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No commits in common. "master" and "v0.0.5" have entirely different histories.

365 changed files with 46119 additions and 444982 deletions

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@ -28,12 +28,12 @@ def pull(repo, remote_name='origin', branch='master'):
if repo.index.conflicts is not None:
for conflict in repo.index.conflicts:
print('Conflicts found in:', conflict[0].path) # noqa: T201
print('Conflicts found in:', conflict[0].path)
raise AssertionError('Conflicts, ahhhhh!!')
user = repo.default_signature
tree = repo.index.write_tree()
repo.create_commit('HEAD',
commit = repo.create_commit('HEAD',
user,
user,
'Merge!',
@ -49,18 +49,18 @@ repo_path = str(sys.argv[1])
repo = pygit2.Repository(repo_path)
ident = pygit2.Signature('comfyui', 'comfy@ui')
try:
print("stashing current changes") # noqa: T201
print("stashing current changes")
repo.stash(ident)
except KeyError:
print("nothing to stash") # noqa: T201
print("nothing to stash")
backup_branch_name = 'backup_branch_{}'.format(datetime.today().strftime('%Y-%m-%d_%H_%M_%S'))
print("creating backup branch: {}".format(backup_branch_name)) # noqa: T201
print("creating backup branch: {}".format(backup_branch_name))
try:
repo.branches.local.create(backup_branch_name, repo.head.peel())
except:
pass
print("checking out master branch") # noqa: T201
print("checking out master branch")
branch = repo.lookup_branch('master')
if branch is None:
ref = repo.lookup_reference('refs/remotes/origin/master')
@ -72,29 +72,10 @@ else:
ref = repo.lookup_reference(branch.name)
repo.checkout(ref)
print("pulling latest changes") # noqa: T201
print("pulling latest changes")
pull(repo)
if "--stable" in sys.argv:
def latest_tag(repo):
versions = []
for k in repo.references:
try:
prefix = "refs/tags/v"
if k.startswith(prefix):
version = list(map(int, k[len(prefix):].split(".")))
versions.append((version[0] * 10000000000 + version[1] * 100000 + version[2], k))
except:
pass
versions.sort()
if len(versions) > 0:
return versions[-1][1]
return None
latest_tag = latest_tag(repo)
if latest_tag is not None:
repo.checkout(latest_tag)
print("Done!") # noqa: T201
print("Done!")
self_update = True
if len(sys.argv) > 2:
@ -134,13 +115,3 @@ if not os.path.exists(req_path) or not files_equal(repo_req_path, req_path):
shutil.copy(repo_req_path, req_path)
except:
pass
stable_update_script = os.path.join(repo_path, ".ci/update_windows/update_comfyui_stable.bat")
stable_update_script_to = os.path.join(cur_path, "update_comfyui_stable.bat")
try:
if not file_size(stable_update_script_to) > 10:
shutil.copy(stable_update_script, stable_update_script_to)
except:
pass

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@ -1,8 +0,0 @@
@echo off
..\python_embeded\python.exe .\update.py ..\ComfyUI\ --stable
if exist update_new.py (
move /y update_new.py update.py
echo Running updater again since it got updated.
..\python_embeded\python.exe .\update.py ..\ComfyUI\ --skip_self_update --stable
)
if "%~1"=="" pause

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@ -14,7 +14,7 @@ run_cpu.bat
IF YOU GET A RED ERROR IN THE UI MAKE SURE YOU HAVE A MODEL/CHECKPOINT IN: ComfyUI\models\checkpoints
You can download the stable diffusion 1.5 one from: https://huggingface.co/Comfy-Org/stable-diffusion-v1-5-archive/blob/main/v1-5-pruned-emaonly-fp16.safetensors
You can download the stable diffusion 1.5 one from: https://huggingface.co/runwayml/stable-diffusion-v1-5/blob/main/v1-5-pruned-emaonly.ckpt
RECOMMENDED WAY TO UPDATE:

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@ -1,2 +0,0 @@
.\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build --fast
pause

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@ -1,2 +0,0 @@
.\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build --fast fp16_accumulation
pause

2
.gitattributes vendored
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@ -1,2 +0,0 @@
/web/assets/** linguist-generated
/web/** linguist-vendored

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@ -1,8 +1,5 @@
blank_issues_enabled: true
contact_links:
- name: ComfyUI Frontend Issues
url: https://github.com/Comfy-Org/ComfyUI_frontend/issues
about: Issues related to the ComfyUI frontend (display issues, user interaction bugs), please go to the frontend repo to file the issue
- name: ComfyUI Matrix Space
url: https://app.element.io/#/room/%23comfyui_space%3Amatrix.org
about: The ComfyUI Matrix Space is available for support and general discussion related to ComfyUI (Matrix is like Discord but open source).

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@ -23,7 +23,7 @@ jobs:
runner_label: [self-hosted, Linux]
flags: ""
- os: windows
runner_label: [self-hosted, Windows]
runner_label: [self-hosted, win]
flags: ""
runs-on: ${{ matrix.runner_label }}
steps:
@ -35,19 +35,3 @@ jobs:
torch_version: ${{ matrix.torch_version }}
google_credentials: ${{ secrets.GCS_SERVICE_ACCOUNT_JSON }}
comfyui_flags: ${{ matrix.flags }}
use_prior_commit: 'true'
comment:
if: ${{ github.event.label.name == 'Run-CI-Test' }}
runs-on: ubuntu-latest
permissions:
pull-requests: write
steps:
- uses: actions/github-script@v6
with:
script: |
github.rest.issues.createComment({
issue_number: context.issue.number,
owner: context.repo.owner,
repo: context.repo.repo,
body: '(Automated Bot Message) CI Tests are running, you can view the results at https://ci.comfy.org/?branch=${{ github.event.pull_request.number }}%2Fmerge'
})

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@ -3,8 +3,8 @@ name: Python Linting
on: [push, pull_request]
jobs:
ruff:
name: Run Ruff
pylint:
name: Run Pylint
runs-on: ubuntu-latest
steps:
@ -16,8 +16,8 @@ jobs:
with:
python-version: 3.x
- name: Install Ruff
run: pip install ruff
- name: Install Pylint
run: pip install pylint
- name: Run Ruff
run: ruff check .
- name: Run Pylint
run: pylint --rcfile=.pylintrc $(find . -type f -name "*.py")

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@ -12,12 +12,12 @@ on:
description: 'CUDA version'
required: true
type: string
default: "126"
default: "121"
python_minor:
description: 'Python minor version'
required: true
type: string
default: "12"
default: "11"
python_patch:
description: 'Python patch version'
required: true

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@ -1,21 +0,0 @@
name: 'Close stale issues'
on:
schedule:
# Run daily at 430 am PT
- cron: '30 11 * * *'
permissions:
issues: write
jobs:
stale:
runs-on: ubuntu-latest
steps:
- uses: actions/stale@v9
with:
stale-issue-message: "This issue is being marked stale because it has not had any activity for 30 days. Reply below within 7 days if your issue still isn't solved, and it will be left open. Otherwise, the issue will be closed automatically."
days-before-stale: 30
days-before-close: 7
stale-issue-label: 'Stale'
only-labels: 'User Support'
exempt-all-assignees: true
exempt-all-milestones: true

76
.github/workflows/test-browser.yml vendored Normal file
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@ -0,0 +1,76 @@
# This is a temporary action during frontend TS migration.
# This file should be removed after TS migration is completed.
# The browser test is here to ensure TS repo is working the same way as the
# current JS code.
# If you are adding UI feature, please sync your changes to the TS repo:
# huchenlei/ComfyUI_frontend and update test expectation files accordingly.
name: Playwright Browser Tests CI
on:
push:
branches: [ main, master ]
pull_request:
branches: [ main, master ]
jobs:
test:
runs-on: ubuntu-latest
steps:
- name: Checkout ComfyUI
uses: actions/checkout@v4
with:
repository: "comfyanonymous/ComfyUI"
path: "ComfyUI"
- name: Checkout ComfyUI_frontend
uses: actions/checkout@v4
with:
repository: "huchenlei/ComfyUI_frontend"
path: "ComfyUI_frontend"
ref: "fcc54d803e5b6a9b08a462a1d94899318c96dcbb"
- uses: actions/setup-node@v3
with:
node-version: lts/*
- uses: actions/setup-python@v4
with:
python-version: '3.8'
- name: Install requirements
run: |
python -m pip install --upgrade pip
pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
pip install -r requirements.txt
pip install wait-for-it
working-directory: ComfyUI
- name: Start ComfyUI server
run: |
python main.py --cpu 2>&1 | tee console_output.log &
wait-for-it --service 127.0.0.1:8188 -t 600
working-directory: ComfyUI
- name: Install ComfyUI_frontend dependencies
run: |
npm ci
working-directory: ComfyUI_frontend
- name: Install Playwright Browsers
run: npx playwright install --with-deps
working-directory: ComfyUI_frontend
- name: Run Playwright tests
run: npx playwright test
working-directory: ComfyUI_frontend
- name: Check for unhandled exceptions in server log
run: |
if grep -qE "Exception|Error" console_output.log; then
echo "Unhandled exception/error found in server log."
exit 1
fi
working-directory: ComfyUI
- uses: actions/upload-artifact@v4
if: always()
with:
name: playwright-report
path: ComfyUI_frontend/playwright-report/
retention-days: 30
- uses: actions/upload-artifact@v4
if: always()
with:
name: console-output
path: ComfyUI/console_output.log
retention-days: 30

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@ -18,7 +18,7 @@ jobs:
strategy:
fail-fast: false
matrix:
python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
python-version: ["3.8", "3.9", "3.10", "3.11"]
steps:
- uses: actions/checkout@v4
- name: Set up Python ${{ matrix.python-version }}

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@ -20,8 +20,7 @@ jobs:
strategy:
fail-fast: false
matrix:
# os: [macos, linux, windows]
os: [macos, linux]
os: [macos, linux, windows]
python_version: ["3.9", "3.10", "3.11", "3.12"]
cuda_version: ["12.1"]
torch_version: ["stable"]
@ -32,9 +31,9 @@ jobs:
- os: linux
runner_label: [self-hosted, Linux]
flags: ""
# - os: windows
# runner_label: [self-hosted, Windows]
# flags: ""
- os: windows
runner_label: [self-hosted, win]
flags: ""
runs-on: ${{ matrix.runner_label }}
steps:
- name: Test Workflows
@ -46,28 +45,28 @@ jobs:
google_credentials: ${{ secrets.GCS_SERVICE_ACCOUNT_JSON }}
comfyui_flags: ${{ matrix.flags }}
# test-win-nightly:
# strategy:
# fail-fast: true
# matrix:
# os: [windows]
# python_version: ["3.9", "3.10", "3.11", "3.12"]
# cuda_version: ["12.1"]
# torch_version: ["nightly"]
# include:
# - os: windows
# runner_label: [self-hosted, Windows]
# flags: ""
# runs-on: ${{ matrix.runner_label }}
# steps:
# - name: Test Workflows
# uses: comfy-org/comfy-action@main
# with:
# os: ${{ matrix.os }}
# python_version: ${{ matrix.python_version }}
# torch_version: ${{ matrix.torch_version }}
# google_credentials: ${{ secrets.GCS_SERVICE_ACCOUNT_JSON }}
# comfyui_flags: ${{ matrix.flags }}
test-win-nightly:
strategy:
fail-fast: true
matrix:
os: [windows]
python_version: ["3.9", "3.10", "3.11", "3.12"]
cuda_version: ["12.1"]
torch_version: ["nightly"]
include:
- os: windows
runner_label: [self-hosted, win]
flags: ""
runs-on: ${{ matrix.runner_label }}
steps:
- name: Test Workflows
uses: comfy-org/comfy-action@main
with:
os: ${{ matrix.os }}
python_version: ${{ matrix.python_version }}
torch_version: ${{ matrix.torch_version }}
google_credentials: ${{ secrets.GCS_SERVICE_ACCOUNT_JSON }}
comfyui_flags: ${{ matrix.flags }}
test-unix-nightly:
strategy:

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@ -1,45 +0,0 @@
name: Test server launches without errors
on:
push:
branches: [ main, master ]
pull_request:
branches: [ main, master ]
jobs:
test:
runs-on: ubuntu-latest
steps:
- name: Checkout ComfyUI
uses: actions/checkout@v4
with:
repository: "comfyanonymous/ComfyUI"
path: "ComfyUI"
- uses: actions/setup-python@v4
with:
python-version: '3.9'
- name: Install requirements
run: |
python -m pip install --upgrade pip
pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
pip install -r requirements.txt
pip install wait-for-it
working-directory: ComfyUI
- name: Start ComfyUI server
run: |
python main.py --cpu 2>&1 | tee console_output.log &
wait-for-it --service 127.0.0.1:8188 -t 30
working-directory: ComfyUI
- name: Check for unhandled exceptions in server log
run: |
if grep -qE "Exception|Error" console_output.log; then
echo "Unhandled exception/error found in server log."
exit 1
fi
working-directory: ComfyUI
- uses: actions/upload-artifact@v4
if: always()
with:
name: console-output
path: ComfyUI/console_output.log
retention-days: 30

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@ -1,29 +1,29 @@
name: Unit Tests
name: Tests CI
on:
push:
branches: [ main, master ]
pull_request:
branches: [ main, master ]
on: [push, pull_request]
jobs:
test:
strategy:
matrix:
os: [ubuntu-latest, windows-latest, macos-latest]
runs-on: ${{ matrix.os }}
continue-on-error: true
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Set up Python
uses: actions/setup-python@v4
- uses: actions/setup-node@v3
with:
python-version: '3.12'
node-version: 18
- uses: actions/setup-python@v4
with:
python-version: '3.10'
- name: Install requirements
run: |
python -m pip install --upgrade pip
pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
pip install -r requirements.txt
- name: Run Tests
run: |
npm ci
npm run test:generate
npm test -- --verbose
working-directory: ./tests-ui
- name: Run Unit Tests
run: |
pip install -r tests-unit/requirements.txt

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@ -1,58 +0,0 @@
name: Update Version File
on:
pull_request:
paths:
- "pyproject.toml"
branches:
- master
jobs:
update-version:
runs-on: ubuntu-latest
# Don't run on fork PRs
if: github.event.pull_request.head.repo.full_name == github.repository
permissions:
pull-requests: write
contents: write
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: "3.11"
- name: Install dependencies
run: |
python -m pip install --upgrade pip
- name: Update comfyui_version.py
run: |
# Read version from pyproject.toml and update comfyui_version.py
python -c '
import tomllib
# Read version from pyproject.toml
with open("pyproject.toml", "rb") as f:
config = tomllib.load(f)
version = config["project"]["version"]
# Write version to comfyui_version.py
with open("comfyui_version.py", "w") as f:
f.write("# This file is automatically generated by the build process when version is\n")
f.write("# updated in pyproject.toml.\n")
f.write(f"__version__ = \"{version}\"\n")
'
- name: Commit changes
run: |
git config --local user.name "github-actions"
git config --local user.email "github-actions@github.com"
git fetch origin ${{ github.head_ref }}
git checkout -B ${{ github.head_ref }} origin/${{ github.head_ref }}
git add comfyui_version.py
git diff --quiet && git diff --staged --quiet || git commit -m "chore: Update comfyui_version.py to match pyproject.toml"
git push origin HEAD:${{ github.head_ref }}

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@ -12,18 +12,18 @@ on:
description: 'extra dependencies'
required: false
type: string
default: ""
default: "\"numpy<2\""
cu:
description: 'cuda version'
required: true
type: string
default: "126"
default: "124"
python_minor:
description: 'python minor version'
required: true
type: string
default: "12"
default: "11"
python_patch:
description: 'python patch version'

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@ -7,19 +7,19 @@ on:
description: 'cuda version'
required: true
type: string
default: "128"
default: "124"
python_minor:
description: 'python minor version'
required: true
type: string
default: "13"
default: "12"
python_patch:
description: 'python patch version'
required: true
type: string
default: "2"
default: "4"
# push:
# branches:
# - master
@ -34,7 +34,7 @@ jobs:
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 30
fetch-depth: 0
persist-credentials: false
- uses: actions/setup-python@v5
with:
@ -67,14 +67,13 @@ jobs:
mkdir update
cp -r ComfyUI/.ci/update_windows/* ./update/
cp -r ComfyUI/.ci/windows_base_files/* ./
cp -r ComfyUI/.ci/windows_nightly_base_files/* ./
echo "call update_comfyui.bat nopause
..\python_embeded\python.exe -s -m pip install --upgrade --pre torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/nightly/cu${{ inputs.cu }} -r ../ComfyUI/requirements.txt pygit2
pause" > ./update/update_comfyui_and_python_dependencies.bat
cd ..
"C:\Program Files\7-Zip\7z.exe" a -t7z -m0=lzma2 -mx=9 -mfb=128 -md=512m -ms=on -mf=BCJ2 ComfyUI_windows_portable_nightly_pytorch.7z ComfyUI_windows_portable_nightly_pytorch
"C:\Program Files\7-Zip\7z.exe" a -t7z -m0=lzma2 -mx=8 -mfb=64 -md=32m -ms=on -mf=BCJ2 ComfyUI_windows_portable_nightly_pytorch.7z ComfyUI_windows_portable_nightly_pytorch
mv ComfyUI_windows_portable_nightly_pytorch.7z ComfyUI/ComfyUI_windows_portable_nvidia_or_cpu_nightly_pytorch.7z
cd ComfyUI_windows_portable_nightly_pytorch

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@ -7,13 +7,13 @@ on:
description: 'cuda version'
required: true
type: string
default: "126"
default: "124"
python_minor:
description: 'python minor version'
required: true
type: string
default: "12"
default: "11"
python_patch:
description: 'python patch version'

2
.gitignore vendored
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@ -12,7 +12,6 @@ extra_model_paths.yaml
.vscode/
.idea/
venv/
.venv/
/web/extensions/*
!/web/extensions/logging.js.example
!/web/extensions/core/
@ -20,4 +19,3 @@ venv/
/user/
*.log
web_custom_versions/
.DS_Store

3
.pylintrc Normal file
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@ -0,0 +1,3 @@
[MESSAGES CONTROL]
disable=all
enable=eval-used

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@ -1,24 +1 @@
# Admins
* @comfyanonymous
# Note: Github teams syntax cannot be used here as the repo is not owned by Comfy-Org.
# Inlined the team members for now.
# Maintainers
*.md @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/tests/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/tests-unit/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/notebooks/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/script_examples/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/.github/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/requirements.txt @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
/pyproject.toml @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @Kosinkadink @christian-byrne
# Python web server
/api_server/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @christian-byrne
/app/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @christian-byrne
/utils/ @yoland68 @robinjhuang @huchenlei @webfiltered @pythongosssss @ltdrdata @christian-byrne
# Node developers
/comfy_extras/ @yoland68 @robinjhuang @huchenlei @pythongosssss @ltdrdata @Kosinkadink @webfiltered @christian-byrne
/comfy/comfy_types/ @yoland68 @robinjhuang @huchenlei @pythongosssss @ltdrdata @Kosinkadink @webfiltered @christian-byrne

269
README.md
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@ -1,78 +1,18 @@
<div align="center">
ComfyUI
=======
The most powerful and modular stable diffusion GUI and backend.
-----------
![ComfyUI Screenshot](comfyui_screenshot.png)
# ComfyUI
**The most powerful and modular visual AI engine and application.**
[![Website][website-shield]][website-url]
[![Dynamic JSON Badge][discord-shield]][discord-url]
[![Matrix][matrix-shield]][matrix-url]
<br>
[![][github-release-shield]][github-release-link]
[![][github-release-date-shield]][github-release-link]
[![][github-downloads-shield]][github-downloads-link]
[![][github-downloads-latest-shield]][github-downloads-link]
[matrix-shield]: https://img.shields.io/badge/Matrix-000000?style=flat&logo=matrix&logoColor=white
[matrix-url]: https://app.element.io/#/room/%23comfyui_space%3Amatrix.org
[website-shield]: https://img.shields.io/badge/ComfyOrg-4285F4?style=flat
[website-url]: https://www.comfy.org/
<!-- Workaround to display total user from https://github.com/badges/shields/issues/4500#issuecomment-2060079995 -->
[discord-shield]: https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fdiscord.com%2Fapi%2Finvites%2Fcomfyorg%3Fwith_counts%3Dtrue&query=%24.approximate_member_count&logo=discord&logoColor=white&label=Discord&color=green&suffix=%20total
[discord-url]: https://www.comfy.org/discord
[github-release-shield]: https://img.shields.io/github/v/release/comfyanonymous/ComfyUI?style=flat&sort=semver
[github-release-link]: https://github.com/comfyanonymous/ComfyUI/releases
[github-release-date-shield]: https://img.shields.io/github/release-date/comfyanonymous/ComfyUI?style=flat
[github-downloads-shield]: https://img.shields.io/github/downloads/comfyanonymous/ComfyUI/total?style=flat
[github-downloads-latest-shield]: https://img.shields.io/github/downloads/comfyanonymous/ComfyUI/latest/total?style=flat&label=downloads%40latest
[github-downloads-link]: https://github.com/comfyanonymous/ComfyUI/releases
![ComfyUI Screenshot](https://github.com/user-attachments/assets/7ccaf2c1-9b72-41ae-9a89-5688c94b7abe)
</div>
ComfyUI lets you design and execute advanced stable diffusion pipelines using a graph/nodes/flowchart based interface. Available on Windows, Linux, and macOS.
## Get Started
#### [Desktop Application](https://www.comfy.org/download)
- The easiest way to get started.
- Available on Windows & macOS.
#### [Windows Portable Package](#installing)
- Get the latest commits and completely portable.
- Available on Windows.
#### [Manual Install](#manual-install-windows-linux)
Supports all operating systems and GPU types (NVIDIA, AMD, Intel, Apple Silicon, Ascend).
## [Examples](https://comfyanonymous.github.io/ComfyUI_examples/)
See what ComfyUI can do with the [example workflows](https://comfyanonymous.github.io/ComfyUI_examples/).
This ui will let you design and execute advanced stable diffusion pipelines using a graph/nodes/flowchart based interface. For some workflow examples and see what ComfyUI can do you can check out:
### [ComfyUI Examples](https://comfyanonymous.github.io/ComfyUI_examples/)
### [Installing ComfyUI](#installing)
## Features
- Nodes/graph/flowchart interface to experiment and create complex Stable Diffusion workflows without needing to code anything.
- Image Models
- SD1.x, SD2.x,
- [SDXL](https://comfyanonymous.github.io/ComfyUI_examples/sdxl/), [SDXL Turbo](https://comfyanonymous.github.io/ComfyUI_examples/sdturbo/)
- [Stable Cascade](https://comfyanonymous.github.io/ComfyUI_examples/stable_cascade/)
- [SD3 and SD3.5](https://comfyanonymous.github.io/ComfyUI_examples/sd3/)
- Pixart Alpha and Sigma
- [AuraFlow](https://comfyanonymous.github.io/ComfyUI_examples/aura_flow/)
- [HunyuanDiT](https://comfyanonymous.github.io/ComfyUI_examples/hunyuan_dit/)
- Fully supports SD1.x, SD2.x, [SDXL](https://comfyanonymous.github.io/ComfyUI_examples/sdxl/), [Stable Video Diffusion](https://comfyanonymous.github.io/ComfyUI_examples/video/), [Stable Cascade](https://comfyanonymous.github.io/ComfyUI_examples/stable_cascade/), [SD3](https://comfyanonymous.github.io/ComfyUI_examples/sd3/) and [Stable Audio](https://comfyanonymous.github.io/ComfyUI_examples/audio/)
- [Flux](https://comfyanonymous.github.io/ComfyUI_examples/flux/)
- [Lumina Image 2.0](https://comfyanonymous.github.io/ComfyUI_examples/lumina2/)
- [HiDream](https://comfyanonymous.github.io/ComfyUI_examples/hidream/)
- Video Models
- [Stable Video Diffusion](https://comfyanonymous.github.io/ComfyUI_examples/video/)
- [Mochi](https://comfyanonymous.github.io/ComfyUI_examples/mochi/)
- [LTX-Video](https://comfyanonymous.github.io/ComfyUI_examples/ltxv/)
- [Hunyuan Video](https://comfyanonymous.github.io/ComfyUI_examples/hunyuan_video/)
- [Nvidia Cosmos](https://comfyanonymous.github.io/ComfyUI_examples/cosmos/)
- [Wan 2.1](https://comfyanonymous.github.io/ComfyUI_examples/wan/)
- 3D Models
- [Hunyuan3D 2.0](https://docs.comfy.org/tutorials/3d/hunyuan3D-2)
- [Stable Audio](https://comfyanonymous.github.io/ComfyUI_examples/audio/)
- Asynchronous Queue system
- Many optimizations: Only re-executes the parts of the workflow that changes between executions.
- Smart memory management: can automatically run models on GPUs with as low as 1GB vram.
@ -92,6 +32,9 @@ See what ComfyUI can do with the [example workflows](https://comfyanonymous.gith
- [GLIGEN](https://comfyanonymous.github.io/ComfyUI_examples/gligen/)
- [Model Merging](https://comfyanonymous.github.io/ComfyUI_examples/model_merging/)
- [LCM models and Loras](https://comfyanonymous.github.io/ComfyUI_examples/lcm/)
- [SDXL Turbo](https://comfyanonymous.github.io/ComfyUI_examples/sdturbo/)
- [AuraFlow](https://comfyanonymous.github.io/ComfyUI_examples/aura_flow/)
- [HunyuanDiT](https://comfyanonymous.github.io/ComfyUI_examples/hunyuan_dit/)
- Latent previews with [TAESD](#how-to-show-high-quality-previews)
- Starts up very fast.
- Works fully offline: will never download anything.
@ -103,43 +46,36 @@ Workflow examples can be found on the [Examples page](https://comfyanonymous.git
| Keybind | Explanation |
|------------------------------------|--------------------------------------------------------------------------------------------------------------------|
| `Ctrl` + `Enter` | Queue up current graph for generation |
| `Ctrl` + `Shift` + `Enter` | Queue up current graph as first for generation |
| `Ctrl` + `Alt` + `Enter` | Cancel current generation |
| `Ctrl` + `Z`/`Ctrl` + `Y` | Undo/Redo |
| `Ctrl` + `S` | Save workflow |
| `Ctrl` + `O` | Load workflow |
| `Ctrl` + `A` | Select all nodes |
| `Alt `+ `C` | Collapse/uncollapse selected nodes |
| `Ctrl` + `M` | Mute/unmute selected nodes |
| `Ctrl` + `B` | Bypass selected nodes (acts like the node was removed from the graph and the wires reconnected through) |
| `Delete`/`Backspace` | Delete selected nodes |
| `Ctrl` + `Backspace` | Delete the current graph |
| `Space` | Move the canvas around when held and moving the cursor |
| `Ctrl`/`Shift` + `Click` | Add clicked node to selection |
| `Ctrl` + `C`/`Ctrl` + `V` | Copy and paste selected nodes (without maintaining connections to outputs of unselected nodes) |
| `Ctrl` + `C`/`Ctrl` + `Shift` + `V` | Copy and paste selected nodes (maintaining connections from outputs of unselected nodes to inputs of pasted nodes) |
| `Shift` + `Drag` | Move multiple selected nodes at the same time |
| `Ctrl` + `D` | Load default graph |
| `Alt` + `+` | Canvas Zoom in |
| `Alt` + `-` | Canvas Zoom out |
| `Ctrl` + `Shift` + LMB + Vertical drag | Canvas Zoom in/out |
| `P` | Pin/Unpin selected nodes |
| `Ctrl` + `G` | Group selected nodes |
| `Q` | Toggle visibility of the queue |
| `H` | Toggle visibility of history |
| `R` | Refresh graph |
| `F` | Show/Hide menu |
| `.` | Fit view to selection (Whole graph when nothing is selected) |
| Ctrl + Enter | Queue up current graph for generation |
| Ctrl + Shift + Enter | Queue up current graph as first for generation |
| Ctrl + Z/Ctrl + Y | Undo/Redo |
| Ctrl + S | Save workflow |
| Ctrl + O | Load workflow |
| Ctrl + A | Select all nodes |
| Alt + C | Collapse/uncollapse selected nodes |
| Ctrl + M | Mute/unmute selected nodes |
| Ctrl + B | Bypass selected nodes (acts like the node was removed from the graph and the wires reconnected through) |
| Delete/Backspace | Delete selected nodes |
| Ctrl + Backspace | Delete the current graph |
| Space | Move the canvas around when held and moving the cursor |
| Ctrl/Shift + Click | Add clicked node to selection |
| Ctrl + C/Ctrl + V | Copy and paste selected nodes (without maintaining connections to outputs of unselected nodes) |
| Ctrl + C/Ctrl + Shift + V | Copy and paste selected nodes (maintaining connections from outputs of unselected nodes to inputs of pasted nodes) |
| Shift + Drag | Move multiple selected nodes at the same time |
| Ctrl + D | Load default graph |
| Alt + `+` | Canvas Zoom in |
| Alt + `-` | Canvas Zoom out |
| Ctrl + Shift + LMB + Vertical drag | Canvas Zoom in/out |
| Q | Toggle visibility of the queue |
| H | Toggle visibility of history |
| R | Refresh graph |
| Double-Click LMB | Open node quick search palette |
| `Shift` + Drag | Move multiple wires at once |
| `Ctrl` + `Alt` + LMB | Disconnect all wires from clicked slot |
`Ctrl` can also be replaced with `Cmd` instead for macOS users
Ctrl can also be replaced with Cmd instead for macOS users
# Installing
## Windows Portable
## Windows
There is a portable standalone build for Windows that should work for running on Nvidia GPUs or for running on your CPU only on the [releases page](https://github.com/comfyanonymous/ComfyUI/releases).
@ -149,8 +85,6 @@ Simply download, extract with [7-Zip](https://7-zip.org) and run. Make sure you
If you have trouble extracting it, right click the file -> properties -> unblock
If you have a 50 series Blackwell card like a 5090 or 5080 see [this discussion thread](https://github.com/comfyanonymous/ComfyUI/discussions/6643)
#### How do I share models between another UI and ComfyUI?
See the [Config file](extra_model_paths.yaml.example) to set the search paths for models. In the standalone windows build you can find this file in the ComfyUI directory. Rename this file to extra_model_paths.yaml and edit it with your favorite text editor.
@ -159,19 +93,8 @@ See the [Config file](extra_model_paths.yaml.example) to set the search paths fo
To run it on services like paperspace, kaggle or colab you can use my [Jupyter Notebook](notebooks/comfyui_colab.ipynb)
## [comfy-cli](https://docs.comfy.org/comfy-cli/getting-started)
You can install and start ComfyUI using comfy-cli:
```bash
pip install comfy-cli
comfy install
```
## Manual Install (Windows, Linux)
python 3.13 is supported but using 3.12 is recommended because some custom nodes and their dependencies might not support it yet.
Git clone this repo.
Put your SD checkpoints (the huge ckpt/safetensors files) in: models/checkpoints
@ -182,45 +105,21 @@ Put your VAE in: models/vae
### AMD GPUs (Linux only)
AMD users can install rocm and pytorch with pip if you don't have it already installed, this is the command to install the stable version:
```pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.2.4```
```pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.0```
This is the command to install the nightly with ROCm 6.3 which might have some performance improvements:
This is the command to install the nightly with ROCm 6.0 which might have some performance improvements:
```pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/rocm6.3```
### Intel GPUs (Windows and Linux)
(Option 1) Intel Arc GPU users can install native PyTorch with torch.xpu support using pip (currently available in PyTorch nightly builds). More information can be found [here](https://pytorch.org/docs/main/notes/get_start_xpu.html)
1. To install PyTorch nightly, use the following command:
```pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/xpu```
2. Launch ComfyUI by running `python main.py`
(Option 2) Alternatively, Intel GPUs supported by Intel Extension for PyTorch (IPEX) can leverage IPEX for improved performance.
1. For Intel® Arc™ A-Series Graphics utilizing IPEX, create a conda environment and use the commands below:
```
conda install libuv
pip install torch==2.3.1.post0+cxx11.abi torchvision==0.18.1.post0+cxx11.abi torchaudio==2.3.1.post0+cxx11.abi intel-extension-for-pytorch==2.3.110.post0+xpu --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/ --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/cn/
```
For other supported Intel GPUs with IPEX, visit [Installation](https://intel.github.io/intel-extension-for-pytorch/index.html#installation?platform=gpu) for more information.
Additional discussion and help can be found [here](https://github.com/comfyanonymous/ComfyUI/discussions/476).
```pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/rocm6.1```
### NVIDIA
Nvidia users should install stable pytorch using this command:
```pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu126```
```pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu121```
This is the command to install pytorch nightly instead which supports the new blackwell 50xx series GPUs and might have performance improvements.
This is the command to install pytorch nightly instead which might have performance improvements:
```pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cu128```
```pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cu124```
#### Troubleshooting
@ -240,6 +139,17 @@ After this you should have everything installed and can proceed to running Comfy
### Others:
#### Intel GPUs
Intel GPU support is available for all Intel GPUs supported by Intel's Extension for Pytorch (IPEX) with the support requirements listed in the [Installation](https://intel.github.io/intel-extension-for-pytorch/index.html#installation?platform=gpu) page. Choose your platform and method of install and follow the instructions. The steps are as follows:
1. Start by installing the drivers or kernel listed or newer in the Installation page of IPEX linked above for Windows and Linux if needed.
1. Follow the instructions to install [Intel's oneAPI Basekit](https://www.intel.com/content/www/us/en/developer/tools/oneapi/base-toolkit-download.html) for your platform.
1. Install the packages for IPEX using the instructions provided in the Installation page for your platform.
1. Follow the [ComfyUI manual installation](#manual-install-windows-linux) instructions for Windows and Linux and run ComfyUI normally as described above after everything is installed.
Additional discussion and help can be found [here](https://github.com/comfyanonymous/ComfyUI/discussions/476).
#### Apple Mac silicon
You can install ComfyUI in Apple Mac silicon (M1 or M2) with any recent macOS version.
@ -255,23 +165,6 @@ You can install ComfyUI in Apple Mac silicon (M1 or M2) with any recent macOS ve
```pip install torch-directml``` Then you can launch ComfyUI with: ```python main.py --directml```
#### Ascend NPUs
For models compatible with Ascend Extension for PyTorch (torch_npu). To get started, ensure your environment meets the prerequisites outlined on the [installation](https://ascend.github.io/docs/sources/ascend/quick_install.html) page. Here's a step-by-step guide tailored to your platform and installation method:
1. Begin by installing the recommended or newer kernel version for Linux as specified in the Installation page of torch-npu, if necessary.
2. Proceed with the installation of Ascend Basekit, which includes the driver, firmware, and CANN, following the instructions provided for your specific platform.
3. Next, install the necessary packages for torch-npu by adhering to the platform-specific instructions on the [Installation](https://ascend.github.io/docs/sources/pytorch/install.html#pytorch) page.
4. Finally, adhere to the [ComfyUI manual installation](#manual-install-windows-linux) guide for Linux. Once all components are installed, you can run ComfyUI as described earlier.
#### Cambricon MLUs
For models compatible with Cambricon Extension for PyTorch (torch_mlu). Here's a step-by-step guide tailored to your platform and installation method:
1. Install the Cambricon CNToolkit by adhering to the platform-specific instructions on the [Installation](https://www.cambricon.com/docs/sdk_1.15.0/cntoolkit_3.7.2/cntoolkit_install_3.7.2/index.html)
2. Next, install the PyTorch(torch_mlu) following the instructions on the [Installation](https://www.cambricon.com/docs/sdk_1.15.0/cambricon_pytorch_1.17.0/user_guide_1.9/index.html)
3. Launch ComfyUI by running `python main.py`
# Running
```python main.py```
@ -284,14 +177,6 @@ For 6700, 6600 and maybe other RDNA2 or older: ```HSA_OVERRIDE_GFX_VERSION=10.3.
For AMD 7600 and maybe other RDNA3 cards: ```HSA_OVERRIDE_GFX_VERSION=11.0.0 python main.py```
### AMD ROCm Tips
You can enable experimental memory efficient attention on pytorch 2.5 in ComfyUI on RDNA3 and potentially other AMD GPUs using this command:
```TORCH_ROCM_AOTRITON_ENABLE_EXPERIMENTAL=1 python main.py --use-pytorch-cross-attention```
You can also try setting this env variable `PYTORCH_TUNABLEOP_ENABLED=1` which might speed things up at the cost of a very slow initial run.
# Notes
Only parts of the graph that have an output with all the correct inputs will be executed.
@ -315,7 +200,7 @@ To use a textual inversion concepts/embeddings in a text prompt put them in the
Use ```--preview-method auto``` to enable previews.
The default installation includes a fast latent preview method that's low-resolution. To enable higher-quality previews with [TAESD](https://github.com/madebyollin/taesd), download the [taesd_decoder.pth, taesdxl_decoder.pth, taesd3_decoder.pth and taef1_decoder.pth](https://github.com/madebyollin/taesd/) and place them in the `models/vae_approx` folder. Once they're installed, restart ComfyUI and launch it with `--preview-method taesd` to enable high-quality previews.
The default installation includes a fast latent preview method that's low-resolution. To enable higher-quality previews with [TAESD](https://github.com/madebyollin/taesd), download the [taesd_decoder.pth](https://github.com/madebyollin/taesd/raw/main/taesd_decoder.pth) (for SD1.x and SD2.x) and [taesdxl_decoder.pth](https://github.com/madebyollin/taesd/raw/main/taesdxl_decoder.pth) (for SDXL) models and place them in the `models/vae_approx` folder. Once they're installed, restart ComfyUI to enable high-quality previews.
## How to use TLS/SSL?
Generate a self-signed certificate (not appropriate for shared/production use) and key by running the command: `openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -sha256 -days 3650 -nodes -subj "/C=XX/ST=StateName/L=CityName/O=CompanyName/OU=CompanySectionName/CN=CommonNameOrHostname"`
@ -327,55 +212,13 @@ Use `--tls-keyfile key.pem --tls-certfile cert.pem` to enable TLS/SSL, the app w
## Support and dev channel
[Discord](https://comfy.org/discord): Try the #help or #feedback channels.
[Matrix space: #comfyui_space:matrix.org](https://app.element.io/#/room/%23comfyui_space%3Amatrix.org) (it's like discord but open source).
See also: [https://www.comfy.org/](https://www.comfy.org/)
## Frontend Development
As of August 15, 2024, we have transitioned to a new frontend, which is now hosted in a separate repository: [ComfyUI Frontend](https://github.com/Comfy-Org/ComfyUI_frontend). This repository now hosts the compiled JS (from TS/Vue) under the `web/` directory.
### Reporting Issues and Requesting Features
For any bugs, issues, or feature requests related to the frontend, please use the [ComfyUI Frontend repository](https://github.com/Comfy-Org/ComfyUI_frontend). This will help us manage and address frontend-specific concerns more efficiently.
### Using the Latest Frontend
The new frontend is now the default for ComfyUI. However, please note:
1. The frontend in the main ComfyUI repository is updated fortnightly.
2. Daily releases are available in the separate frontend repository.
To use the most up-to-date frontend version:
1. For the latest daily release, launch ComfyUI with this command line argument:
```
--front-end-version Comfy-Org/ComfyUI_frontend@latest
```
2. For a specific version, replace `latest` with the desired version number:
```
--front-end-version Comfy-Org/ComfyUI_frontend@1.2.2
```
This approach allows you to easily switch between the stable fortnightly release and the cutting-edge daily updates, or even specific versions for testing purposes.
### Accessing the Legacy Frontend
If you need to use the legacy frontend for any reason, you can access it using the following command line argument:
```
--front-end-version Comfy-Org/ComfyUI_legacy_frontend@latest
```
This will use a snapshot of the legacy frontend preserved in the [ComfyUI Legacy Frontend repository](https://github.com/Comfy-Org/ComfyUI_legacy_frontend).
# QA
### Which GPU should I buy for this?
[See this page for some recommendations](https://github.com/comfyanonymous/ComfyUI/wiki/Which-GPU-should-I-buy-for-ComfyUI)

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@ -1,3 +0,0 @@
# ComfyUI Internal Routes
All routes under the `/internal` path are designated for **internal use by ComfyUI only**. These routes are not intended for use by external applications may change at any time without notice.

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@ -1,73 +0,0 @@
from aiohttp import web
from typing import Optional
from folder_paths import folder_names_and_paths, get_directory_by_type
from api_server.services.terminal_service import TerminalService
import app.logger
import os
class InternalRoutes:
'''
The top level web router for internal routes: /internal/*
The endpoints here should NOT be depended upon. It is for ComfyUI frontend use only.
Check README.md for more information.
'''
def __init__(self, prompt_server):
self.routes: web.RouteTableDef = web.RouteTableDef()
self._app: Optional[web.Application] = None
self.prompt_server = prompt_server
self.terminal_service = TerminalService(prompt_server)
def setup_routes(self):
@self.routes.get('/logs')
async def get_logs(request):
return web.json_response("".join([(l["t"] + " - " + l["m"]) for l in app.logger.get_logs()]))
@self.routes.get('/logs/raw')
async def get_raw_logs(request):
self.terminal_service.update_size()
return web.json_response({
"entries": list(app.logger.get_logs()),
"size": {"cols": self.terminal_service.cols, "rows": self.terminal_service.rows}
})
@self.routes.patch('/logs/subscribe')
async def subscribe_logs(request):
json_data = await request.json()
client_id = json_data["clientId"]
enabled = json_data["enabled"]
if enabled:
self.terminal_service.subscribe(client_id)
else:
self.terminal_service.unsubscribe(client_id)
return web.Response(status=200)
@self.routes.get('/folder_paths')
async def get_folder_paths(request):
response = {}
for key in folder_names_and_paths:
response[key] = folder_names_and_paths[key][0]
return web.json_response(response)
@self.routes.get('/files/{directory_type}')
async def get_files(request: web.Request) -> web.Response:
directory_type = request.match_info['directory_type']
if directory_type not in ("output", "input", "temp"):
return web.json_response({"error": "Invalid directory type"}, status=400)
directory = get_directory_by_type(directory_type)
sorted_files = sorted(
(entry for entry in os.scandir(directory) if entry.is_file()),
key=lambda entry: -entry.stat().st_mtime
)
return web.json_response([entry.name for entry in sorted_files], status=200)
def get_app(self):
if self._app is None:
self._app = web.Application()
self.setup_routes()
self._app.add_routes(self.routes)
return self._app

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@ -1,60 +0,0 @@
from app.logger import on_flush
import os
import shutil
class TerminalService:
def __init__(self, server):
self.server = server
self.cols = None
self.rows = None
self.subscriptions = set()
on_flush(self.send_messages)
def get_terminal_size(self):
try:
size = os.get_terminal_size()
return (size.columns, size.lines)
except OSError:
try:
size = shutil.get_terminal_size()
return (size.columns, size.lines)
except OSError:
return (80, 24) # fallback to 80x24
def update_size(self):
columns, lines = self.get_terminal_size()
changed = False
if columns != self.cols:
self.cols = columns
changed = True
if lines != self.rows:
self.rows = lines
changed = True
if changed:
return {"cols": self.cols, "rows": self.rows}
return None
def subscribe(self, client_id):
self.subscriptions.add(client_id)
def unsubscribe(self, client_id):
self.subscriptions.discard(client_id)
def send_messages(self, entries):
if not len(entries) or not len(self.subscriptions):
return
new_size = self.update_size()
for client_id in self.subscriptions.copy(): # prevent: Set changed size during iteration
if client_id not in self.server.sockets:
# Automatically unsub if the socket has disconnected
self.unsubscribe(client_id)
continue
self.server.send_sync("logs", {"entries": entries, "size": new_size}, client_id)

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@ -1,42 +0,0 @@
import os
from typing import List, Union, TypedDict, Literal
from typing_extensions import TypeGuard
class FileInfo(TypedDict):
name: str
path: str
type: Literal["file"]
size: int
class DirectoryInfo(TypedDict):
name: str
path: str
type: Literal["directory"]
FileSystemItem = Union[FileInfo, DirectoryInfo]
def is_file_info(item: FileSystemItem) -> TypeGuard[FileInfo]:
return item["type"] == "file"
class FileSystemOperations:
@staticmethod
def walk_directory(directory: str) -> List[FileSystemItem]:
file_list: List[FileSystemItem] = []
for root, dirs, files in os.walk(directory):
for name in files:
file_path = os.path.join(root, name)
relative_path = os.path.relpath(file_path, directory)
file_list.append({
"name": name,
"path": relative_path,
"type": "file",
"size": os.path.getsize(file_path)
})
for name in dirs:
dir_path = os.path.join(root, name)
relative_path = os.path.relpath(dir_path, directory)
file_list.append({
"name": name,
"path": relative_path,
"type": "directory"
})
return file_list

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@ -1,7 +1,6 @@
import os
import json
from aiohttp import web
import logging
class AppSettings():
@ -9,21 +8,11 @@ class AppSettings():
self.user_manager = user_manager
def get_settings(self, request):
try:
file = self.user_manager.get_request_user_filepath(
request,
"comfy.settings.json"
)
except KeyError as e:
logging.error("User settings not found.")
raise web.HTTPUnauthorized() from e
request, "comfy.settings.json")
if os.path.isfile(file):
try:
with open(file) as f:
return json.load(f)
except:
logging.error(f"The user settings file is corrupted: {file}")
return {}
else:
return {}

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@ -1,134 +0,0 @@
from __future__ import annotations
import os
import folder_paths
import glob
from aiohttp import web
import json
import logging
from functools import lru_cache
from utils.json_util import merge_json_recursive
# Extra locale files to load into main.json
EXTRA_LOCALE_FILES = [
"nodeDefs.json",
"commands.json",
"settings.json",
]
def safe_load_json_file(file_path: str) -> dict:
if not os.path.exists(file_path):
return {}
try:
with open(file_path, "r", encoding="utf-8") as f:
return json.load(f)
except json.JSONDecodeError:
logging.error(f"Error loading {file_path}")
return {}
class CustomNodeManager:
@lru_cache(maxsize=1)
def build_translations(self):
"""Load all custom nodes translations during initialization. Translations are
expected to be loaded from `locales/` folder.
The folder structure is expected to be the following:
- custom_nodes/
- custom_node_1/
- locales/
- en/
- main.json
- commands.json
- settings.json
returned translations are expected to be in the following format:
{
"en": {
"nodeDefs": {...},
"commands": {...},
"settings": {...},
...{other main.json keys}
}
}
"""
translations = {}
for folder in folder_paths.get_folder_paths("custom_nodes"):
# Sort glob results for deterministic ordering
for custom_node_dir in sorted(glob.glob(os.path.join(folder, "*/"))):
locales_dir = os.path.join(custom_node_dir, "locales")
if not os.path.exists(locales_dir):
continue
for lang_dir in glob.glob(os.path.join(locales_dir, "*/")):
lang_code = os.path.basename(os.path.dirname(lang_dir))
if lang_code not in translations:
translations[lang_code] = {}
# Load main.json
main_file = os.path.join(lang_dir, "main.json")
node_translations = safe_load_json_file(main_file)
# Load extra locale files
for extra_file in EXTRA_LOCALE_FILES:
extra_file_path = os.path.join(lang_dir, extra_file)
key = extra_file.split(".")[0]
json_data = safe_load_json_file(extra_file_path)
if json_data:
node_translations[key] = json_data
if node_translations:
translations[lang_code] = merge_json_recursive(
translations[lang_code], node_translations
)
return translations
def add_routes(self, routes, webapp, loadedModules):
@routes.get("/workflow_templates")
async def get_workflow_templates(request):
"""Returns a web response that contains the map of custom_nodes names and their associated workflow templates. The ones without templates are omitted."""
files = [
file
for folder in folder_paths.get_folder_paths("custom_nodes")
for file in glob.glob(
os.path.join(folder, "*/example_workflows/*.json")
)
]
workflow_templates_dict = (
{}
) # custom_nodes folder name -> example workflow names
for file in files:
custom_nodes_name = os.path.basename(
os.path.dirname(os.path.dirname(file))
)
workflow_name = os.path.splitext(os.path.basename(file))[0]
workflow_templates_dict.setdefault(custom_nodes_name, []).append(
workflow_name
)
return web.json_response(workflow_templates_dict)
# Serve workflow templates from custom nodes.
for module_name, module_dir in loadedModules:
workflows_dir = os.path.join(module_dir, "example_workflows")
if os.path.exists(workflows_dir):
webapp.add_routes(
[
web.static(
"/api/workflow_templates/" + module_name, workflows_dir
)
]
)
@routes.get("/i18n")
async def get_i18n(request):
"""Returns translations from all custom nodes' locales folders."""
return web.json_response(self.build_translations())

View File

@ -3,69 +3,16 @@ import argparse
import logging
import os
import re
import sys
import tempfile
import zipfile
import importlib
from dataclasses import dataclass
from functools import cached_property
from pathlib import Path
from typing import TypedDict, Optional
from importlib.metadata import version
from typing import TypedDict
import requests
from typing_extensions import NotRequired
from comfy.cli_args import DEFAULT_VERSION_STRING
import app.logger
# The path to the requirements.txt file
req_path = Path(__file__).parents[1] / "requirements.txt"
def frontend_install_warning_message():
"""The warning message to display when the frontend version is not up to date."""
extra = ""
if sys.flags.no_user_site:
extra = "-s "
return f"""
Please install the updated requirements.txt file by running:
{sys.executable} {extra}-m pip install -r {req_path}
This error is happening because the ComfyUI frontend is no longer shipped as part of the main repo but as a pip package instead.
If you are on the portable package you can run: update\\update_comfyui.bat to solve this problem
""".strip()
def check_frontend_version():
"""Check if the frontend version is up to date."""
def parse_version(version: str) -> tuple[int, int, int]:
return tuple(map(int, version.split(".")))
try:
frontend_version_str = version("comfyui-frontend-package")
frontend_version = parse_version(frontend_version_str)
with open(req_path, "r", encoding="utf-8") as f:
required_frontend = parse_version(f.readline().split("=")[-1])
if frontend_version < required_frontend:
app.logger.log_startup_warning(
f"""
________________________________________________________________________
WARNING WARNING WARNING WARNING WARNING
Installed frontend version {".".join(map(str, frontend_version))} is lower than the recommended version {".".join(map(str, required_frontend))}.
{frontend_install_warning_message()}
________________________________________________________________________
""".strip()
)
else:
logging.info("ComfyUI frontend version: {}".format(frontend_version_str))
except Exception as e:
logging.error(f"Failed to check frontend version: {e}")
REQUEST_TIMEOUT = 10 # seconds
@ -162,49 +109,9 @@ def download_release_asset_zip(release: Release, destination_path: str) -> None:
class FrontendManager:
DEFAULT_FRONTEND_PATH = str(Path(__file__).parents[1] / "web")
CUSTOM_FRONTENDS_ROOT = str(Path(__file__).parents[1] / "web_custom_versions")
@classmethod
def default_frontend_path(cls) -> str:
try:
import comfyui_frontend_package
return str(importlib.resources.files(comfyui_frontend_package) / "static")
except ImportError:
logging.error(
f"""
********** ERROR ***********
comfyui-frontend-package is not installed.
{frontend_install_warning_message()}
********** ERROR ***********
""".strip()
)
sys.exit(-1)
@classmethod
def templates_path(cls) -> str:
try:
import comfyui_workflow_templates
return str(
importlib.resources.files(comfyui_workflow_templates) / "templates"
)
except ImportError:
logging.error(
f"""
********** ERROR ***********
comfyui-workflow-templates is not installed.
{frontend_install_warning_message()}
********** ERROR ***********
""".strip()
)
@classmethod
def parse_version_string(cls, value: str) -> tuple[str, str, str]:
"""
@ -225,15 +132,12 @@ comfyui-workflow-templates is not installed.
return match_result.group(1), match_result.group(2), match_result.group(3)
@classmethod
def init_frontend_unsafe(
cls, version_string: str, provider: Optional[FrontEndProvider] = None
) -> str:
def init_frontend_unsafe(cls, version_string: str) -> str:
"""
Initializes the frontend for the specified version.
Args:
version_string (str): The version string.
provider (FrontEndProvider, optional): The provider to use. Defaults to None.
Returns:
str: The path to the initialized frontend.
@ -243,28 +147,10 @@ comfyui-workflow-templates is not installed.
main error source might be request timeout or invalid URL.
"""
if version_string == DEFAULT_VERSION_STRING:
check_frontend_version()
return cls.default_frontend_path()
return cls.DEFAULT_FRONTEND_PATH
repo_owner, repo_name, version = cls.parse_version_string(version_string)
if version.startswith("v"):
expected_path = str(
Path(cls.CUSTOM_FRONTENDS_ROOT)
/ f"{repo_owner}_{repo_name}"
/ version.lstrip("v")
)
if os.path.exists(expected_path):
logging.info(
f"Using existing copy of specific frontend version tag: {repo_owner}/{repo_name}@{version}"
)
return expected_path
logging.info(
f"Initializing frontend: {repo_owner}/{repo_name}@{version}, requesting version details from GitHub..."
)
provider = provider or FrontEndProvider(repo_owner, repo_name)
provider = FrontEndProvider(repo_owner, repo_name)
release = provider.get_release(version)
semantic_version = release["tag_name"].lstrip("v")
@ -272,7 +158,6 @@ comfyui-workflow-templates is not installed.
Path(cls.CUSTOM_FRONTENDS_ROOT) / provider.folder_name / semantic_version
)
if not os.path.exists(web_root):
try:
os.makedirs(web_root, exist_ok=True)
logging.info(
"Downloading frontend(%s) version(%s) to (%s)",
@ -282,11 +167,6 @@ comfyui-workflow-templates is not installed.
)
logging.debug(release)
download_release_asset_zip(release, destination_path=web_root)
finally:
# Clean up the directory if it is empty, i.e. the download failed
if not os.listdir(web_root):
os.rmdir(web_root)
return web_root
@classmethod
@ -305,5 +185,4 @@ comfyui-workflow-templates is not installed.
except Exception as e:
logging.error("Failed to initialize frontend: %s", e)
logging.info("Falling back to the default frontend.")
check_frontend_version()
return cls.default_frontend_path()
return cls.DEFAULT_FRONTEND_PATH

View File

@ -1,98 +0,0 @@
from collections import deque
from datetime import datetime
import io
import logging
import sys
import threading
logs = None
stdout_interceptor = None
stderr_interceptor = None
class LogInterceptor(io.TextIOWrapper):
def __init__(self, stream, *args, **kwargs):
buffer = stream.buffer
encoding = stream.encoding
super().__init__(buffer, *args, **kwargs, encoding=encoding, line_buffering=stream.line_buffering)
self._lock = threading.Lock()
self._flush_callbacks = []
self._logs_since_flush = []
def write(self, data):
entry = {"t": datetime.now().isoformat(), "m": data}
with self._lock:
self._logs_since_flush.append(entry)
# Simple handling for cr to overwrite the last output if it isnt a full line
# else logs just get full of progress messages
if isinstance(data, str) and data.startswith("\r") and not logs[-1]["m"].endswith("\n"):
logs.pop()
logs.append(entry)
super().write(data)
def flush(self):
super().flush()
for cb in self._flush_callbacks:
cb(self._logs_since_flush)
self._logs_since_flush = []
def on_flush(self, callback):
self._flush_callbacks.append(callback)
def get_logs():
return logs
def on_flush(callback):
if stdout_interceptor is not None:
stdout_interceptor.on_flush(callback)
if stderr_interceptor is not None:
stderr_interceptor.on_flush(callback)
def setup_logger(log_level: str = 'INFO', capacity: int = 300, use_stdout: bool = False):
global logs
if logs:
return
# Override output streams and log to buffer
logs = deque(maxlen=capacity)
global stdout_interceptor
global stderr_interceptor
stdout_interceptor = sys.stdout = LogInterceptor(sys.stdout)
stderr_interceptor = sys.stderr = LogInterceptor(sys.stderr)
# Setup default global logger
logger = logging.getLogger()
logger.setLevel(log_level)
stream_handler = logging.StreamHandler()
stream_handler.setFormatter(logging.Formatter("%(message)s"))
if use_stdout:
# Only errors and critical to stderr
stream_handler.addFilter(lambda record: not record.levelno < logging.ERROR)
# Lesser to stdout
stdout_handler = logging.StreamHandler(sys.stdout)
stdout_handler.setFormatter(logging.Formatter("%(message)s"))
stdout_handler.addFilter(lambda record: record.levelno < logging.ERROR)
logger.addHandler(stdout_handler)
logger.addHandler(stream_handler)
STARTUP_WARNINGS = []
def log_startup_warning(msg):
logging.warning(msg)
STARTUP_WARNINGS.append(msg)
def print_startup_warnings():
for s in STARTUP_WARNINGS:
logging.warning(s)
STARTUP_WARNINGS.clear()

View File

@ -1,184 +0,0 @@
from __future__ import annotations
import os
import base64
import json
import time
import logging
import folder_paths
import glob
import comfy.utils
from aiohttp import web
from PIL import Image
from io import BytesIO
from folder_paths import map_legacy, filter_files_extensions, filter_files_content_types
class ModelFileManager:
def __init__(self) -> None:
self.cache: dict[str, tuple[list[dict], dict[str, float], float]] = {}
def get_cache(self, key: str, default=None) -> tuple[list[dict], dict[str, float], float] | None:
return self.cache.get(key, default)
def set_cache(self, key: str, value: tuple[list[dict], dict[str, float], float]):
self.cache[key] = value
def clear_cache(self):
self.cache.clear()
def add_routes(self, routes):
# NOTE: This is an experiment to replace `/models`
@routes.get("/experiment/models")
async def get_model_folders(request):
model_types = list(folder_paths.folder_names_and_paths.keys())
folder_black_list = ["configs", "custom_nodes"]
output_folders: list[dict] = []
for folder in model_types:
if folder in folder_black_list:
continue
output_folders.append({"name": folder, "folders": folder_paths.get_folder_paths(folder)})
return web.json_response(output_folders)
# NOTE: This is an experiment to replace `/models/{folder}`
@routes.get("/experiment/models/{folder}")
async def get_all_models(request):
folder = request.match_info.get("folder", None)
if not folder in folder_paths.folder_names_and_paths:
return web.Response(status=404)
files = self.get_model_file_list(folder)
return web.json_response(files)
@routes.get("/experiment/models/preview/{folder}/{path_index}/{filename:.*}")
async def get_model_preview(request):
folder_name = request.match_info.get("folder", None)
path_index = int(request.match_info.get("path_index", None))
filename = request.match_info.get("filename", None)
if not folder_name in folder_paths.folder_names_and_paths:
return web.Response(status=404)
folders = folder_paths.folder_names_and_paths[folder_name]
folder = folders[0][path_index]
full_filename = os.path.join(folder, filename)
previews = self.get_model_previews(full_filename)
default_preview = previews[0] if len(previews) > 0 else None
if default_preview is None or (isinstance(default_preview, str) and not os.path.isfile(default_preview)):
return web.Response(status=404)
try:
with Image.open(default_preview) as img:
img_bytes = BytesIO()
img.save(img_bytes, format="WEBP")
img_bytes.seek(0)
return web.Response(body=img_bytes.getvalue(), content_type="image/webp")
except:
return web.Response(status=404)
def get_model_file_list(self, folder_name: str):
folder_name = map_legacy(folder_name)
folders = folder_paths.folder_names_and_paths[folder_name]
output_list: list[dict] = []
for index, folder in enumerate(folders[0]):
if not os.path.isdir(folder):
continue
out = self.cache_model_file_list_(folder)
if out is None:
out = self.recursive_search_models_(folder, index)
self.set_cache(folder, out)
output_list.extend(out[0])
return output_list
def cache_model_file_list_(self, folder: str):
model_file_list_cache = self.get_cache(folder)
if model_file_list_cache is None:
return None
if not os.path.isdir(folder):
return None
if os.path.getmtime(folder) != model_file_list_cache[1]:
return None
for x in model_file_list_cache[1]:
time_modified = model_file_list_cache[1][x]
folder = x
if os.path.getmtime(folder) != time_modified:
return None
return model_file_list_cache
def recursive_search_models_(self, directory: str, pathIndex: int) -> tuple[list[str], dict[str, float], float]:
if not os.path.isdir(directory):
return [], {}, time.perf_counter()
excluded_dir_names = [".git"]
# TODO use settings
include_hidden_files = False
result: list[str] = []
dirs: dict[str, float] = {}
for dirpath, subdirs, filenames in os.walk(directory, followlinks=True, topdown=True):
subdirs[:] = [d for d in subdirs if d not in excluded_dir_names]
if not include_hidden_files:
subdirs[:] = [d for d in subdirs if not d.startswith(".")]
filenames = [f for f in filenames if not f.startswith(".")]
filenames = filter_files_extensions(filenames, folder_paths.supported_pt_extensions)
for file_name in filenames:
try:
relative_path = os.path.relpath(os.path.join(dirpath, file_name), directory)
result.append(relative_path)
except:
logging.warning(f"Warning: Unable to access {file_name}. Skipping this file.")
continue
for d in subdirs:
path: str = os.path.join(dirpath, d)
try:
dirs[path] = os.path.getmtime(path)
except FileNotFoundError:
logging.warning(f"Warning: Unable to access {path}. Skipping this path.")
continue
return [{"name": f, "pathIndex": pathIndex} for f in result], dirs, time.perf_counter()
def get_model_previews(self, filepath: str) -> list[str | BytesIO]:
dirname = os.path.dirname(filepath)
if not os.path.exists(dirname):
return []
basename = os.path.splitext(filepath)[0]
match_files = glob.glob(f"{basename}.*", recursive=False)
image_files = filter_files_content_types(match_files, "image")
safetensors_file = next(filter(lambda x: x.endswith(".safetensors"), match_files), None)
safetensors_metadata = {}
result: list[str | BytesIO] = []
for filename in image_files:
_basename = os.path.splitext(filename)[0]
if _basename == basename:
result.append(filename)
if _basename == f"{basename}.preview":
result.append(filename)
if safetensors_file:
safetensors_filepath = os.path.join(dirname, safetensors_file)
header = comfy.utils.safetensors_header(safetensors_filepath, max_size=8*1024*1024)
if header:
safetensors_metadata = json.loads(header)
safetensors_images = safetensors_metadata.get("__metadata__", {}).get("ssmd_cover_images", None)
if safetensors_images:
safetensors_images = json.loads(safetensors_images)
for image in safetensors_images:
result.append(BytesIO(base64.b64decode(image)))
return result
def __exit__(self, exc_type, exc_value, traceback):
self.clear_cache()

View File

@ -1,58 +1,38 @@
from __future__ import annotations
import json
import os
import re
import uuid
import glob
import shutil
import logging
from aiohttp import web
from urllib import parse
from comfy.cli_args import args
import folder_paths
from folder_paths import user_directory
from .app_settings import AppSettings
from typing import TypedDict
default_user = "default"
class FileInfo(TypedDict):
path: str
size: int
modified: int
def get_file_info(path: str, relative_to: str) -> FileInfo:
return {
"path": os.path.relpath(path, relative_to).replace(os.sep, '/'),
"size": os.path.getsize(path),
"modified": os.path.getmtime(path)
}
users_file = os.path.join(user_directory, "users.json")
class UserManager():
def __init__(self):
user_directory = folder_paths.get_user_directory()
global user_directory
self.settings = AppSettings(self)
if not os.path.exists(user_directory):
os.makedirs(user_directory, exist_ok=True)
os.mkdir(user_directory)
if not args.multi_user:
logging.warning("****** User settings have been changed to be stored on the server instead of browser storage. ******")
logging.warning("****** For multi-user setups add the --multi-user CLI argument to enable multiple user profiles. ******")
print("****** User settings have been changed to be stored on the server instead of browser storage. ******")
print("****** For multi-user setups add the --multi-user CLI argument to enable multiple user profiles. ******")
if args.multi_user:
if os.path.isfile(self.get_users_file()):
with open(self.get_users_file()) as f:
if os.path.isfile(users_file):
with open(users_file) as f:
self.users = json.load(f)
else:
self.users = {}
else:
self.users = {"default": "default"}
def get_users_file(self):
return os.path.join(folder_paths.get_user_directory(), "users.json")
def get_request_user_id(self, request):
user = "default"
if args.multi_user and "comfy-user" in request.headers:
@ -64,7 +44,7 @@ class UserManager():
return user
def get_request_user_filepath(self, request, file, type="userdata", create_dir=True):
user_directory = folder_paths.get_user_directory()
global user_directory
if type == "userdata":
root_dir = user_directory
@ -79,10 +59,6 @@ class UserManager():
return None
if file is not None:
# Check if filename is url encoded
if "%" in file:
file = parse.unquote(file)
# prevent leaving /{type}/{user}
path = os.path.abspath(os.path.join(user_root, file))
if os.path.commonpath((user_root, path)) != user_root:
@ -104,7 +80,8 @@ class UserManager():
self.users[user_id] = name
with open(self.get_users_file(), "w") as f:
global users_file
with open(users_file, "w") as f:
json.dump(self.users, f)
return user_id
@ -135,65 +112,25 @@ class UserManager():
@routes.get("/userdata")
async def listuserdata(request):
"""
List user data files in a specified directory.
This endpoint allows listing files in a user's data directory, with options for recursion,
full file information, and path splitting.
Query Parameters:
- dir (required): The directory to list files from.
- recurse (optional): If "true", recursively list files in subdirectories.
- full_info (optional): If "true", return detailed file information (path, size, modified time).
- split (optional): If "true", split file paths into components (only applies when full_info is false).
Returns:
- 400: If 'dir' parameter is missing.
- 403: If the requested path is not allowed.
- 404: If the requested directory does not exist.
- 200: JSON response with the list of files or file information.
The response format depends on the query parameters:
- Default: List of relative file paths.
- full_info=true: List of dictionaries with file details.
- split=true (and full_info=false): List of lists, each containing path components.
"""
directory = request.rel_url.query.get('dir', '')
if not directory:
return web.Response(status=400, text="Directory not provided")
return web.Response(status=400)
path = self.get_request_user_filepath(request, directory)
if not path:
return web.Response(status=403, text="Invalid directory")
return web.Response(status=403)
if not os.path.exists(path):
return web.Response(status=404, text="Directory not found")
return web.Response(status=404)
recurse = request.rel_url.query.get('recurse', '').lower() == "true"
full_info = request.rel_url.query.get('full_info', '').lower() == "true"
results = glob.glob(os.path.join(
glob.escape(path), '**/*'), recursive=recurse)
results = [os.path.relpath(x, path) for x in results if os.path.isfile(x)]
split_path = request.rel_url.query.get('split', '').lower() == "true"
# Use different patterns based on whether we're recursing or not
if recurse:
pattern = os.path.join(glob.escape(path), '**', '*')
else:
pattern = os.path.join(glob.escape(path), '*')
def process_full_path(full_path: str) -> FileInfo | str | list[str]:
if full_info:
return get_file_info(full_path, path)
rel_path = os.path.relpath(full_path, path).replace(os.sep, '/')
if split_path:
return [rel_path] + rel_path.split('/')
return rel_path
results = [
process_full_path(full_path)
for full_path in glob.glob(pattern, recursive=recurse)
if os.path.isfile(full_path)
]
results = [[x] + x.split(os.sep) for x in results]
return web.json_response(results)
@ -221,51 +158,20 @@ class UserManager():
@routes.post("/userdata/{file}")
async def post_userdata(request):
"""
Upload or update a user data file.
This endpoint handles file uploads to a user's data directory, with options for
controlling overwrite behavior and response format.
Query Parameters:
- overwrite (optional): If "false", prevents overwriting existing files. Defaults to "true".
- full_info (optional): If "true", returns detailed file information (path, size, modified time).
If "false", returns only the relative file path.
Path Parameters:
- file: The target file path (URL encoded if necessary).
Returns:
- 400: If 'file' parameter is missing.
- 403: If the requested path is not allowed.
- 409: If overwrite=false and the file already exists.
- 200: JSON response with either:
- Full file information (if full_info=true)
- Relative file path (if full_info=false)
The request body should contain the raw file content to be written.
"""
path = get_user_data_path(request)
if not isinstance(path, str):
return path
overwrite = request.query.get("overwrite", 'true') != "false"
full_info = request.query.get('full_info', 'false').lower() == "true"
overwrite = request.query["overwrite"] != "false"
if not overwrite and os.path.exists(path):
return web.Response(status=409, text="File already exists")
return web.Response(status=409)
body = await request.read()
with open(path, "wb") as f:
f.write(body)
user_path = self.get_request_user_filepath(request, None)
if full_info:
resp = get_file_info(path, user_path)
else:
resp = os.path.relpath(path, user_path)
resp = os.path.relpath(path, self.get_request_user_filepath(request, None))
return web.json_response(resp)
@routes.delete("/userdata/{file}")
@ -280,30 +186,6 @@ class UserManager():
@routes.post("/userdata/{file}/move/{dest}")
async def move_userdata(request):
"""
Move or rename a user data file.
This endpoint handles moving or renaming files within a user's data directory, with options for
controlling overwrite behavior and response format.
Path Parameters:
- file: The source file path (URL encoded if necessary)
- dest: The destination file path (URL encoded if necessary)
Query Parameters:
- overwrite (optional): If "false", prevents overwriting existing files. Defaults to "true".
- full_info (optional): If "true", returns detailed file information (path, size, modified time).
If "false", returns only the relative file path.
Returns:
- 400: If either 'file' or 'dest' parameter is missing
- 403: If either requested path is not allowed
- 404: If the source file does not exist
- 409: If overwrite=false and the destination file already exists
- 200: JSON response with either:
- Full file information (if full_info=true)
- Relative file path (if full_info=false)
"""
source = get_user_data_path(request, check_exists=True)
if not isinstance(source, str):
return source
@ -312,19 +194,12 @@ class UserManager():
if not isinstance(source, str):
return dest
overwrite = request.query.get("overwrite", 'true') != "false"
full_info = request.query.get('full_info', 'false').lower() == "true"
overwrite = request.query["overwrite"] != "false"
if not overwrite and os.path.exists(dest):
return web.Response(status=409, text="File already exists")
return web.Response(status=409)
logging.info(f"moving '{source}' -> '{dest}'")
print(f"moving '{source}' -> '{dest}'")
shutil.move(source, dest)
user_path = self.get_request_user_filepath(request, None)
if full_info:
resp = get_file_info(dest, user_path)
else:
resp = os.path.relpath(dest, user_path)
resp = os.path.relpath(dest, self.get_request_user_filepath(request, None))
return web.json_response(resp)

View File

@ -2,9 +2,11 @@
#and modified
import torch
import torch as th
import torch.nn as nn
from ..ldm.modules.diffusionmodules.util import (
zero_module,
timestep_embedding,
)
@ -160,6 +162,7 @@ class ControlNet(nn.Module):
if isinstance(self.num_classes, int):
self.label_emb = nn.Embedding(num_classes, time_embed_dim)
elif self.num_classes == "continuous":
print("setting up linear c_adm embedding layer")
self.label_emb = nn.Linear(1, time_embed_dim)
elif self.num_classes == "sequential":
assert adm_in_channels is not None
@ -412,6 +415,7 @@ class ControlNet(nn.Module):
out_output = []
out_middle = []
hs = []
if self.num_classes is not None:
assert y.shape[0] == x.shape[0]
emb = emb + self.label_emb(y)

View File

@ -1,120 +0,0 @@
import math
from typing import List, Optional, Tuple
import torch
import torch.nn as nn
from torch import Tensor
from comfy.ldm.modules.diffusionmodules.mmdit import DismantledBlock, PatchEmbed, VectorEmbedder, TimestepEmbedder, get_2d_sincos_pos_embed_torch
class ControlNetEmbedder(nn.Module):
def __init__(
self,
img_size: int,
patch_size: int,
in_chans: int,
attention_head_dim: int,
num_attention_heads: int,
adm_in_channels: int,
num_layers: int,
main_model_double: int,
double_y_emb: bool,
device: torch.device,
dtype: torch.dtype,
pos_embed_max_size: Optional[int] = None,
operations = None,
):
super().__init__()
self.main_model_double = main_model_double
self.dtype = dtype
self.hidden_size = num_attention_heads * attention_head_dim
self.patch_size = patch_size
self.x_embedder = PatchEmbed(
img_size=img_size,
patch_size=patch_size,
in_chans=in_chans,
embed_dim=self.hidden_size,
strict_img_size=pos_embed_max_size is None,
device=device,
dtype=dtype,
operations=operations,
)
self.t_embedder = TimestepEmbedder(self.hidden_size, dtype=dtype, device=device, operations=operations)
self.double_y_emb = double_y_emb
if self.double_y_emb:
self.orig_y_embedder = VectorEmbedder(
adm_in_channels, self.hidden_size, dtype, device, operations=operations
)
self.y_embedder = VectorEmbedder(
self.hidden_size, self.hidden_size, dtype, device, operations=operations
)
else:
self.y_embedder = VectorEmbedder(
adm_in_channels, self.hidden_size, dtype, device, operations=operations
)
self.transformer_blocks = nn.ModuleList(
DismantledBlock(
hidden_size=self.hidden_size, num_heads=num_attention_heads, qkv_bias=True,
dtype=dtype, device=device, operations=operations
)
for _ in range(num_layers)
)
# self.use_y_embedder = pooled_projection_dim != self.time_text_embed.text_embedder.linear_1.in_features
# TODO double check this logic when 8b
self.use_y_embedder = True
self.controlnet_blocks = nn.ModuleList([])
for _ in range(len(self.transformer_blocks)):
controlnet_block = operations.Linear(self.hidden_size, self.hidden_size, dtype=dtype, device=device)
self.controlnet_blocks.append(controlnet_block)
self.pos_embed_input = PatchEmbed(
img_size=img_size,
patch_size=patch_size,
in_chans=in_chans,
embed_dim=self.hidden_size,
strict_img_size=False,
device=device,
dtype=dtype,
operations=operations,
)
def forward(
self,
x: torch.Tensor,
timesteps: torch.Tensor,
y: Optional[torch.Tensor] = None,
context: Optional[torch.Tensor] = None,
hint = None,
) -> Tuple[Tensor, List[Tensor]]:
x_shape = list(x.shape)
x = self.x_embedder(x)
if not self.double_y_emb:
h = (x_shape[-2] + 1) // self.patch_size
w = (x_shape[-1] + 1) // self.patch_size
x += get_2d_sincos_pos_embed_torch(self.hidden_size, w, h, device=x.device)
c = self.t_embedder(timesteps, dtype=x.dtype)
if y is not None and self.y_embedder is not None:
if self.double_y_emb:
y = self.orig_y_embedder(y)
y = self.y_embedder(y)
c = c + y
x = x + self.pos_embed_input(hint)
block_out = ()
repeat = math.ceil(self.main_model_double / len(self.transformer_blocks))
for i in range(len(self.transformer_blocks)):
out = self.transformer_blocks[i](x, c)
if not self.double_y_emb:
x = out
block_out += (self.controlnet_blocks[i](out),) * repeat
return {"output": block_out}

View File

@ -1,12 +1,11 @@
import torch
from typing import Optional
from typing import Dict, Optional
import comfy.ldm.modules.diffusionmodules.mmdit
class ControlNet(comfy.ldm.modules.diffusionmodules.mmdit.MMDiT):
def __init__(
self,
num_blocks = None,
control_latent_channels = None,
dtype = None,
device = None,
operations = None,
@ -18,13 +17,10 @@ class ControlNet(comfy.ldm.modules.diffusionmodules.mmdit.MMDiT):
for _ in range(len(self.joint_blocks)):
self.controlnet_blocks.append(operations.Linear(self.hidden_size, self.hidden_size, device=device, dtype=dtype))
if control_latent_channels is None:
control_latent_channels = self.in_channels
self.pos_embed_input = comfy.ldm.modules.diffusionmodules.mmdit.PatchEmbed(
None,
self.patch_size,
control_latent_channels,
self.in_channels,
self.hidden_size,
bias=True,
strict_img_size=False,

View File

@ -1,6 +1,7 @@
import argparse
import enum
import os
from typing import Optional
import comfy.options
@ -35,18 +36,17 @@ class EnumAction(argparse.Action):
parser = argparse.ArgumentParser()
parser.add_argument("--listen", type=str, default="127.0.0.1", metavar="IP", nargs="?", const="0.0.0.0,::", help="Specify the IP address to listen on (default: 127.0.0.1). You can give a list of ip addresses by separating them with a comma like: 127.2.2.2,127.3.3.3 If --listen is provided without an argument, it defaults to 0.0.0.0,:: (listens on all ipv4 and ipv6)")
parser.add_argument("--listen", type=str, default="127.0.0.1", metavar="IP", nargs="?", const="0.0.0.0", help="Specify the IP address to listen on (default: 127.0.0.1). If --listen is provided without an argument, it defaults to 0.0.0.0. (listens on all)")
parser.add_argument("--port", type=int, default=8188, help="Set the listen port.")
parser.add_argument("--tls-keyfile", type=str, help="Path to TLS (SSL) key file. Enables TLS, makes app accessible at https://... requires --tls-certfile to function")
parser.add_argument("--tls-certfile", type=str, help="Path to TLS (SSL) certificate file. Enables TLS, makes app accessible at https://... requires --tls-keyfile to function")
parser.add_argument("--enable-cors-header", type=str, default=None, metavar="ORIGIN", nargs="?", const="*", help="Enable CORS (Cross-Origin Resource Sharing) with optional origin or allow all with default '*'.")
parser.add_argument("--max-upload-size", type=float, default=100, help="Set the maximum upload size in MB.")
parser.add_argument("--base-directory", type=str, default=None, help="Set the ComfyUI base directory for models, custom_nodes, input, output, temp, and user directories.")
parser.add_argument("--extra-model-paths-config", type=str, default=None, metavar="PATH", nargs='+', action='append', help="Load one or more extra_model_paths.yaml files.")
parser.add_argument("--output-directory", type=str, default=None, help="Set the ComfyUI output directory. Overrides --base-directory.")
parser.add_argument("--temp-directory", type=str, default=None, help="Set the ComfyUI temp directory (default is in the ComfyUI directory). Overrides --base-directory.")
parser.add_argument("--input-directory", type=str, default=None, help="Set the ComfyUI input directory. Overrides --base-directory.")
parser.add_argument("--output-directory", type=str, default=None, help="Set the ComfyUI output directory.")
parser.add_argument("--temp-directory", type=str, default=None, help="Set the ComfyUI temp directory (default is in the ComfyUI directory).")
parser.add_argument("--input-directory", type=str, default=None, help="Set the ComfyUI input directory.")
parser.add_argument("--auto-launch", action="store_true", help="Automatically launch ComfyUI in the default browser.")
parser.add_argument("--disable-auto-launch", action="store_true", help="Disable auto launching the browser.")
parser.add_argument("--cuda-device", type=int, default=None, metavar="DEVICE_ID", help="Set the id of the cuda device this instance will use.")
@ -60,10 +60,8 @@ fp_group.add_argument("--force-fp32", action="store_true", help="Force fp32 (If
fp_group.add_argument("--force-fp16", action="store_true", help="Force fp16.")
fpunet_group = parser.add_mutually_exclusive_group()
fpunet_group.add_argument("--fp32-unet", action="store_true", help="Run the diffusion model in fp32.")
fpunet_group.add_argument("--fp64-unet", action="store_true", help="Run the diffusion model in fp64.")
fpunet_group.add_argument("--bf16-unet", action="store_true", help="Run the diffusion model in bf16.")
fpunet_group.add_argument("--fp16-unet", action="store_true", help="Run the diffusion model in fp16")
fpunet_group.add_argument("--bf16-unet", action="store_true", help="Run the UNET in bf16. This should only be used for testing stuff.")
fpunet_group.add_argument("--fp16-unet", action="store_true", help="Store unet weights in fp16.")
fpunet_group.add_argument("--fp8_e4m3fn-unet", action="store_true", help="Store unet weights in fp8_e4m3fn.")
fpunet_group.add_argument("--fp8_e5m2-unet", action="store_true", help="Store unet weights in fp8_e5m2.")
@ -79,14 +77,12 @@ fpte_group.add_argument("--fp8_e4m3fn-text-enc", action="store_true", help="Stor
fpte_group.add_argument("--fp8_e5m2-text-enc", action="store_true", help="Store text encoder weights in fp8 (e5m2 variant).")
fpte_group.add_argument("--fp16-text-enc", action="store_true", help="Store text encoder weights in fp16.")
fpte_group.add_argument("--fp32-text-enc", action="store_true", help="Store text encoder weights in fp32.")
fpte_group.add_argument("--bf16-text-enc", action="store_true", help="Store text encoder weights in bf16.")
parser.add_argument("--force-channels-last", action="store_true", help="Force channels last format when inferencing the models.")
parser.add_argument("--directml", type=int, nargs="?", metavar="DIRECTML_DEVICE", const=-1, help="Use torch-directml.")
parser.add_argument("--oneapi-device-selector", type=str, default=None, metavar="SELECTOR_STRING", help="Sets the oneAPI device(s) this instance will use.")
parser.add_argument("--disable-ipex-optimize", action="store_true", help="Disables ipex.optimize default when loading models with Intel's Extension for Pytorch.")
parser.add_argument("--disable-ipex-optimize", action="store_true", help="Disables ipex.optimize when loading models with Intel GPUs.")
class LatentPreviewMethod(enum.Enum):
NoPreviews = "none"
@ -96,19 +92,10 @@ class LatentPreviewMethod(enum.Enum):
parser.add_argument("--preview-method", type=LatentPreviewMethod, default=LatentPreviewMethod.NoPreviews, help="Default preview method for sampler nodes.", action=EnumAction)
parser.add_argument("--preview-size", type=int, default=512, help="Sets the maximum preview size for sampler nodes.")
cache_group = parser.add_mutually_exclusive_group()
cache_group.add_argument("--cache-classic", action="store_true", help="Use the old style (aggressive) caching.")
cache_group.add_argument("--cache-lru", type=int, default=0, help="Use LRU caching with a maximum of N node results cached. May use more RAM/VRAM.")
cache_group.add_argument("--cache-none", action="store_true", help="Reduced RAM/VRAM usage at the expense of executing every node for each run.")
attn_group = parser.add_mutually_exclusive_group()
attn_group.add_argument("--use-split-cross-attention", action="store_true", help="Use the split cross attention optimization. Ignored when xformers is used.")
attn_group.add_argument("--use-quad-cross-attention", action="store_true", help="Use the sub-quadratic cross attention optimization . Ignored when xformers is used.")
attn_group.add_argument("--use-pytorch-cross-attention", action="store_true", help="Use the new pytorch 2.0 cross attention function.")
attn_group.add_argument("--use-sage-attention", action="store_true", help="Use sage attention.")
attn_group.add_argument("--use-flash-attention", action="store_true", help="Use FlashAttention.")
parser.add_argument("--disable-xformers", action="store_true", help="Disable xformers.")
@ -125,21 +112,11 @@ vram_group.add_argument("--lowvram", action="store_true", help="Split the unet i
vram_group.add_argument("--novram", action="store_true", help="When lowvram isn't enough.")
vram_group.add_argument("--cpu", action="store_true", help="To use the CPU for everything (slow).")
parser.add_argument("--reserve-vram", type=float, default=None, help="Set the amount of vram in GB you want to reserve for use by your OS/other software. By default some amount is reserved depending on your OS.")
parser.add_argument("--default-hashing-function", type=str, choices=['md5', 'sha1', 'sha256', 'sha512'], default='sha256', help="Allows you to choose the hash function to use for duplicate filename / contents comparison. Default is sha256.")
parser.add_argument("--disable-smart-memory", action="store_true", help="Force ComfyUI to agressively offload to regular ram instead of keeping models in vram when it can.")
parser.add_argument("--deterministic", action="store_true", help="Make pytorch use slower deterministic algorithms when it can. Note that this might not make images deterministic in all cases.")
class PerformanceFeature(enum.Enum):
Fp16Accumulation = "fp16_accumulation"
Fp8MatrixMultiplication = "fp8_matrix_mult"
CublasOps = "cublas_ops"
parser.add_argument("--fast", nargs="*", type=PerformanceFeature, help="Enable some untested and potentially quality deteriorating optimizations. --fast with no arguments enables everything. You can pass a list specific optimizations if you only want to enable specific ones. Current valid optimizations: fp16_accumulation fp8_matrix_mult cublas_ops")
parser.add_argument("--dont-print-server", action="store_true", help="Don't print server output.")
parser.add_argument("--quick-test-for-ci", action="store_true", help="Quick test for CI.")
parser.add_argument("--windows-standalone-build", action="store_true", help="Windows standalone build: Enable convenient things that most people using the standalone windows build will probably enjoy (like auto opening the page on startup).")
@ -149,8 +126,7 @@ parser.add_argument("--disable-all-custom-nodes", action="store_true", help="Dis
parser.add_argument("--multi-user", action="store_true", help="Enables per-user storage.")
parser.add_argument("--verbose", default='INFO', const='DEBUG', nargs="?", choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'], help='Set the logging level')
parser.add_argument("--log-stdout", action="store_true", help="Send normal process output to stdout instead of stderr (default).")
parser.add_argument("--verbose", action="store_true", help="Enables more debug prints.")
# The default built-in provider hosted under web/
DEFAULT_VERSION_STRING = "comfyanonymous/ComfyUI@latest"
@ -169,14 +145,13 @@ parser.add_argument(
""",
)
def is_valid_directory(path: str) -> str:
"""Validate if the given path is a directory, and check permissions."""
if not os.path.exists(path):
raise argparse.ArgumentTypeError(f"The path '{path}' does not exist.")
def is_valid_directory(path: Optional[str]) -> Optional[str]:
"""Validate if the given path is a directory."""
if path is None:
return None
if not os.path.isdir(path):
raise argparse.ArgumentTypeError(f"'{path}' is not a directory.")
if not os.access(path, os.R_OK):
raise argparse.ArgumentTypeError(f"You do not have read permissions for '{path}'.")
raise argparse.ArgumentTypeError(f"{path} is not a valid directory.")
return path
parser.add_argument(
@ -186,10 +161,6 @@ parser.add_argument(
help="The local filesystem path to the directory where the frontend is located. Overrides --front-end-version.",
)
parser.add_argument("--user-directory", type=is_valid_directory, default=None, help="Set the ComfyUI user directory with an absolute path. Overrides --base-directory.")
parser.add_argument("--enable-compress-response-body", action="store_true", help="Enable compressing response body.")
if comfy.options.args_parsing:
args = parser.parse_args()
else:
@ -201,16 +172,9 @@ if args.windows_standalone_build:
if args.disable_auto_launch:
args.auto_launch = False
if args.force_fp16:
args.fp16_unet = True
import logging
logging_level = logging.INFO
if args.verbose:
logging_level = logging.DEBUG
# '--fast' is not provided, use an empty set
if args.fast is None:
args.fast = set()
# '--fast' is provided with an empty list, enable all optimizations
elif args.fast == []:
args.fast = set(PerformanceFeature)
# '--fast' is provided with a list of performance features, use that list
else:
args.fast = set(args.fast)
logging.basicConfig(format="%(message)s", level=logging_level)

View File

@ -23,7 +23,6 @@ class CLIPAttention(torch.nn.Module):
ACTIVATIONS = {"quick_gelu": lambda a: a * torch.sigmoid(1.702 * a),
"gelu": torch.nn.functional.gelu,
"gelu_pytorch_tanh": lambda a: torch.nn.functional.gelu(a, approximate="tanh"),
}
class CLIPMLP(torch.nn.Module):
@ -89,27 +88,21 @@ class CLIPTextModel_(torch.nn.Module):
heads = config_dict["num_attention_heads"]
intermediate_size = config_dict["intermediate_size"]
intermediate_activation = config_dict["hidden_act"]
num_positions = config_dict["max_position_embeddings"]
self.eos_token_id = config_dict["eos_token_id"]
super().__init__()
self.embeddings = CLIPEmbeddings(embed_dim, num_positions=num_positions, dtype=dtype, device=device, operations=operations)
self.embeddings = CLIPEmbeddings(embed_dim, dtype=dtype, device=device, operations=operations)
self.encoder = CLIPEncoder(num_layers, embed_dim, heads, intermediate_size, intermediate_activation, dtype, device, operations)
self.final_layer_norm = operations.LayerNorm(embed_dim, dtype=dtype, device=device)
def forward(self, input_tokens=None, attention_mask=None, embeds=None, num_tokens=None, intermediate_output=None, final_layer_norm_intermediate=True, dtype=torch.float32):
if embeds is not None:
x = embeds + comfy.ops.cast_to(self.embeddings.position_embedding.weight, dtype=dtype, device=embeds.device)
else:
def forward(self, input_tokens, attention_mask=None, intermediate_output=None, final_layer_norm_intermediate=True, dtype=torch.float32):
x = self.embeddings(input_tokens, dtype=dtype)
mask = None
if attention_mask is not None:
mask = 1.0 - attention_mask.to(x.dtype).reshape((attention_mask.shape[0], 1, -1, attention_mask.shape[-1])).expand(attention_mask.shape[0], 1, attention_mask.shape[-1], attention_mask.shape[-1])
mask = mask.masked_fill(mask.to(torch.bool), -torch.finfo(x.dtype).max)
causal_mask = torch.full((x.shape[1], x.shape[1]), -torch.finfo(x.dtype).max, dtype=x.dtype, device=x.device).triu_(1)
mask = mask.masked_fill(mask.to(torch.bool), float("-inf"))
causal_mask = torch.empty(x.shape[1], x.shape[1], dtype=x.dtype, device=x.device).fill_(float("-inf")).triu_(1)
if mask is not None:
mask += causal_mask
else:
@ -120,9 +113,6 @@ class CLIPTextModel_(torch.nn.Module):
if i is not None and final_layer_norm_intermediate:
i = self.final_layer_norm(i)
if num_tokens is not None:
pooled_output = x[list(range(x.shape[0])), list(map(lambda a: a - 1, num_tokens))]
else:
pooled_output = x[torch.arange(x.shape[0], device=x.device), (torch.round(input_tokens).to(dtype=torch.int, device=x.device) == self.eos_token_id).int().argmax(dim=-1),]
return x, i, pooled_output
@ -133,6 +123,7 @@ class CLIPTextModel(torch.nn.Module):
self.text_model = CLIPTextModel_(config_dict, dtype, device, operations)
embed_dim = config_dict["hidden_size"]
self.text_projection = operations.Linear(embed_dim, embed_dim, bias=False, dtype=dtype, device=device)
self.text_projection.weight.copy_(torch.eye(embed_dim))
self.dtype = dtype
def get_input_embeddings(self):
@ -148,35 +139,27 @@ class CLIPTextModel(torch.nn.Module):
class CLIPVisionEmbeddings(torch.nn.Module):
def __init__(self, embed_dim, num_channels=3, patch_size=14, image_size=224, model_type="", dtype=None, device=None, operations=None):
def __init__(self, embed_dim, num_channels=3, patch_size=14, image_size=224, dtype=None, device=None, operations=None):
super().__init__()
num_patches = (image_size // patch_size) ** 2
if model_type == "siglip_vision_model":
self.class_embedding = None
patch_bias = True
else:
num_patches = num_patches + 1
self.class_embedding = torch.nn.Parameter(torch.empty(embed_dim, dtype=dtype, device=device))
patch_bias = False
self.patch_embedding = operations.Conv2d(
in_channels=num_channels,
out_channels=embed_dim,
kernel_size=patch_size,
stride=patch_size,
bias=patch_bias,
bias=False,
dtype=dtype,
device=device
)
self.position_embedding = operations.Embedding(num_patches, embed_dim, dtype=dtype, device=device)
num_patches = (image_size // patch_size) ** 2
num_positions = num_patches + 1
self.position_embedding = operations.Embedding(num_positions, embed_dim, dtype=dtype, device=device)
def forward(self, pixel_values):
embeds = self.patch_embedding(pixel_values).flatten(2).transpose(1, 2)
if self.class_embedding is not None:
embeds = torch.cat([comfy.ops.cast_to_input(self.class_embedding, embeds).expand(pixel_values.shape[0], 1, -1), embeds], dim=1)
return embeds + comfy.ops.cast_to_input(self.position_embedding.weight, embeds)
return torch.cat([comfy.ops.cast_to_input(self.class_embedding, embeds).expand(pixel_values.shape[0], 1, -1), embeds], dim=1) + comfy.ops.cast_to_input(self.position_embedding.weight, embeds)
class CLIPVision(torch.nn.Module):
@ -187,15 +170,9 @@ class CLIPVision(torch.nn.Module):
heads = config_dict["num_attention_heads"]
intermediate_size = config_dict["intermediate_size"]
intermediate_activation = config_dict["hidden_act"]
model_type = config_dict["model_type"]
self.embeddings = CLIPVisionEmbeddings(embed_dim, config_dict["num_channels"], config_dict["patch_size"], config_dict["image_size"], model_type=model_type, dtype=dtype, device=device, operations=operations)
if model_type == "siglip_vision_model":
self.pre_layrnorm = lambda a: a
self.output_layernorm = True
else:
self.embeddings = CLIPVisionEmbeddings(embed_dim, config_dict["num_channels"], config_dict["patch_size"], config_dict["image_size"], dtype=dtype, device=device, operations=operations)
self.pre_layrnorm = operations.LayerNorm(embed_dim)
self.output_layernorm = False
self.encoder = CLIPEncoder(num_layers, embed_dim, heads, intermediate_size, intermediate_activation, dtype, device, operations)
self.post_layernorm = operations.LayerNorm(embed_dim)
@ -204,41 +181,16 @@ class CLIPVision(torch.nn.Module):
x = self.pre_layrnorm(x)
#TODO: attention_mask?
x, i = self.encoder(x, mask=None, intermediate_output=intermediate_output)
if self.output_layernorm:
x = self.post_layernorm(x)
pooled_output = x
else:
pooled_output = self.post_layernorm(x[:, 0, :])
return x, i, pooled_output
class LlavaProjector(torch.nn.Module):
def __init__(self, in_dim, out_dim, dtype, device, operations):
super().__init__()
self.linear_1 = operations.Linear(in_dim, out_dim, bias=True, device=device, dtype=dtype)
self.linear_2 = operations.Linear(out_dim, out_dim, bias=True, device=device, dtype=dtype)
def forward(self, x):
return self.linear_2(torch.nn.functional.gelu(self.linear_1(x[:, 1:])))
class CLIPVisionModelProjection(torch.nn.Module):
def __init__(self, config_dict, dtype, device, operations):
super().__init__()
self.vision_model = CLIPVision(config_dict, dtype, device, operations)
if "projection_dim" in config_dict:
self.visual_projection = operations.Linear(config_dict["hidden_size"], config_dict["projection_dim"], bias=False)
else:
self.visual_projection = lambda a: a
if "llava3" == config_dict.get("projector_type", None):
self.multi_modal_projector = LlavaProjector(config_dict["hidden_size"], 4096, dtype, device, operations)
else:
self.multi_modal_projector = None
def forward(self, *args, **kwargs):
x = self.vision_model(*args, **kwargs)
out = self.visual_projection(x[2])
projected = None
if self.multi_modal_projector is not None:
projected = self.multi_modal_projector(x[1])
return (x[0], x[1], out, projected)
return (x[0], x[1], out)

View File

@ -9,7 +9,6 @@ import comfy.model_patcher
import comfy.model_management
import comfy.utils
import comfy.clip_model
import comfy.image_encoders.dino2
class Output:
def __getitem__(self, key):
@ -17,43 +16,29 @@ class Output:
def __setitem__(self, key, item):
setattr(self, key, item)
def clip_preprocess(image, size=224, mean=[0.48145466, 0.4578275, 0.40821073], std=[0.26862954, 0.26130258, 0.27577711], crop=True):
mean = torch.tensor(mean, device=image.device, dtype=image.dtype)
std = torch.tensor(std, device=image.device, dtype=image.dtype)
def clip_preprocess(image, size=224):
mean = torch.tensor([ 0.48145466,0.4578275,0.40821073], device=image.device, dtype=image.dtype)
std = torch.tensor([0.26862954,0.26130258,0.27577711], device=image.device, dtype=image.dtype)
image = image.movedim(-1, 1)
if not (image.shape[2] == size and image.shape[3] == size):
if crop:
scale = (size / min(image.shape[2], image.shape[3]))
scale_size = (round(scale * image.shape[2]), round(scale * image.shape[3]))
else:
scale_size = (size, size)
image = torch.nn.functional.interpolate(image, size=scale_size, mode="bicubic", antialias=True)
image = torch.nn.functional.interpolate(image, size=(round(scale * image.shape[2]), round(scale * image.shape[3])), mode="bicubic", antialias=True)
h = (image.shape[2] - size)//2
w = (image.shape[3] - size)//2
image = image[:,:,h:h+size,w:w+size]
image = torch.clip((255. * image), 0, 255).round() / 255.0
return (image - mean.view([3,1,1])) / std.view([3,1,1])
IMAGE_ENCODERS = {
"clip_vision_model": comfy.clip_model.CLIPVisionModelProjection,
"siglip_vision_model": comfy.clip_model.CLIPVisionModelProjection,
"dinov2": comfy.image_encoders.dino2.Dinov2Model,
}
class ClipVisionModel():
def __init__(self, json_config):
with open(json_config) as f:
config = json.load(f)
self.image_size = config.get("image_size", 224)
self.image_mean = config.get("image_mean", [0.48145466, 0.4578275, 0.40821073])
self.image_std = config.get("image_std", [0.26862954, 0.26130258, 0.27577711])
model_class = IMAGE_ENCODERS.get(config.get("model_type", "clip_vision_model"))
self.load_device = comfy.model_management.text_encoder_device()
offload_device = comfy.model_management.text_encoder_offload_device()
self.dtype = comfy.model_management.text_encoder_dtype(self.load_device)
self.model = model_class(config, self.dtype, offload_device, comfy.ops.manual_cast)
self.model = comfy.clip_model.CLIPVisionModelProjection(config, self.dtype, offload_device, comfy.ops.manual_cast)
self.model.eval()
self.patcher = comfy.model_patcher.ModelPatcher(self.model, load_device=self.load_device, offload_device=offload_device)
@ -64,16 +49,15 @@ class ClipVisionModel():
def get_sd(self):
return self.model.state_dict()
def encode_image(self, image, crop=True):
def encode_image(self, image):
comfy.model_management.load_model_gpu(self.patcher)
pixel_values = clip_preprocess(image.to(self.load_device), size=self.image_size, mean=self.image_mean, std=self.image_std, crop=crop).float()
pixel_values = clip_preprocess(image.to(self.load_device), size=self.image_size).float()
out = self.model(pixel_values=pixel_values, intermediate_output=-2)
outputs = Output()
outputs["last_hidden_state"] = out[0].to(comfy.model_management.intermediate_device())
outputs["image_embeds"] = out[2].to(comfy.model_management.intermediate_device())
outputs["penultimate_hidden_states"] = out[1].to(comfy.model_management.intermediate_device())
outputs["mm_projected"] = out[3]
return outputs
def convert_to_transformers(sd, prefix):
@ -110,21 +94,10 @@ def load_clipvision_from_sd(sd, prefix="", convert_keys=False):
elif "vision_model.encoder.layers.30.layer_norm1.weight" in sd:
json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "clip_vision_config_h.json")
elif "vision_model.encoder.layers.22.layer_norm1.weight" in sd:
embed_shape = sd["vision_model.embeddings.position_embedding.weight"].shape[0]
if sd["vision_model.encoder.layers.0.layer_norm1.weight"].shape[0] == 1152:
if embed_shape == 729:
json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "clip_vision_siglip_384.json")
elif embed_shape == 1024:
json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "clip_vision_siglip_512.json")
elif embed_shape == 577:
if "multi_modal_projector.linear_1.bias" in sd:
json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "clip_vision_config_vitl_336_llava.json")
else:
if sd["vision_model.embeddings.position_embedding.weight"].shape[0] == 577:
json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "clip_vision_config_vitl_336.json")
else:
json_config = os.path.join(os.path.dirname(os.path.realpath(__file__)), "clip_vision_config_vitl.json")
elif "embeddings.patch_embeddings.projection.weight" in sd:
json_config = os.path.join(os.path.join(os.path.dirname(os.path.realpath(__file__)), "image_encoders"), "dino2_giant.json")
else:
return None
@ -136,7 +109,8 @@ def load_clipvision_from_sd(sd, prefix="", convert_keys=False):
keys = list(sd.keys())
for k in keys:
if k not in u:
sd.pop(k)
t = sd.pop(k)
del t
return clip
def load(ckpt_path):

View File

@ -1,19 +0,0 @@
{
"attention_dropout": 0.0,
"dropout": 0.0,
"hidden_act": "quick_gelu",
"hidden_size": 1024,
"image_size": 336,
"initializer_factor": 1.0,
"initializer_range": 0.02,
"intermediate_size": 4096,
"layer_norm_eps": 1e-5,
"model_type": "clip_vision_model",
"num_attention_heads": 16,
"num_channels": 3,
"num_hidden_layers": 24,
"patch_size": 14,
"projection_dim": 768,
"projector_type": "llava3",
"torch_dtype": "float32"
}

View File

@ -1,13 +0,0 @@
{
"num_channels": 3,
"hidden_act": "gelu_pytorch_tanh",
"hidden_size": 1152,
"image_size": 384,
"intermediate_size": 4304,
"model_type": "siglip_vision_model",
"num_attention_heads": 16,
"num_hidden_layers": 27,
"patch_size": 14,
"image_mean": [0.5, 0.5, 0.5],
"image_std": [0.5, 0.5, 0.5]
}

View File

@ -1,13 +0,0 @@
{
"num_channels": 3,
"hidden_act": "gelu_pytorch_tanh",
"hidden_size": 1152,
"image_size": 512,
"intermediate_size": 4304,
"model_type": "siglip_vision_model",
"num_attention_heads": 16,
"num_hidden_layers": 27,
"patch_size": 16,
"image_mean": [0.5, 0.5, 0.5],
"image_std": [0.5, 0.5, 0.5]
}

View File

@ -1,43 +0,0 @@
# Comfy Typing
## Type hinting for ComfyUI Node development
This module provides type hinting and concrete convenience types for node developers.
If cloned to the custom_nodes directory of ComfyUI, types can be imported using:
```python
from comfy.comfy_types import IO, ComfyNodeABC, CheckLazyMixin
class ExampleNode(ComfyNodeABC):
@classmethod
def INPUT_TYPES(s) -> InputTypeDict:
return {"required": {}}
```
Full example is in [examples/example_nodes.py](examples/example_nodes.py).
# Types
A few primary types are documented below. More complete information is available via the docstrings on each type.
## `IO`
A string enum of built-in and a few custom data types. Includes the following special types and their requisite plumbing:
- `ANY`: `"*"`
- `NUMBER`: `"FLOAT,INT"`
- `PRIMITIVE`: `"STRING,FLOAT,INT,BOOLEAN"`
## `ComfyNodeABC`
An abstract base class for nodes, offering type-hinting / autocomplete, and somewhat-alright docstrings.
### Type hinting for `INPUT_TYPES`
![INPUT_TYPES auto-completion in Visual Studio Code](examples/input_types.png)
### `INPUT_TYPES` return dict
![INPUT_TYPES return value type hinting in Visual Studio Code](examples/required_hint.png)
### Options for individual inputs
![INPUT_TYPES return value option auto-completion in Visual Studio Code](examples/input_options.png)

View File

@ -1,28 +0,0 @@
from comfy.comfy_types import IO, ComfyNodeABC, InputTypeDict
from inspect import cleandoc
class ExampleNode(ComfyNodeABC):
"""An example node that just adds 1 to an input integer.
* Requires a modern IDE to provide any benefit (detail: an IDE configured with analysis paths etc).
* This node is intended as an example for developers only.
"""
DESCRIPTION = cleandoc(__doc__)
CATEGORY = "examples"
@classmethod
def INPUT_TYPES(s) -> InputTypeDict:
return {
"required": {
"input_int": (IO.INT, {"defaultInput": True}),
}
}
RETURN_TYPES = (IO.INT,)
RETURN_NAMES = ("input_plus_one",)
FUNCTION = "execute"
def execute(self, input_int: int):
return (input_int + 1,)

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@ -1,336 +0,0 @@
"""Comfy-specific type hinting"""
from __future__ import annotations
from typing import Literal, TypedDict
from typing_extensions import NotRequired
from abc import ABC, abstractmethod
from enum import Enum
class StrEnum(str, Enum):
"""Base class for string enums. Python's StrEnum is not available until 3.11."""
def __str__(self) -> str:
return self.value
class IO(StrEnum):
"""Node input/output data types.
Includes functionality for ``"*"`` (`ANY`) and ``"MULTI,TYPES"``.
"""
STRING = "STRING"
IMAGE = "IMAGE"
MASK = "MASK"
LATENT = "LATENT"
BOOLEAN = "BOOLEAN"
INT = "INT"
FLOAT = "FLOAT"
COMBO = "COMBO"
CONDITIONING = "CONDITIONING"
SAMPLER = "SAMPLER"
SIGMAS = "SIGMAS"
GUIDER = "GUIDER"
NOISE = "NOISE"
CLIP = "CLIP"
CONTROL_NET = "CONTROL_NET"
VAE = "VAE"
MODEL = "MODEL"
CLIP_VISION = "CLIP_VISION"
CLIP_VISION_OUTPUT = "CLIP_VISION_OUTPUT"
STYLE_MODEL = "STYLE_MODEL"
GLIGEN = "GLIGEN"
UPSCALE_MODEL = "UPSCALE_MODEL"
AUDIO = "AUDIO"
WEBCAM = "WEBCAM"
POINT = "POINT"
FACE_ANALYSIS = "FACE_ANALYSIS"
BBOX = "BBOX"
SEGS = "SEGS"
ANY = "*"
"""Always matches any type, but at a price.
Causes some functionality issues (e.g. reroutes, link types), and should be avoided whenever possible.
"""
NUMBER = "FLOAT,INT"
"""A float or an int - could be either"""
PRIMITIVE = "STRING,FLOAT,INT,BOOLEAN"
"""Could be any of: string, float, int, or bool"""
def __ne__(self, value: object) -> bool:
if self == "*" or value == "*":
return False
if not isinstance(value, str):
return True
a = frozenset(self.split(","))
b = frozenset(value.split(","))
return not (b.issubset(a) or a.issubset(b))
class RemoteInputOptions(TypedDict):
route: str
"""The route to the remote source."""
refresh_button: bool
"""Specifies whether to show a refresh button in the UI below the widget."""
control_after_refresh: Literal["first", "last"]
"""Specifies the control after the refresh button is clicked. If "first", the first item will be automatically selected, and so on."""
timeout: int
"""The maximum amount of time to wait for a response from the remote source in milliseconds."""
max_retries: int
"""The maximum number of retries before aborting the request."""
refresh: int
"""The TTL of the remote input's value in milliseconds. Specifies the interval at which the remote input's value is refreshed."""
class MultiSelectOptions(TypedDict):
placeholder: NotRequired[str]
"""The placeholder text to display in the multi-select widget when no items are selected."""
chip: NotRequired[bool]
"""Specifies whether to use chips instead of comma separated values for the multi-select widget."""
class InputTypeOptions(TypedDict):
"""Provides type hinting for the return type of the INPUT_TYPES node function.
Due to IDE limitations with unions, for now all options are available for all types (e.g. `label_on` is hinted even when the type is not `IO.BOOLEAN`).
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/datatypes
"""
default: NotRequired[bool | str | float | int | list | tuple]
"""The default value of the widget"""
defaultInput: NotRequired[bool]
"""@deprecated in v1.16 frontend. v1.16 frontend allows input socket and widget to co-exist.
- defaultInput on required inputs should be dropped.
- defaultInput on optional inputs should be replaced with forceInput.
Ref: https://github.com/Comfy-Org/ComfyUI_frontend/pull/3364
"""
forceInput: NotRequired[bool]
"""Forces the input to be an input slot rather than a widget even a widget is available for the input type."""
lazy: NotRequired[bool]
"""Declares that this input uses lazy evaluation"""
rawLink: NotRequired[bool]
"""When a link exists, rather than receiving the evaluated value, you will receive the link (i.e. `["nodeId", <outputIndex>]`). Designed for node expansion."""
tooltip: NotRequired[str]
"""Tooltip for the input (or widget), shown on pointer hover"""
# class InputTypeNumber(InputTypeOptions):
# default: float | int
min: NotRequired[float]
"""The minimum value of a number (``FLOAT`` | ``INT``)"""
max: NotRequired[float]
"""The maximum value of a number (``FLOAT`` | ``INT``)"""
step: NotRequired[float]
"""The amount to increment or decrement a widget by when stepping up/down (``FLOAT`` | ``INT``)"""
round: NotRequired[float]
"""Floats are rounded by this value (``FLOAT``)"""
# class InputTypeBoolean(InputTypeOptions):
# default: bool
label_on: NotRequired[str]
"""The label to use in the UI when the bool is True (``BOOLEAN``)"""
label_off: NotRequired[str]
"""The label to use in the UI when the bool is False (``BOOLEAN``)"""
# class InputTypeString(InputTypeOptions):
# default: str
multiline: NotRequired[bool]
"""Use a multiline text box (``STRING``)"""
placeholder: NotRequired[str]
"""Placeholder text to display in the UI when empty (``STRING``)"""
# Deprecated:
# defaultVal: str
dynamicPrompts: NotRequired[bool]
"""Causes the front-end to evaluate dynamic prompts (``STRING``)"""
# class InputTypeCombo(InputTypeOptions):
image_upload: NotRequired[bool]
"""Specifies whether the input should have an image upload button and image preview attached to it. Requires that the input's name is `image`."""
image_folder: NotRequired[Literal["input", "output", "temp"]]
"""Specifies which folder to get preview images from if the input has the ``image_upload`` flag.
"""
remote: NotRequired[RemoteInputOptions]
"""Specifies the configuration for a remote input.
Available after ComfyUI frontend v1.9.7
https://github.com/Comfy-Org/ComfyUI_frontend/pull/2422"""
control_after_generate: NotRequired[bool]
"""Specifies whether a control widget should be added to the input, adding options to automatically change the value after each prompt is queued. Currently only used for INT and COMBO types."""
options: NotRequired[list[str | int | float]]
"""COMBO type only. Specifies the selectable options for the combo widget.
Prefer:
["COMBO", {"options": ["Option 1", "Option 2", "Option 3"]}]
Over:
[["Option 1", "Option 2", "Option 3"]]
"""
multi_select: NotRequired[MultiSelectOptions]
"""COMBO type only. Specifies the configuration for a multi-select widget.
Available after ComfyUI frontend v1.13.4
https://github.com/Comfy-Org/ComfyUI_frontend/pull/2987"""
class HiddenInputTypeDict(TypedDict):
"""Provides type hinting for the hidden entry of node INPUT_TYPES."""
node_id: NotRequired[Literal["UNIQUE_ID"]]
"""UNIQUE_ID is the unique identifier of the node, and matches the id property of the node on the client side. It is commonly used in client-server communications (see messages)."""
unique_id: NotRequired[Literal["UNIQUE_ID"]]
"""UNIQUE_ID is the unique identifier of the node, and matches the id property of the node on the client side. It is commonly used in client-server communications (see messages)."""
prompt: NotRequired[Literal["PROMPT"]]
"""PROMPT is the complete prompt sent by the client to the server. See the prompt object for a full description."""
extra_pnginfo: NotRequired[Literal["EXTRA_PNGINFO"]]
"""EXTRA_PNGINFO is a dictionary that will be copied into the metadata of any .png files saved. Custom nodes can store additional information in this dictionary for saving (or as a way to communicate with a downstream node)."""
dynprompt: NotRequired[Literal["DYNPROMPT"]]
"""DYNPROMPT is an instance of comfy_execution.graph.DynamicPrompt. It differs from PROMPT in that it may mutate during the course of execution in response to Node Expansion."""
class InputTypeDict(TypedDict):
"""Provides type hinting for node INPUT_TYPES.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/more_on_inputs
"""
required: NotRequired[dict[str, tuple[IO, InputTypeOptions]]]
"""Describes all inputs that must be connected for the node to execute."""
optional: NotRequired[dict[str, tuple[IO, InputTypeOptions]]]
"""Describes inputs which do not need to be connected."""
hidden: NotRequired[HiddenInputTypeDict]
"""Offers advanced functionality and server-client communication.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/more_on_inputs#hidden-inputs
"""
class ComfyNodeABC(ABC):
"""Abstract base class for Comfy nodes. Includes the names and expected types of attributes.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview
"""
DESCRIPTION: str
"""Node description, shown as a tooltip when hovering over the node.
Usage::
# Explicitly define the description
DESCRIPTION = "Example description here."
# Use the docstring of the node class.
DESCRIPTION = cleandoc(__doc__)
"""
CATEGORY: str
"""The category of the node, as per the "Add Node" menu.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview#category
"""
EXPERIMENTAL: bool
"""Flags a node as experimental, informing users that it may change or not work as expected."""
DEPRECATED: bool
"""Flags a node as deprecated, indicating to users that they should find alternatives to this node."""
@classmethod
@abstractmethod
def INPUT_TYPES(s) -> InputTypeDict:
"""Defines node inputs.
* Must include the ``required`` key, which describes all inputs that must be connected for the node to execute.
* The ``optional`` key can be added to describe inputs which do not need to be connected.
* The ``hidden`` key offers some advanced functionality. More info at: https://docs.comfy.org/custom-nodes/backend/more_on_inputs#hidden-inputs
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview#input-types
"""
return {"required": {}}
OUTPUT_NODE: bool
"""Flags this node as an output node, causing any inputs it requires to be executed.
If a node is not connected to any output nodes, that node will not be executed. Usage::
OUTPUT_NODE = True
From the docs:
By default, a node is not considered an output. Set ``OUTPUT_NODE = True`` to specify that it is.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview#output-node
"""
INPUT_IS_LIST: bool
"""A flag indicating if this node implements the additional code necessary to deal with OUTPUT_IS_LIST nodes.
All inputs of ``type`` will become ``list[type]``, regardless of how many items are passed in. This also affects ``check_lazy_status``.
From the docs:
A node can also override the default input behaviour and receive the whole list in a single call. This is done by setting a class attribute `INPUT_IS_LIST` to ``True``.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/lists#list-processing
"""
OUTPUT_IS_LIST: tuple[bool]
"""A tuple indicating which node outputs are lists, but will be connected to nodes that expect individual items.
Connected nodes that do not implement `INPUT_IS_LIST` will be executed once for every item in the list.
A ``tuple[bool]``, where the items match those in `RETURN_TYPES`::
RETURN_TYPES = (IO.INT, IO.INT, IO.STRING)
OUTPUT_IS_LIST = (True, True, False) # The string output will be handled normally
From the docs:
In order to tell Comfy that the list being returned should not be wrapped, but treated as a series of data for sequential processing,
the node should provide a class attribute `OUTPUT_IS_LIST`, which is a ``tuple[bool]``, of the same length as `RETURN_TYPES`,
specifying which outputs which should be so treated.
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/lists#list-processing
"""
RETURN_TYPES: tuple[IO]
"""A tuple representing the outputs of this node.
Usage::
RETURN_TYPES = (IO.INT, "INT", "CUSTOM_TYPE")
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview#return-types
"""
RETURN_NAMES: tuple[str]
"""The output slot names for each item in `RETURN_TYPES`, e.g. ``RETURN_NAMES = ("count", "filter_string")``
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview#return-names
"""
OUTPUT_TOOLTIPS: tuple[str]
"""A tuple of strings to use as tooltips for node outputs, one for each item in `RETURN_TYPES`."""
FUNCTION: str
"""The name of the function to execute as a literal string, e.g. `FUNCTION = "execute"`
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/server_overview#function
"""
class CheckLazyMixin:
"""Provides a basic check_lazy_status implementation and type hinting for nodes that use lazy inputs."""
def check_lazy_status(self, **kwargs) -> list[str]:
"""Returns a list of input names that should be evaluated.
This basic mixin impl. requires all inputs.
:kwargs: All node inputs will be included here. If the input is ``None``, it should be assumed that it has not yet been evaluated. \
When using ``INPUT_IS_LIST = True``, unevaluated will instead be ``(None,)``.
Params should match the nodes execution ``FUNCTION`` (self, and all inputs by name).
Will be executed repeatedly until it returns an empty list, or all requested items were already evaluated (and sent as params).
Comfy Docs: https://docs.comfy.org/custom-nodes/backend/lazy_evaluation#defining-check-lazy-status
"""
need = [name for name in kwargs if kwargs[name] is None]
return need
class FileLocator(TypedDict):
"""Provides type hinting for the file location"""
filename: str
"""The filename of the file."""
subfolder: str
"""The subfolder of the file."""
type: Literal["input", "output", "temp"]
"""The root folder of the file."""

View File

@ -3,6 +3,9 @@ import math
import comfy.utils
def lcm(a, b): #TODO: eventually replace by math.lcm (added in python3.9)
return abs(a*b) // math.gcd(a, b)
class CONDRegular:
def __init__(self, cond):
self.cond = cond
@ -43,7 +46,7 @@ class CONDCrossAttn(CONDRegular):
if s1[0] != s2[0] or s1[2] != s2[2]: #these 2 cases should not happen
return False
mult_min = math.lcm(s1[1], s2[1])
mult_min = lcm(s1[1], s2[1])
diff = mult_min // min(s1[1], s2[1])
if diff > 4: #arbitrary limit on the padding because it's probably going to impact performance negatively if it's too much
return False
@ -54,7 +57,7 @@ class CONDCrossAttn(CONDRegular):
crossattn_max_len = self.cond.shape[1]
for x in others:
c = x.cond
crossattn_max_len = math.lcm(crossattn_max_len, c.shape[1])
crossattn_max_len = lcm(crossattn_max_len, c.shape[1])
conds.append(c)
out = []

View File

@ -34,12 +34,6 @@ import comfy.t2i_adapter.adapter
import comfy.ldm.cascade.controlnet
import comfy.cldm.mmdit
import comfy.ldm.hydit.controlnet
import comfy.ldm.flux.controlnet
import comfy.cldm.dit_embedder
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from comfy.hooks import HookGroup
def broadcast_image_to(tensor, target_batch_size, batched_number):
current_batch_size = tensor.shape[0]
@ -64,7 +58,7 @@ class StrengthType(Enum):
LINEAR_UP = 2
class ControlBase:
def __init__(self):
def __init__(self, device=None):
self.cond_hint_original = None
self.cond_hint = None
self.strength = 1.0
@ -76,26 +70,20 @@ class ControlBase:
self.compression_ratio = 8
self.upscale_algorithm = 'nearest-exact'
self.extra_args = {}
if device is None:
device = comfy.model_management.get_torch_device()
self.device = device
self.previous_controlnet = None
self.extra_conds = []
self.strength_type = StrengthType.CONSTANT
self.concat_mask = False
self.extra_concat_orig = []
self.extra_concat = None
self.extra_hooks: HookGroup = None
self.preprocess_image = lambda a: a
def set_cond_hint(self, cond_hint, strength=1.0, timestep_percent_range=(0.0, 1.0), vae=None, extra_concat=[]):
def set_cond_hint(self, cond_hint, strength=1.0, timestep_percent_range=(0.0, 1.0), vae=None):
self.cond_hint_original = cond_hint
self.strength = strength
self.timestep_percent_range = timestep_percent_range
if self.latent_format is not None:
if vae is None:
logging.warning("WARNING: no VAE provided to the controlnet apply node when this controlnet requires one.")
self.vae = vae
self.extra_concat_orig = extra_concat.copy()
if self.concat_mask and len(self.extra_concat_orig) == 0:
self.extra_concat_orig.append(torch.tensor([[[[1.0]]]]))
return self
def pre_run(self, model, percent_to_timestep_function):
@ -110,9 +98,9 @@ class ControlBase:
def cleanup(self):
if self.previous_controlnet is not None:
self.previous_controlnet.cleanup()
if self.cond_hint is not None:
del self.cond_hint
self.cond_hint = None
self.extra_concat = None
self.timestep_range = None
def get_models(self):
@ -121,14 +109,6 @@ class ControlBase:
out += self.previous_controlnet.get_models()
return out
def get_extra_hooks(self):
out = []
if self.extra_hooks is not None:
out.append(self.extra_hooks)
if self.previous_controlnet is not None:
out += self.previous_controlnet.get_extra_hooks()
return out
def copy_to(self, c):
c.cond_hint_original = self.cond_hint_original
c.strength = self.strength
@ -141,10 +121,6 @@ class ControlBase:
c.vae = self.vae
c.extra_conds = self.extra_conds.copy()
c.strength_type = self.strength_type
c.concat_mask = self.concat_mask
c.extra_concat_orig = self.extra_concat_orig.copy()
c.extra_hooks = self.extra_hooks.clone() if self.extra_hooks else None
c.preprocess_image = self.preprocess_image
def inference_memory_requirements(self, dtype):
if self.previous_controlnet is not None:
@ -170,7 +146,7 @@ class ControlBase:
elif self.strength_type == StrengthType.LINEAR_UP:
x *= (self.strength ** float(len(control_output) - i))
if output_dtype is not None and x.dtype != output_dtype:
if x.dtype != output_dtype:
x = x.to(output_dtype)
out[key].append(x)
@ -197,8 +173,8 @@ class ControlBase:
class ControlNet(ControlBase):
def __init__(self, control_model=None, global_average_pooling=False, compression_ratio=8, latent_format=None, load_device=None, manual_cast_dtype=None, extra_conds=["y"], strength_type=StrengthType.CONSTANT, concat_mask=False, preprocess_image=lambda a: a):
super().__init__()
def __init__(self, control_model=None, global_average_pooling=False, compression_ratio=8, latent_format=None, device=None, load_device=None, manual_cast_dtype=None, extra_conds=["y"], strength_type=StrengthType.CONSTANT):
super().__init__(device)
self.control_model = control_model
self.load_device = load_device
if control_model is not None:
@ -211,13 +187,11 @@ class ControlNet(ControlBase):
self.latent_format = latent_format
self.extra_conds += extra_conds
self.strength_type = strength_type
self.concat_mask = concat_mask
self.preprocess_image = preprocess_image
def get_control(self, x_noisy, t, cond, batched_number, transformer_options):
def get_control(self, x_noisy, t, cond, batched_number):
control_prev = None
if self.previous_controlnet is not None:
control_prev = self.previous_controlnet.get_control(x_noisy, t, cond, batched_number, transformer_options)
control_prev = self.previous_controlnet.get_control(x_noisy, t, cond, batched_number)
if self.timestep_range is not None:
if t[0] > self.timestep_range[0] or t[0] < self.timestep_range[1]:
@ -230,6 +204,7 @@ class ControlNet(ControlBase):
if self.manual_cast_dtype is not None:
dtype = self.manual_cast_dtype
output_dtype = x_noisy.dtype
if self.cond_hint is None or x_noisy.shape[2] * self.compression_ratio != self.cond_hint.shape[2] or x_noisy.shape[3] * self.compression_ratio != self.cond_hint.shape[3]:
if self.cond_hint is not None:
del self.cond_hint
@ -237,26 +212,14 @@ class ControlNet(ControlBase):
compression_ratio = self.compression_ratio
if self.vae is not None:
compression_ratio *= self.vae.downscale_ratio
else:
if self.latent_format is not None:
raise ValueError("This Controlnet needs a VAE but none was provided, please use a ControlNetApply node with a VAE input and connect it.")
self.cond_hint = comfy.utils.common_upscale(self.cond_hint_original, x_noisy.shape[3] * compression_ratio, x_noisy.shape[2] * compression_ratio, self.upscale_algorithm, "center")
self.cond_hint = self.preprocess_image(self.cond_hint)
if self.vae is not None:
loaded_models = comfy.model_management.loaded_models(only_currently_used=True)
self.cond_hint = self.vae.encode(self.cond_hint.movedim(1, -1))
comfy.model_management.load_models_gpu(loaded_models)
if self.latent_format is not None:
self.cond_hint = self.latent_format.process_in(self.cond_hint)
if len(self.extra_concat_orig) > 0:
to_concat = []
for c in self.extra_concat_orig:
c = c.to(self.cond_hint.device)
c = comfy.utils.common_upscale(c, self.cond_hint.shape[3], self.cond_hint.shape[2], self.upscale_algorithm, "center")
to_concat.append(comfy.utils.repeat_to_batch_size(c, self.cond_hint.shape[0]))
self.cond_hint = torch.cat([self.cond_hint] + to_concat, dim=1)
self.cond_hint = self.cond_hint.to(device=x_noisy.device, dtype=dtype)
self.cond_hint = self.cond_hint.to(device=self.device, dtype=dtype)
if x_noisy.shape[0] != self.cond_hint.shape[0]:
self.cond_hint = broadcast_image_to(self.cond_hint, x_noisy.shape[0], batched_number)
@ -271,7 +234,7 @@ class ControlNet(ControlBase):
x_noisy = self.model_sampling_current.calculate_input(t, x_noisy)
control = self.control_model(x=x_noisy.to(dtype), hint=self.cond_hint, timesteps=timestep.to(dtype), context=context.to(dtype), **extra)
return self.control_merge(control, control_prev, output_dtype=None)
return self.control_merge(control, control_prev, output_dtype)
def copy(self):
c = ControlNet(None, global_average_pooling=self.global_average_pooling, load_device=self.load_device, manual_cast_dtype=self.manual_cast_dtype)
@ -297,6 +260,7 @@ class ControlLoraOps:
class Linear(torch.nn.Module, comfy.ops.CastWeightBiasOp):
def __init__(self, in_features: int, out_features: int, bias: bool = True,
device=None, dtype=None) -> None:
factory_kwargs = {'device': device, 'dtype': dtype}
super().__init__()
self.in_features = in_features
self.out_features = out_features
@ -354,8 +318,8 @@ class ControlLoraOps:
class ControlLora(ControlNet):
def __init__(self, control_weights, global_average_pooling=False, model_options={}): #TODO? model_options
ControlBase.__init__(self)
def __init__(self, control_weights, global_average_pooling=False, device=None):
ControlBase.__init__(self, device)
self.control_weights = control_weights
self.global_average_pooling = global_average_pooling
self.extra_conds += ["y"]
@ -381,6 +345,7 @@ class ControlLora(ControlNet):
self.control_model.to(comfy.model_management.get_torch_device())
diffusion_model = model.diffusion_model
sd = diffusion_model.state_dict()
cm = self.control_model.state_dict()
for k in sd:
weight = sd[k]
@ -410,25 +375,21 @@ class ControlLora(ControlNet):
def inference_memory_requirements(self, dtype):
return comfy.utils.calculate_parameters(self.control_weights) * comfy.model_management.dtype_size(dtype) + ControlBase.inference_memory_requirements(self, dtype)
def controlnet_config(sd, model_options={}):
def controlnet_config(sd):
model_config = comfy.model_detection.model_config_from_unet(sd, "", True)
unet_dtype = model_options.get("dtype", None)
if unet_dtype is None:
weight_dtype = comfy.utils.weight_dtype(sd)
supported_inference_dtypes = list(model_config.supported_inference_dtypes)
unet_dtype = comfy.model_management.unet_dtype(model_params=-1, supported_dtypes=supported_inference_dtypes, weight_dtype=weight_dtype)
supported_inference_dtypes = model_config.supported_inference_dtypes
controlnet_config = model_config.unet_config
unet_dtype = comfy.model_management.unet_dtype(supported_dtypes=supported_inference_dtypes)
load_device = comfy.model_management.get_torch_device()
manual_cast_dtype = comfy.model_management.unet_manual_cast(unet_dtype, load_device)
if manual_cast_dtype is not None:
operations = comfy.ops.manual_cast
else:
operations = comfy.ops.disable_weight_init
operations = model_options.get("custom_operations", None)
if operations is None:
operations = comfy.ops.pick_operations(unet_dtype, manual_cast_dtype, disable_fast_fp8=True)
offload_device = comfy.model_management.unet_offload_device()
return model_config, operations, load_device, unet_dtype, manual_cast_dtype, offload_device
return model_config, operations, load_device, unet_dtype, manual_cast_dtype
def controlnet_load_state_dict(control_model, sd):
missing, unexpected = control_model.load_state_dict(sd, strict=False)
@ -440,108 +401,25 @@ def controlnet_load_state_dict(control_model, sd):
logging.debug("unexpected controlnet keys: {}".format(unexpected))
return control_model
def load_controlnet_mmdit(sd, model_options={}):
def load_controlnet_mmdit(sd):
new_sd = comfy.model_detection.convert_diffusers_mmdit(sd, "")
model_config, operations, load_device, unet_dtype, manual_cast_dtype, offload_device = controlnet_config(new_sd, model_options=model_options)
model_config, operations, load_device, unet_dtype, manual_cast_dtype = controlnet_config(new_sd)
num_blocks = comfy.model_detection.count_blocks(new_sd, 'joint_blocks.{}.')
for k in sd:
new_sd[k] = sd[k]
concat_mask = False
control_latent_channels = new_sd.get("pos_embed_input.proj.weight").shape[1]
if control_latent_channels == 17: #inpaint controlnet
concat_mask = True
control_model = comfy.cldm.mmdit.ControlNet(num_blocks=num_blocks, control_latent_channels=control_latent_channels, operations=operations, device=offload_device, dtype=unet_dtype, **model_config.unet_config)
control_model = comfy.cldm.mmdit.ControlNet(num_blocks=num_blocks, operations=operations, device=load_device, dtype=unet_dtype, **model_config.unet_config)
control_model = controlnet_load_state_dict(control_model, new_sd)
latent_format = comfy.latent_formats.SD3()
latent_format.shift_factor = 0 #SD3 controlnet weirdness
control = ControlNet(control_model, compression_ratio=1, latent_format=latent_format, concat_mask=concat_mask, load_device=load_device, manual_cast_dtype=manual_cast_dtype)
control = ControlNet(control_model, compression_ratio=1, latent_format=latent_format, load_device=load_device, manual_cast_dtype=manual_cast_dtype)
return control
def load_controlnet_hunyuandit(controlnet_data):
model_config, operations, load_device, unet_dtype, manual_cast_dtype = controlnet_config(controlnet_data)
class ControlNetSD35(ControlNet):
def pre_run(self, model, percent_to_timestep_function):
if self.control_model.double_y_emb:
missing, unexpected = self.control_model.orig_y_embedder.load_state_dict(model.diffusion_model.y_embedder.state_dict(), strict=False)
else:
missing, unexpected = self.control_model.x_embedder.load_state_dict(model.diffusion_model.x_embedder.state_dict(), strict=False)
super().pre_run(model, percent_to_timestep_function)
def copy(self):
c = ControlNetSD35(None, global_average_pooling=self.global_average_pooling, load_device=self.load_device, manual_cast_dtype=self.manual_cast_dtype)
c.control_model = self.control_model
c.control_model_wrapped = self.control_model_wrapped
self.copy_to(c)
return c
def load_controlnet_sd35(sd, model_options={}):
control_type = -1
if "control_type" in sd:
control_type = round(sd.pop("control_type").item())
# blur_cnet = control_type == 0
canny_cnet = control_type == 1
depth_cnet = control_type == 2
new_sd = {}
for k in comfy.utils.MMDIT_MAP_BASIC:
if k[1] in sd:
new_sd[k[0]] = sd.pop(k[1])
for k in sd:
new_sd[k] = sd[k]
sd = new_sd
y_emb_shape = sd["y_embedder.mlp.0.weight"].shape
depth = y_emb_shape[0] // 64
hidden_size = 64 * depth
num_heads = depth
head_dim = hidden_size // num_heads
num_blocks = comfy.model_detection.count_blocks(new_sd, 'transformer_blocks.{}.')
load_device = comfy.model_management.get_torch_device()
offload_device = comfy.model_management.unet_offload_device()
unet_dtype = comfy.model_management.unet_dtype(model_params=-1)
manual_cast_dtype = comfy.model_management.unet_manual_cast(unet_dtype, load_device)
operations = model_options.get("custom_operations", None)
if operations is None:
operations = comfy.ops.pick_operations(unet_dtype, manual_cast_dtype, disable_fast_fp8=True)
control_model = comfy.cldm.dit_embedder.ControlNetEmbedder(img_size=None,
patch_size=2,
in_chans=16,
num_layers=num_blocks,
main_model_double=depth,
double_y_emb=y_emb_shape[0] == y_emb_shape[1],
attention_head_dim=head_dim,
num_attention_heads=num_heads,
adm_in_channels=2048,
device=offload_device,
dtype=unet_dtype,
operations=operations)
control_model = controlnet_load_state_dict(control_model, sd)
latent_format = comfy.latent_formats.SD3()
preprocess_image = lambda a: a
if canny_cnet:
preprocess_image = lambda a: (a * 255 * 0.5 + 0.5)
elif depth_cnet:
preprocess_image = lambda a: 1.0 - a
control = ControlNetSD35(control_model, compression_ratio=1, latent_format=latent_format, load_device=load_device, manual_cast_dtype=manual_cast_dtype, preprocess_image=preprocess_image)
return control
def load_controlnet_hunyuandit(controlnet_data, model_options={}):
model_config, operations, load_device, unet_dtype, manual_cast_dtype, offload_device = controlnet_config(controlnet_data, model_options=model_options)
control_model = comfy.ldm.hydit.controlnet.HunYuanControlNet(operations=operations, device=offload_device, dtype=unet_dtype)
control_model = comfy.ldm.hydit.controlnet.HunYuanControlNet(operations=operations, device=load_device, dtype=unet_dtype)
control_model = controlnet_load_state_dict(control_model, controlnet_data)
latent_format = comfy.latent_formats.SDXL()
@ -549,49 +427,13 @@ def load_controlnet_hunyuandit(controlnet_data, model_options={}):
control = ControlNet(control_model, compression_ratio=1, latent_format=latent_format, load_device=load_device, manual_cast_dtype=manual_cast_dtype, extra_conds=extra_conds, strength_type=StrengthType.CONSTANT)
return control
def load_controlnet_flux_xlabs_mistoline(sd, mistoline=False, model_options={}):
model_config, operations, load_device, unet_dtype, manual_cast_dtype, offload_device = controlnet_config(sd, model_options=model_options)
control_model = comfy.ldm.flux.controlnet.ControlNetFlux(mistoline=mistoline, operations=operations, device=offload_device, dtype=unet_dtype, **model_config.unet_config)
control_model = controlnet_load_state_dict(control_model, sd)
extra_conds = ['y', 'guidance']
control = ControlNet(control_model, load_device=load_device, manual_cast_dtype=manual_cast_dtype, extra_conds=extra_conds)
return control
def load_controlnet_flux_instantx(sd, model_options={}):
new_sd = comfy.model_detection.convert_diffusers_mmdit(sd, "")
model_config, operations, load_device, unet_dtype, manual_cast_dtype, offload_device = controlnet_config(new_sd, model_options=model_options)
for k in sd:
new_sd[k] = sd[k]
num_union_modes = 0
union_cnet = "controlnet_mode_embedder.weight"
if union_cnet in new_sd:
num_union_modes = new_sd[union_cnet].shape[0]
control_latent_channels = new_sd.get("pos_embed_input.weight").shape[1] // 4
concat_mask = False
if control_latent_channels == 17:
concat_mask = True
control_model = comfy.ldm.flux.controlnet.ControlNetFlux(latent_input=True, num_union_modes=num_union_modes, control_latent_channels=control_latent_channels, operations=operations, device=offload_device, dtype=unet_dtype, **model_config.unet_config)
control_model = controlnet_load_state_dict(control_model, new_sd)
latent_format = comfy.latent_formats.Flux()
extra_conds = ['y', 'guidance']
control = ControlNet(control_model, compression_ratio=1, latent_format=latent_format, concat_mask=concat_mask, load_device=load_device, manual_cast_dtype=manual_cast_dtype, extra_conds=extra_conds)
return control
def convert_mistoline(sd):
return comfy.utils.state_dict_prefix_replace(sd, {"single_controlnet_blocks.": "controlnet_single_blocks."})
def load_controlnet_state_dict(state_dict, model=None, model_options={}):
controlnet_data = state_dict
def load_controlnet(ckpt_path, model=None):
controlnet_data = comfy.utils.load_torch_file(ckpt_path, safe_load=True)
if 'after_proj_list.18.bias' in controlnet_data.keys(): #Hunyuan DiT
return load_controlnet_hunyuandit(controlnet_data, model_options=model_options)
return load_controlnet_hunyuandit(controlnet_data)
if "lora_controlnet" in controlnet_data:
return ControlLora(controlnet_data, model_options=model_options)
return ControlLora(controlnet_data)
controlnet_config = None
supported_inference_dtypes = None
@ -646,18 +488,8 @@ def load_controlnet_state_dict(state_dict, model=None, model_options={}):
if len(leftover_keys) > 0:
logging.warning("leftover keys: {}".format(leftover_keys))
controlnet_data = new_sd
elif "controlnet_blocks.0.weight" in controlnet_data:
if "double_blocks.0.img_attn.norm.key_norm.scale" in controlnet_data:
return load_controlnet_flux_xlabs_mistoline(controlnet_data, model_options=model_options)
elif "pos_embed_input.proj.weight" in controlnet_data:
if "transformer_blocks.0.adaLN_modulation.1.bias" in controlnet_data:
return load_controlnet_sd35(controlnet_data, model_options=model_options) #Stability sd3.5 format
else:
return load_controlnet_mmdit(controlnet_data, model_options=model_options) #SD3 diffusers controlnet
elif "controlnet_x_embedder.weight" in controlnet_data:
return load_controlnet_flux_instantx(controlnet_data, model_options=model_options)
elif "controlnet_blocks.0.linear.weight" in controlnet_data: #mistoline flux
return load_controlnet_flux_xlabs_mistoline(convert_mistoline(controlnet_data), mistoline=True, model_options=model_options)
elif "controlnet_blocks.0.weight" in controlnet_data: #SD3 diffusers format
return load_controlnet_mmdit(controlnet_data)
pth_key = 'control_model.zero_convs.0.0.weight'
pth = False
@ -669,35 +501,26 @@ def load_controlnet_state_dict(state_dict, model=None, model_options={}):
elif key in controlnet_data:
prefix = ""
else:
net = load_t2i_adapter(controlnet_data, model_options=model_options)
net = load_t2i_adapter(controlnet_data)
if net is None:
logging.error("error could not detect control model type.")
logging.error("error checkpoint does not contain controlnet or t2i adapter data {}".format(ckpt_path))
return net
if controlnet_config is None:
model_config = comfy.model_detection.model_config_from_unet(controlnet_data, prefix, True)
supported_inference_dtypes = list(model_config.supported_inference_dtypes)
supported_inference_dtypes = model_config.supported_inference_dtypes
controlnet_config = model_config.unet_config
unet_dtype = model_options.get("dtype", None)
if unet_dtype is None:
weight_dtype = comfy.utils.weight_dtype(controlnet_data)
if supported_inference_dtypes is None:
supported_inference_dtypes = [comfy.model_management.unet_dtype()]
unet_dtype = comfy.model_management.unet_dtype(model_params=-1, supported_dtypes=supported_inference_dtypes, weight_dtype=weight_dtype)
load_device = comfy.model_management.get_torch_device()
if supported_inference_dtypes is None:
unet_dtype = comfy.model_management.unet_dtype()
else:
unet_dtype = comfy.model_management.unet_dtype(supported_dtypes=supported_inference_dtypes)
manual_cast_dtype = comfy.model_management.unet_manual_cast(unet_dtype, load_device)
operations = model_options.get("custom_operations", None)
if operations is None:
operations = comfy.ops.pick_operations(unet_dtype, manual_cast_dtype)
controlnet_config["operations"] = operations
if manual_cast_dtype is not None:
controlnet_config["operations"] = comfy.ops.manual_cast
controlnet_config["dtype"] = unet_dtype
controlnet_config["device"] = comfy.model_management.unet_offload_device()
controlnet_config.pop("out_channels")
controlnet_config["hint_channels"] = controlnet_data["{}input_hint_block.0.weight".format(prefix)].shape[1]
control_model = comfy.cldm.cldm.ControlNet(**controlnet_config)
@ -731,32 +554,22 @@ def load_controlnet_state_dict(state_dict, model=None, model_options={}):
if len(unexpected) > 0:
logging.debug("unexpected controlnet keys: {}".format(unexpected))
global_average_pooling = model_options.get("global_average_pooling", False)
global_average_pooling = False
filename = os.path.splitext(ckpt_path)[0]
if filename.endswith("_shuffle") or filename.endswith("_shuffle_fp16"): #TODO: smarter way of enabling global_average_pooling
global_average_pooling = True
control = ControlNet(control_model, global_average_pooling=global_average_pooling, load_device=load_device, manual_cast_dtype=manual_cast_dtype)
return control
def load_controlnet(ckpt_path, model=None, model_options={}):
if "global_average_pooling" not in model_options:
filename = os.path.splitext(ckpt_path)[0]
if filename.endswith("_shuffle") or filename.endswith("_shuffle_fp16"): #TODO: smarter way of enabling global_average_pooling
model_options["global_average_pooling"] = True
cnet = load_controlnet_state_dict(comfy.utils.load_torch_file(ckpt_path, safe_load=True), model=model, model_options=model_options)
if cnet is None:
logging.error("error checkpoint does not contain controlnet or t2i adapter data {}".format(ckpt_path))
return cnet
class T2IAdapter(ControlBase):
def __init__(self, t2i_model, channels_in, compression_ratio, upscale_algorithm, device=None):
super().__init__()
super().__init__(device)
self.t2i_model = t2i_model
self.channels_in = channels_in
self.control_input = None
self.compression_ratio = compression_ratio
self.upscale_algorithm = upscale_algorithm
if device is None:
device = comfy.model_management.get_torch_device()
self.device = device
def scale_image_to(self, width, height):
unshuffle_amount = self.t2i_model.unshuffle_amount
@ -764,10 +577,10 @@ class T2IAdapter(ControlBase):
height = math.ceil(height / unshuffle_amount) * unshuffle_amount
return width, height
def get_control(self, x_noisy, t, cond, batched_number, transformer_options):
def get_control(self, x_noisy, t, cond, batched_number):
control_prev = None
if self.previous_controlnet is not None:
control_prev = self.previous_controlnet.get_control(x_noisy, t, cond, batched_number, transformer_options)
control_prev = self.previous_controlnet.get_control(x_noisy, t, cond, batched_number)
if self.timestep_range is not None:
if t[0] > self.timestep_range[0] or t[0] < self.timestep_range[1]:
@ -804,7 +617,7 @@ class T2IAdapter(ControlBase):
self.copy_to(c)
return c
def load_t2i_adapter(t2i_data, model_options={}): #TODO: model_options
def load_t2i_adapter(t2i_data):
compression_ratio = 8
upscale_algorithm = 'nearest-exact'
@ -815,7 +628,7 @@ def load_t2i_adapter(t2i_data, model_options={}): #TODO: model_options
for i in range(4):
for j in range(2):
prefix_replace["adapter.body.{}.resnets.{}.".format(i, j)] = "body.{}.".format(i * 2 + j)
prefix_replace["adapter.body.{}.".format(i, )] = "body.{}.".format(i * 2)
prefix_replace["adapter.body.{}.".format(i, j)] = "body.{}.".format(i * 2)
prefix_replace["adapter."] = ""
t2i_data = comfy.utils.state_dict_prefix_replace(t2i_data, prefix_replace)
keys = t2i_data.keys()

View File

@ -4,6 +4,105 @@ import logging
# conversion code from https://github.com/huggingface/diffusers/blob/main/scripts/convert_diffusers_to_original_stable_diffusion.py
# =================#
# UNet Conversion #
# =================#
unet_conversion_map = [
# (stable-diffusion, HF Diffusers)
("time_embed.0.weight", "time_embedding.linear_1.weight"),
("time_embed.0.bias", "time_embedding.linear_1.bias"),
("time_embed.2.weight", "time_embedding.linear_2.weight"),
("time_embed.2.bias", "time_embedding.linear_2.bias"),
("input_blocks.0.0.weight", "conv_in.weight"),
("input_blocks.0.0.bias", "conv_in.bias"),
("out.0.weight", "conv_norm_out.weight"),
("out.0.bias", "conv_norm_out.bias"),
("out.2.weight", "conv_out.weight"),
("out.2.bias", "conv_out.bias"),
]
unet_conversion_map_resnet = [
# (stable-diffusion, HF Diffusers)
("in_layers.0", "norm1"),
("in_layers.2", "conv1"),
("out_layers.0", "norm2"),
("out_layers.3", "conv2"),
("emb_layers.1", "time_emb_proj"),
("skip_connection", "conv_shortcut"),
]
unet_conversion_map_layer = []
# hardcoded number of downblocks and resnets/attentions...
# would need smarter logic for other networks.
for i in range(4):
# loop over downblocks/upblocks
for j in range(2):
# loop over resnets/attentions for downblocks
hf_down_res_prefix = f"down_blocks.{i}.resnets.{j}."
sd_down_res_prefix = f"input_blocks.{3 * i + j + 1}.0."
unet_conversion_map_layer.append((sd_down_res_prefix, hf_down_res_prefix))
if i < 3:
# no attention layers in down_blocks.3
hf_down_atn_prefix = f"down_blocks.{i}.attentions.{j}."
sd_down_atn_prefix = f"input_blocks.{3 * i + j + 1}.1."
unet_conversion_map_layer.append((sd_down_atn_prefix, hf_down_atn_prefix))
for j in range(3):
# loop over resnets/attentions for upblocks
hf_up_res_prefix = f"up_blocks.{i}.resnets.{j}."
sd_up_res_prefix = f"output_blocks.{3 * i + j}.0."
unet_conversion_map_layer.append((sd_up_res_prefix, hf_up_res_prefix))
if i > 0:
# no attention layers in up_blocks.0
hf_up_atn_prefix = f"up_blocks.{i}.attentions.{j}."
sd_up_atn_prefix = f"output_blocks.{3 * i + j}.1."
unet_conversion_map_layer.append((sd_up_atn_prefix, hf_up_atn_prefix))
if i < 3:
# no downsample in down_blocks.3
hf_downsample_prefix = f"down_blocks.{i}.downsamplers.0.conv."
sd_downsample_prefix = f"input_blocks.{3 * (i + 1)}.0.op."
unet_conversion_map_layer.append((sd_downsample_prefix, hf_downsample_prefix))
# no upsample in up_blocks.3
hf_upsample_prefix = f"up_blocks.{i}.upsamplers.0."
sd_upsample_prefix = f"output_blocks.{3 * i + 2}.{1 if i == 0 else 2}."
unet_conversion_map_layer.append((sd_upsample_prefix, hf_upsample_prefix))
hf_mid_atn_prefix = "mid_block.attentions.0."
sd_mid_atn_prefix = "middle_block.1."
unet_conversion_map_layer.append((sd_mid_atn_prefix, hf_mid_atn_prefix))
for j in range(2):
hf_mid_res_prefix = f"mid_block.resnets.{j}."
sd_mid_res_prefix = f"middle_block.{2 * j}."
unet_conversion_map_layer.append((sd_mid_res_prefix, hf_mid_res_prefix))
def convert_unet_state_dict(unet_state_dict):
# buyer beware: this is a *brittle* function,
# and correct output requires that all of these pieces interact in
# the exact order in which I have arranged them.
mapping = {k: k for k in unet_state_dict.keys()}
for sd_name, hf_name in unet_conversion_map:
mapping[hf_name] = sd_name
for k, v in mapping.items():
if "resnets" in k:
for sd_part, hf_part in unet_conversion_map_resnet:
v = v.replace(hf_part, sd_part)
mapping[k] = v
for k, v in mapping.items():
for sd_part, hf_part in unet_conversion_map_layer:
v = v.replace(hf_part, sd_part)
mapping[k] = v
new_state_dict = {v: unet_state_dict[k] for k, v in mapping.items()}
return new_state_dict
# ================#
# VAE Conversion #
# ================#
@ -58,23 +157,16 @@ vae_conversion_map_attn = [
]
def reshape_weight_for_sd(w, conv3d=False):
def reshape_weight_for_sd(w):
# convert HF linear weights to SD conv2d weights
if conv3d:
return w.reshape(*w.shape, 1, 1, 1)
else:
return w.reshape(*w.shape, 1, 1)
def convert_vae_state_dict(vae_state_dict):
mapping = {k: k for k in vae_state_dict.keys()}
conv3d = False
for k, v in mapping.items():
for sd_part, hf_part in vae_conversion_map:
v = v.replace(hf_part, sd_part)
if v.endswith(".conv.weight"):
if not conv3d and vae_state_dict[k].ndim == 5:
conv3d = True
mapping[k] = v
for k, v in mapping.items():
if "attentions" in k:
@ -87,7 +179,7 @@ def convert_vae_state_dict(vae_state_dict):
for weight_name in weights_to_convert:
if f"mid.attn_1.{weight_name}.weight" in k:
logging.debug(f"Reshaping {k} for SD format")
new_state_dict[k] = reshape_weight_for_sd(v, conv3d=conv3d)
new_state_dict[k] = reshape_weight_for_sd(v)
return new_state_dict
@ -114,7 +206,6 @@ textenc_pattern = re.compile("|".join(protected.keys()))
# Ordering is from https://github.com/pytorch/pytorch/blob/master/test/cpp/api/modules.cpp
code2idx = {"q": 0, "k": 1, "v": 2}
# This function exists because at the time of writing torch.cat can't do fp8 with cuda
def cat_tensors(tensors):
x = 0
@ -131,7 +222,6 @@ def cat_tensors(tensors):
return out
def convert_text_enc_state_dict_v20(text_enc_dict, prefix=""):
new_state_dict = {}
capture_qkv_weight = {}
@ -187,3 +277,5 @@ def convert_text_enc_state_dict_v20(text_enc_dict, prefix=""):
def convert_text_enc_state_dict(text_enc_dict):
return text_enc_dict

View File

@ -22,7 +22,7 @@ def load_diffusers(model_path, output_vae=True, output_clip=True, embedding_dire
if text_encoder2_path is not None:
text_encoder_paths.append(text_encoder2_path)
unet = comfy.sd.load_diffusion_model(unet_path)
unet = comfy.sd.load_unet(unet_path)
clip = None
if output_clip:

View File

@ -1,10 +1,10 @@
#code taken from: https://github.com/wl-zhao/UniPC and modified
import torch
import torch.nn.functional as F
import math
import logging
from tqdm.auto import trange
from tqdm.auto import trange, tqdm
class NoiseScheduleVP:
@ -16,7 +16,7 @@ class NoiseScheduleVP:
continuous_beta_0=0.1,
continuous_beta_1=20.,
):
r"""Create a wrapper class for the forward SDE (VP type).
"""Create a wrapper class for the forward SDE (VP type).
***
Update: We support discrete-time diffusion models by implementing a picewise linear interpolation for log_alpha_t.
@ -475,7 +475,7 @@ class UniPC:
return self.multistep_uni_pc_vary_update(x, model_prev_list, t_prev_list, t, order, **kwargs)
def multistep_uni_pc_vary_update(self, x, model_prev_list, t_prev_list, t, order, use_corrector=True):
logging.info(f'using unified predictor-corrector with order {order} (solver type: vary coeff)')
print(f'using unified predictor-corrector with order {order} (solver type: vary coeff)')
ns = self.noise_schedule
assert order <= len(model_prev_list)
@ -519,6 +519,7 @@ class UniPC:
A_p = C_inv_p
if use_corrector:
print('using corrector')
C_inv = torch.linalg.inv(C)
A_c = C_inv
@ -661,7 +662,7 @@ class UniPC:
if x_t is None:
if use_predictor:
pred_res = torch.tensordot(D1s, rhos_p, dims=([1], [0])) # torch.einsum('k,bkchw->bchw', rhos_p, D1s)
pred_res = torch.einsum('k,bkchw->bchw', rhos_p, D1s)
else:
pred_res = 0
x_t = x_t_ - expand_dims(alpha_t * B_h, dims) * pred_res
@ -669,7 +670,7 @@ class UniPC:
if use_corrector:
model_t = self.model_fn(x_t, t)
if D1s is not None:
corr_res = torch.tensordot(D1s, rhos_c[:-1], dims=([1], [0])) # torch.einsum('k,bkchw->bchw', rhos_c[:-1], D1s)
corr_res = torch.einsum('k,bkchw->bchw', rhos_c[:-1], D1s)
else:
corr_res = 0
D1_t = (model_t - model_prev_0)
@ -703,6 +704,7 @@ class UniPC:
):
# t_0 = 1. / self.noise_schedule.total_N if t_end is None else t_end
# t_T = self.noise_schedule.T if t_start is None else t_start
device = x.device
steps = len(timesteps) - 1
if method == 'multistep':
assert steps >= order

View File

@ -1,67 +0,0 @@
import torch
def calc_mantissa(abs_x, exponent, normal_mask, MANTISSA_BITS, EXPONENT_BIAS, generator=None):
mantissa_scaled = torch.where(
normal_mask,
(abs_x / (2.0 ** (exponent - EXPONENT_BIAS)) - 1.0) * (2**MANTISSA_BITS),
(abs_x / (2.0 ** (-EXPONENT_BIAS + 1 - MANTISSA_BITS)))
)
mantissa_scaled += torch.rand(mantissa_scaled.size(), dtype=mantissa_scaled.dtype, layout=mantissa_scaled.layout, device=mantissa_scaled.device, generator=generator)
return mantissa_scaled.floor() / (2**MANTISSA_BITS)
#Not 100% sure about this
def manual_stochastic_round_to_float8(x, dtype, generator=None):
if dtype == torch.float8_e4m3fn:
EXPONENT_BITS, MANTISSA_BITS, EXPONENT_BIAS = 4, 3, 7
elif dtype == torch.float8_e5m2:
EXPONENT_BITS, MANTISSA_BITS, EXPONENT_BIAS = 5, 2, 15
else:
raise ValueError("Unsupported dtype")
x = x.half()
sign = torch.sign(x)
abs_x = x.abs()
sign = torch.where(abs_x == 0, 0, sign)
# Combine exponent calculation and clamping
exponent = torch.clamp(
torch.floor(torch.log2(abs_x)) + EXPONENT_BIAS,
0, 2**EXPONENT_BITS - 1
)
# Combine mantissa calculation and rounding
normal_mask = ~(exponent == 0)
abs_x[:] = calc_mantissa(abs_x, exponent, normal_mask, MANTISSA_BITS, EXPONENT_BIAS, generator=generator)
sign *= torch.where(
normal_mask,
(2.0 ** (exponent - EXPONENT_BIAS)) * (1.0 + abs_x),
(2.0 ** (-EXPONENT_BIAS + 1)) * abs_x
)
inf = torch.finfo(dtype)
torch.clamp(sign, min=inf.min, max=inf.max, out=sign)
return sign
def stochastic_rounding(value, dtype, seed=0):
if dtype == torch.float32:
return value.to(dtype=torch.float32)
if dtype == torch.float16:
return value.to(dtype=torch.float16)
if dtype == torch.bfloat16:
return value.to(dtype=torch.bfloat16)
if dtype == torch.float8_e4m3fn or dtype == torch.float8_e5m2:
generator = torch.Generator(device=value.device)
generator.manual_seed(seed)
output = torch.empty_like(value, dtype=dtype)
num_slices = max(1, (value.numel() / (4096 * 4096)))
slice_size = max(1, round(value.shape[0] / num_slices))
for i in range(0, value.shape[0], slice_size):
output[i:i+slice_size].copy_(manual_stochastic_round_to_float8(value[i:i+slice_size], dtype, generator=generator))
return output
return value.to(dtype=dtype)

View File

@ -1,4 +1,3 @@
import math
import torch
from torch import nn
from .ldm.modules.attention import CrossAttention

View File

@ -1,785 +0,0 @@
from __future__ import annotations
from typing import TYPE_CHECKING, Callable
import enum
import math
import torch
import numpy as np
import itertools
import logging
if TYPE_CHECKING:
from comfy.model_patcher import ModelPatcher, PatcherInjection
from comfy.model_base import BaseModel
from comfy.sd import CLIP
import comfy.lora
import comfy.model_management
import comfy.patcher_extension
from node_helpers import conditioning_set_values
# #######################################################################################################
# Hooks explanation
# -------------------
# The purpose of hooks is to allow conds to influence sampling without the need for ComfyUI core code to
# make explicit special cases like it does for ControlNet and GLIGEN.
#
# This is necessary for nodes/features that are intended for use with masked or scheduled conds, or those
# that should run special code when a 'marked' cond is used in sampling.
# #######################################################################################################
class EnumHookMode(enum.Enum):
'''
Priority of hook memory optimization vs. speed, mostly related to WeightHooks.
MinVram: No caching will occur for any operations related to hooks.
MaxSpeed: Excess VRAM (and RAM, once VRAM is sufficiently depleted) will be used to cache hook weights when switching hook groups.
'''
MinVram = "minvram"
MaxSpeed = "maxspeed"
class EnumHookType(enum.Enum):
'''
Hook types, each of which has different expected behavior.
'''
Weight = "weight"
ObjectPatch = "object_patch"
AdditionalModels = "add_models"
TransformerOptions = "transformer_options"
Injections = "add_injections"
class EnumWeightTarget(enum.Enum):
Model = "model"
Clip = "clip"
class EnumHookScope(enum.Enum):
'''
Determines if hook should be limited in its influence over sampling.
AllConditioning: hook will affect all conds used in sampling.
HookedOnly: hook will only affect the conds it was attached to.
'''
AllConditioning = "all_conditioning"
HookedOnly = "hooked_only"
class _HookRef:
pass
def default_should_register(hook: Hook, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
'''Example for how custom_should_register function can look like.'''
return True
def create_target_dict(target: EnumWeightTarget=None, **kwargs) -> dict[str]:
'''Creates base dictionary for use with Hooks' target param.'''
d = {}
if target is not None:
d['target'] = target
d.update(kwargs)
return d
class Hook:
def __init__(self, hook_type: EnumHookType=None, hook_ref: _HookRef=None, hook_id: str=None,
hook_keyframe: HookKeyframeGroup=None, hook_scope=EnumHookScope.AllConditioning):
self.hook_type = hook_type
'''Enum identifying the general class of this hook.'''
self.hook_ref = hook_ref if hook_ref else _HookRef()
'''Reference shared between hook clones that have the same value. Should NOT be modified.'''
self.hook_id = hook_id
'''Optional string ID to identify hook; useful if need to consolidate duplicates at registration time.'''
self.hook_keyframe = hook_keyframe if hook_keyframe else HookKeyframeGroup()
'''Keyframe storage that can be referenced to get strength for current sampling step.'''
self.hook_scope = hook_scope
'''Scope of where this hook should apply in terms of the conds used in sampling run.'''
self.custom_should_register = default_should_register
'''Can be overriden with a compatible function to decide if this hook should be registered without the need to override .should_register'''
@property
def strength(self):
return self.hook_keyframe.strength
def initialize_timesteps(self, model: BaseModel):
self.reset()
self.hook_keyframe.initialize_timesteps(model)
def reset(self):
self.hook_keyframe.reset()
def clone(self):
c: Hook = self.__class__()
c.hook_type = self.hook_type
c.hook_ref = self.hook_ref
c.hook_id = self.hook_id
c.hook_keyframe = self.hook_keyframe
c.hook_scope = self.hook_scope
c.custom_should_register = self.custom_should_register
return c
def should_register(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
return self.custom_should_register(self, model, model_options, target_dict, registered)
def add_hook_patches(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
raise NotImplementedError("add_hook_patches should be defined for Hook subclasses")
def __eq__(self, other: Hook):
return self.__class__ == other.__class__ and self.hook_ref == other.hook_ref
def __hash__(self):
return hash(self.hook_ref)
class WeightHook(Hook):
'''
Hook responsible for tracking weights to be applied to some model/clip.
Note, value of hook_scope is ignored and is treated as HookedOnly.
'''
def __init__(self, strength_model=1.0, strength_clip=1.0):
super().__init__(hook_type=EnumHookType.Weight, hook_scope=EnumHookScope.HookedOnly)
self.weights: dict = None
self.weights_clip: dict = None
self.need_weight_init = True
self._strength_model = strength_model
self._strength_clip = strength_clip
self.hook_scope = EnumHookScope.HookedOnly # this value does not matter for WeightHooks, just for docs
@property
def strength_model(self):
return self._strength_model * self.strength
@property
def strength_clip(self):
return self._strength_clip * self.strength
def add_hook_patches(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
if not self.should_register(model, model_options, target_dict, registered):
return False
weights = None
target = target_dict.get('target', None)
if target == EnumWeightTarget.Clip:
strength = self._strength_clip
else:
strength = self._strength_model
if self.need_weight_init:
key_map = {}
if target == EnumWeightTarget.Clip:
key_map = comfy.lora.model_lora_keys_clip(model.model, key_map)
else:
key_map = comfy.lora.model_lora_keys_unet(model.model, key_map)
weights = comfy.lora.load_lora(self.weights, key_map, log_missing=False)
else:
if target == EnumWeightTarget.Clip:
weights = self.weights_clip
else:
weights = self.weights
model.add_hook_patches(hook=self, patches=weights, strength_patch=strength)
registered.add(self)
return True
# TODO: add logs about any keys that were not applied
def clone(self):
c: WeightHook = super().clone()
c.weights = self.weights
c.weights_clip = self.weights_clip
c.need_weight_init = self.need_weight_init
c._strength_model = self._strength_model
c._strength_clip = self._strength_clip
return c
class ObjectPatchHook(Hook):
def __init__(self, object_patches: dict[str]=None,
hook_scope=EnumHookScope.AllConditioning):
super().__init__(hook_type=EnumHookType.ObjectPatch)
self.object_patches = object_patches
self.hook_scope = hook_scope
def clone(self):
c: ObjectPatchHook = super().clone()
c.object_patches = self.object_patches
return c
def add_hook_patches(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
raise NotImplementedError("ObjectPatchHook is not supported yet in ComfyUI.")
class AdditionalModelsHook(Hook):
'''
Hook responsible for telling model management any additional models that should be loaded.
Note, value of hook_scope is ignored and is treated as AllConditioning.
'''
def __init__(self, models: list[ModelPatcher]=None, key: str=None):
super().__init__(hook_type=EnumHookType.AdditionalModels)
self.models = models
self.key = key
def clone(self):
c: AdditionalModelsHook = super().clone()
c.models = self.models.copy() if self.models else self.models
c.key = self.key
return c
def add_hook_patches(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
if not self.should_register(model, model_options, target_dict, registered):
return False
registered.add(self)
return True
class TransformerOptionsHook(Hook):
'''
Hook responsible for adding wrappers, callbacks, patches, or anything else related to transformer_options.
'''
def __init__(self, transformers_dict: dict[str, dict[str, dict[str, list[Callable]]]]=None,
hook_scope=EnumHookScope.AllConditioning):
super().__init__(hook_type=EnumHookType.TransformerOptions)
self.transformers_dict = transformers_dict
self.hook_scope = hook_scope
self._skip_adding = False
'''Internal value used to avoid double load of transformer_options when hook_scope is AllConditioning.'''
def clone(self):
c: TransformerOptionsHook = super().clone()
c.transformers_dict = self.transformers_dict
c._skip_adding = self._skip_adding
return c
def add_hook_patches(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
if not self.should_register(model, model_options, target_dict, registered):
return False
# NOTE: to_load_options will be used to manually load patches/wrappers/callbacks from hooks
self._skip_adding = False
if self.hook_scope == EnumHookScope.AllConditioning:
add_model_options = {"transformer_options": self.transformers_dict,
"to_load_options": self.transformers_dict}
# skip_adding if included in AllConditioning to avoid double loading
self._skip_adding = True
else:
add_model_options = {"to_load_options": self.transformers_dict}
registered.add(self)
comfy.patcher_extension.merge_nested_dicts(model_options, add_model_options, copy_dict1=False)
return True
def on_apply_hooks(self, model: ModelPatcher, transformer_options: dict[str]):
if not self._skip_adding:
comfy.patcher_extension.merge_nested_dicts(transformer_options, self.transformers_dict, copy_dict1=False)
WrapperHook = TransformerOptionsHook
'''Only here for backwards compatibility, WrapperHook is identical to TransformerOptionsHook.'''
class InjectionsHook(Hook):
def __init__(self, key: str=None, injections: list[PatcherInjection]=None,
hook_scope=EnumHookScope.AllConditioning):
super().__init__(hook_type=EnumHookType.Injections)
self.key = key
self.injections = injections
self.hook_scope = hook_scope
def clone(self):
c: InjectionsHook = super().clone()
c.key = self.key
c.injections = self.injections.copy() if self.injections else self.injections
return c
def add_hook_patches(self, model: ModelPatcher, model_options: dict, target_dict: dict[str], registered: HookGroup):
raise NotImplementedError("InjectionsHook is not supported yet in ComfyUI.")
class HookGroup:
'''
Stores groups of hooks, and allows them to be queried by type.
To prevent breaking their functionality, never modify the underlying self.hooks or self._hook_dict vars directly;
always use the provided functions on HookGroup.
'''
def __init__(self):
self.hooks: list[Hook] = []
self._hook_dict: dict[EnumHookType, list[Hook]] = {}
def __len__(self):
return len(self.hooks)
def add(self, hook: Hook):
if hook not in self.hooks:
self.hooks.append(hook)
self._hook_dict.setdefault(hook.hook_type, []).append(hook)
def remove(self, hook: Hook):
if hook in self.hooks:
self.hooks.remove(hook)
self._hook_dict[hook.hook_type].remove(hook)
def get_type(self, hook_type: EnumHookType):
return self._hook_dict.get(hook_type, [])
def contains(self, hook: Hook):
return hook in self.hooks
def is_subset_of(self, other: HookGroup):
self_hooks = set(self.hooks)
other_hooks = set(other.hooks)
return self_hooks.issubset(other_hooks)
def new_with_common_hooks(self, other: HookGroup):
c = HookGroup()
for hook in self.hooks:
if other.contains(hook):
c.add(hook.clone())
return c
def clone(self):
c = HookGroup()
for hook in self.hooks:
c.add(hook.clone())
return c
def clone_and_combine(self, other: HookGroup):
c = self.clone()
if other is not None:
for hook in other.hooks:
c.add(hook.clone())
return c
def set_keyframes_on_hooks(self, hook_kf: HookKeyframeGroup):
if hook_kf is None:
hook_kf = HookKeyframeGroup()
else:
hook_kf = hook_kf.clone()
for hook in self.hooks:
hook.hook_keyframe = hook_kf
def get_hooks_for_clip_schedule(self):
scheduled_hooks: dict[WeightHook, list[tuple[tuple[float,float], HookKeyframe]]] = {}
# only care about WeightHooks, for now
for hook in self.get_type(EnumHookType.Weight):
hook: WeightHook
hook_schedule = []
# if no hook keyframes, assign default value
if len(hook.hook_keyframe.keyframes) == 0:
hook_schedule.append(((0.0, 1.0), None))
scheduled_hooks[hook] = hook_schedule
continue
# find ranges of values
prev_keyframe = hook.hook_keyframe.keyframes[0]
for keyframe in hook.hook_keyframe.keyframes:
if keyframe.start_percent > prev_keyframe.start_percent and not math.isclose(keyframe.strength, prev_keyframe.strength):
hook_schedule.append(((prev_keyframe.start_percent, keyframe.start_percent), prev_keyframe))
prev_keyframe = keyframe
elif keyframe.start_percent == prev_keyframe.start_percent:
prev_keyframe = keyframe
# create final range, assuming last start_percent was not 1.0
if not math.isclose(prev_keyframe.start_percent, 1.0):
hook_schedule.append(((prev_keyframe.start_percent, 1.0), prev_keyframe))
scheduled_hooks[hook] = hook_schedule
# hooks should not have their schedules in a list of tuples
all_ranges: list[tuple[float, float]] = []
for range_kfs in scheduled_hooks.values():
for t_range, keyframe in range_kfs:
all_ranges.append(t_range)
# turn list of ranges into boundaries
boundaries_set = set(itertools.chain.from_iterable(all_ranges))
boundaries_set.add(0.0)
boundaries = sorted(boundaries_set)
real_ranges = [(boundaries[i], boundaries[i + 1]) for i in range(len(boundaries) - 1)]
# with real ranges defined, give appropriate hooks w/ keyframes for each range
scheduled_keyframes: list[tuple[tuple[float,float], list[tuple[WeightHook, HookKeyframe]]]] = []
for t_range in real_ranges:
hooks_schedule = []
for hook, val in scheduled_hooks.items():
keyframe = None
# check if is a keyframe that works for the current t_range
for stored_range, stored_kf in val:
# if stored start is less than current end, then fits - give it assigned keyframe
if stored_range[0] < t_range[1] and stored_range[1] > t_range[0]:
keyframe = stored_kf
break
hooks_schedule.append((hook, keyframe))
scheduled_keyframes.append((t_range, hooks_schedule))
return scheduled_keyframes
def reset(self):
for hook in self.hooks:
hook.reset()
@staticmethod
def combine_all_hooks(hooks_list: list[HookGroup], require_count=0) -> HookGroup:
actual: list[HookGroup] = []
for group in hooks_list:
if group is not None:
actual.append(group)
if len(actual) < require_count:
raise Exception(f"Need at least {require_count} hooks to combine, but only had {len(actual)}.")
# if no hooks, then return None
if len(actual) == 0:
return None
# if only 1 hook, just return itself without cloning
elif len(actual) == 1:
return actual[0]
final_hook: HookGroup = None
for hook in actual:
if final_hook is None:
final_hook = hook.clone()
else:
final_hook = final_hook.clone_and_combine(hook)
return final_hook
class HookKeyframe:
def __init__(self, strength: float, start_percent=0.0, guarantee_steps=1):
self.strength = strength
# scheduling
self.start_percent = float(start_percent)
self.start_t = 999999999.9
self.guarantee_steps = guarantee_steps
def get_effective_guarantee_steps(self, max_sigma: torch.Tensor):
'''If keyframe starts before current sampling range (max_sigma), treat as 0.'''
if self.start_t > max_sigma:
return 0
return self.guarantee_steps
def clone(self):
c = HookKeyframe(strength=self.strength,
start_percent=self.start_percent, guarantee_steps=self.guarantee_steps)
c.start_t = self.start_t
return c
class HookKeyframeGroup:
def __init__(self):
self.keyframes: list[HookKeyframe] = []
self._current_keyframe: HookKeyframe = None
self._current_used_steps = 0
self._current_index = 0
self._current_strength = None
self._curr_t = -1.
# properties shadow those of HookWeightsKeyframe
@property
def strength(self):
if self._current_keyframe is not None:
return self._current_keyframe.strength
return 1.0
def reset(self):
self._current_keyframe = None
self._current_used_steps = 0
self._current_index = 0
self._current_strength = None
self.curr_t = -1.
self._set_first_as_current()
def add(self, keyframe: HookKeyframe):
# add to end of list, then sort
self.keyframes.append(keyframe)
self.keyframes = get_sorted_list_via_attr(self.keyframes, "start_percent")
self._set_first_as_current()
def _set_first_as_current(self):
if len(self.keyframes) > 0:
self._current_keyframe = self.keyframes[0]
else:
self._current_keyframe = None
def has_guarantee_steps(self):
for kf in self.keyframes:
if kf.guarantee_steps > 0:
return True
return False
def has_index(self, index: int):
return index >= 0 and index < len(self.keyframes)
def is_empty(self):
return len(self.keyframes) == 0
def clone(self):
c = HookKeyframeGroup()
for keyframe in self.keyframes:
c.keyframes.append(keyframe.clone())
c._set_first_as_current()
return c
def initialize_timesteps(self, model: BaseModel):
for keyframe in self.keyframes:
keyframe.start_t = model.model_sampling.percent_to_sigma(keyframe.start_percent)
def prepare_current_keyframe(self, curr_t: float, transformer_options: dict[str, torch.Tensor]) -> bool:
if self.is_empty():
return False
if curr_t == self._curr_t:
return False
max_sigma = torch.max(transformer_options["sample_sigmas"])
prev_index = self._current_index
prev_strength = self._current_strength
# if met guaranteed steps, look for next keyframe in case need to switch
if self._current_used_steps >= self._current_keyframe.get_effective_guarantee_steps(max_sigma):
# if has next index, loop through and see if need to switch
if self.has_index(self._current_index+1):
for i in range(self._current_index+1, len(self.keyframes)):
eval_c = self.keyframes[i]
# check if start_t is greater or equal to curr_t
# NOTE: t is in terms of sigmas, not percent, so bigger number = earlier step in sampling
if eval_c.start_t >= curr_t:
self._current_index = i
self._current_strength = eval_c.strength
self._current_keyframe = eval_c
self._current_used_steps = 0
# if guarantee_steps greater than zero, stop searching for other keyframes
if self._current_keyframe.get_effective_guarantee_steps(max_sigma) > 0:
break
# if eval_c is outside the percent range, stop looking further
else: break
# update steps current context is used
self._current_used_steps += 1
# update current timestep this was performed on
self._curr_t = curr_t
# return True if keyframe changed, False if no change
return prev_index != self._current_index and prev_strength != self._current_strength
class InterpolationMethod:
LINEAR = "linear"
EASE_IN = "ease_in"
EASE_OUT = "ease_out"
EASE_IN_OUT = "ease_in_out"
_LIST = [LINEAR, EASE_IN, EASE_OUT, EASE_IN_OUT]
@classmethod
def get_weights(cls, num_from: float, num_to: float, length: int, method: str, reverse=False):
diff = num_to - num_from
if method == cls.LINEAR:
weights = torch.linspace(num_from, num_to, length)
elif method == cls.EASE_IN:
index = torch.linspace(0, 1, length)
weights = diff * np.power(index, 2) + num_from
elif method == cls.EASE_OUT:
index = torch.linspace(0, 1, length)
weights = diff * (1 - np.power(1 - index, 2)) + num_from
elif method == cls.EASE_IN_OUT:
index = torch.linspace(0, 1, length)
weights = diff * ((1 - np.cos(index * np.pi)) / 2) + num_from
else:
raise ValueError(f"Unrecognized interpolation method '{method}'.")
if reverse:
weights = weights.flip(dims=(0,))
return weights
def get_sorted_list_via_attr(objects: list, attr: str) -> list:
if not objects:
return objects
elif len(objects) <= 1:
return [x for x in objects]
# now that we know we have to sort, do it following these rules:
# a) if objects have same value of attribute, maintain their relative order
# b) perform sorting of the groups of objects with same attributes
unique_attrs = {}
for o in objects:
val_attr = getattr(o, attr)
attr_list: list = unique_attrs.get(val_attr, list())
attr_list.append(o)
if val_attr not in unique_attrs:
unique_attrs[val_attr] = attr_list
# now that we have the unique attr values grouped together in relative order, sort them by key
sorted_attrs = dict(sorted(unique_attrs.items()))
# now flatten out the dict into a list to return
sorted_list = []
for object_list in sorted_attrs.values():
sorted_list.extend(object_list)
return sorted_list
def create_transformer_options_from_hooks(model: ModelPatcher, hooks: HookGroup, transformer_options: dict[str]=None):
# if no hooks or is not a ModelPatcher for sampling, return empty dict
if hooks is None or model.is_clip:
return {}
if transformer_options is None:
transformer_options = {}
for hook in hooks.get_type(EnumHookType.TransformerOptions):
hook: TransformerOptionsHook
hook.on_apply_hooks(model, transformer_options)
return transformer_options
def create_hook_lora(lora: dict[str, torch.Tensor], strength_model: float, strength_clip: float):
hook_group = HookGroup()
hook = WeightHook(strength_model=strength_model, strength_clip=strength_clip)
hook_group.add(hook)
hook.weights = lora
return hook_group
def create_hook_model_as_lora(weights_model, weights_clip, strength_model: float, strength_clip: float):
hook_group = HookGroup()
hook = WeightHook(strength_model=strength_model, strength_clip=strength_clip)
hook_group.add(hook)
patches_model = None
patches_clip = None
if weights_model is not None:
patches_model = {}
for key in weights_model:
patches_model[key] = ("model_as_lora", (weights_model[key],))
if weights_clip is not None:
patches_clip = {}
for key in weights_clip:
patches_clip[key] = ("model_as_lora", (weights_clip[key],))
hook.weights = patches_model
hook.weights_clip = patches_clip
hook.need_weight_init = False
return hook_group
def get_patch_weights_from_model(model: ModelPatcher, discard_model_sampling=True):
if model is None:
return None
patches_model: dict[str, torch.Tensor] = model.model.state_dict()
if discard_model_sampling:
# do not include ANY model_sampling components of the model that should act as a patch
for key in list(patches_model.keys()):
if key.startswith("model_sampling"):
patches_model.pop(key, None)
return patches_model
# NOTE: this function shows how to register weight hooks directly on the ModelPatchers
def load_hook_lora_for_models(model: ModelPatcher, clip: CLIP, lora: dict[str, torch.Tensor],
strength_model: float, strength_clip: float):
key_map = {}
if model is not None:
key_map = comfy.lora.model_lora_keys_unet(model.model, key_map)
if clip is not None:
key_map = comfy.lora.model_lora_keys_clip(clip.cond_stage_model, key_map)
hook_group = HookGroup()
hook = WeightHook()
hook_group.add(hook)
loaded: dict[str] = comfy.lora.load_lora(lora, key_map)
if model is not None:
new_modelpatcher = model.clone()
k = new_modelpatcher.add_hook_patches(hook=hook, patches=loaded, strength_patch=strength_model)
else:
k = ()
new_modelpatcher = None
if clip is not None:
new_clip = clip.clone()
k1 = new_clip.patcher.add_hook_patches(hook=hook, patches=loaded, strength_patch=strength_clip)
else:
k1 = ()
new_clip = None
k = set(k)
k1 = set(k1)
for x in loaded:
if (x not in k) and (x not in k1):
logging.warning(f"NOT LOADED {x}")
return (new_modelpatcher, new_clip, hook_group)
def _combine_hooks_from_values(c_dict: dict[str, HookGroup], values: dict[str, HookGroup], cache: dict[tuple[HookGroup, HookGroup], HookGroup]):
hooks_key = 'hooks'
# if hooks only exist in one dict, do what's needed so that it ends up in c_dict
if hooks_key not in values:
return
if hooks_key not in c_dict:
hooks_value = values.get(hooks_key, None)
if hooks_value is not None:
c_dict[hooks_key] = hooks_value
return
# otherwise, need to combine with minimum duplication via cache
hooks_tuple = (c_dict[hooks_key], values[hooks_key])
cached_hooks = cache.get(hooks_tuple, None)
if cached_hooks is None:
new_hooks = hooks_tuple[0].clone_and_combine(hooks_tuple[1])
cache[hooks_tuple] = new_hooks
c_dict[hooks_key] = new_hooks
else:
c_dict[hooks_key] = cache[hooks_tuple]
def conditioning_set_values_with_hooks(conditioning, values={}, append_hooks=True,
cache: dict[tuple[HookGroup, HookGroup], HookGroup]=None):
c = []
if cache is None:
cache = {}
for t in conditioning:
n = [t[0], t[1].copy()]
for k in values:
if append_hooks and k == 'hooks':
_combine_hooks_from_values(n[1], values, cache)
else:
n[1][k] = values[k]
c.append(n)
return c
def set_hooks_for_conditioning(cond, hooks: HookGroup, append_hooks=True, cache: dict[tuple[HookGroup, HookGroup], HookGroup]=None):
if hooks is None:
return cond
return conditioning_set_values_with_hooks(cond, {'hooks': hooks}, append_hooks=append_hooks, cache=cache)
def set_timesteps_for_conditioning(cond, timestep_range: tuple[float,float]):
if timestep_range is None:
return cond
return conditioning_set_values(cond, {"start_percent": timestep_range[0],
"end_percent": timestep_range[1]})
def set_mask_for_conditioning(cond, mask: torch.Tensor, set_cond_area: str, strength: float):
if mask is None:
return cond
set_area_to_bounds = False
if set_cond_area != 'default':
set_area_to_bounds = True
if len(mask.shape) < 3:
mask = mask.unsqueeze(0)
return conditioning_set_values(cond, {'mask': mask,
'set_area_to_bounds': set_area_to_bounds,
'mask_strength': strength})
def combine_conditioning(conds: list):
combined_conds = []
for cond in conds:
combined_conds.extend(cond)
return combined_conds
def combine_with_new_conds(conds: list, new_conds: list):
combined_conds = []
for c, new_c in zip(conds, new_conds):
combined_conds.append(combine_conditioning([c, new_c]))
return combined_conds
def set_conds_props(conds: list, strength: float, set_cond_area: str,
mask: torch.Tensor=None, hooks: HookGroup=None, timesteps_range: tuple[float,float]=None, append_hooks=True):
final_conds = []
cache = {}
for c in conds:
# first, apply lora_hook to conditioning, if provided
c = set_hooks_for_conditioning(c, hooks, append_hooks=append_hooks, cache=cache)
# next, apply mask to conditioning
c = set_mask_for_conditioning(cond=c, mask=mask, strength=strength, set_cond_area=set_cond_area)
# apply timesteps, if present
c = set_timesteps_for_conditioning(cond=c, timestep_range=timesteps_range)
# finally, apply mask to conditioning and store
final_conds.append(c)
return final_conds
def set_conds_props_and_combine(conds: list, new_conds: list, strength: float=1.0, set_cond_area: str="default",
mask: torch.Tensor=None, hooks: HookGroup=None, timesteps_range: tuple[float,float]=None, append_hooks=True):
combined_conds = []
cache = {}
for c, masked_c in zip(conds, new_conds):
# first, apply lora_hook to new conditioning, if provided
masked_c = set_hooks_for_conditioning(masked_c, hooks, append_hooks=append_hooks, cache=cache)
# next, apply mask to new conditioning, if provided
masked_c = set_mask_for_conditioning(cond=masked_c, mask=mask, set_cond_area=set_cond_area, strength=strength)
# apply timesteps, if present
masked_c = set_timesteps_for_conditioning(cond=masked_c, timestep_range=timesteps_range)
# finally, combine with existing conditioning and store
combined_conds.append(combine_conditioning([c, masked_c]))
return combined_conds
def set_default_conds_and_combine(conds: list, new_conds: list,
hooks: HookGroup=None, timesteps_range: tuple[float,float]=None, append_hooks=True):
combined_conds = []
cache = {}
for c, new_c in zip(conds, new_conds):
# first, apply lora_hook to new conditioning, if provided
new_c = set_hooks_for_conditioning(new_c, hooks, append_hooks=append_hooks, cache=cache)
# next, add default_cond key to cond so that during sampling, it can be identified
new_c = conditioning_set_values(new_c, {'default': True})
# apply timesteps, if present
new_c = set_timesteps_for_conditioning(cond=new_c, timestep_range=timesteps_range)
# finally, combine with existing conditioning and store
combined_conds.append(combine_conditioning([c, new_c]))
return combined_conds

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@ -1,141 +0,0 @@
import torch
from comfy.text_encoders.bert import BertAttention
import comfy.model_management
from comfy.ldm.modules.attention import optimized_attention_for_device
class Dino2AttentionOutput(torch.nn.Module):
def __init__(self, input_dim, output_dim, layer_norm_eps, dtype, device, operations):
super().__init__()
self.dense = operations.Linear(input_dim, output_dim, dtype=dtype, device=device)
def forward(self, x):
return self.dense(x)
class Dino2AttentionBlock(torch.nn.Module):
def __init__(self, embed_dim, heads, layer_norm_eps, dtype, device, operations):
super().__init__()
self.attention = BertAttention(embed_dim, heads, dtype, device, operations)
self.output = Dino2AttentionOutput(embed_dim, embed_dim, layer_norm_eps, dtype, device, operations)
def forward(self, x, mask, optimized_attention):
return self.output(self.attention(x, mask, optimized_attention))
class LayerScale(torch.nn.Module):
def __init__(self, dim, dtype, device, operations):
super().__init__()
self.lambda1 = torch.nn.Parameter(torch.empty(dim, device=device, dtype=dtype))
def forward(self, x):
return x * comfy.model_management.cast_to_device(self.lambda1, x.device, x.dtype)
class SwiGLUFFN(torch.nn.Module):
def __init__(self, dim, dtype, device, operations):
super().__init__()
in_features = out_features = dim
hidden_features = int(dim * 4)
hidden_features = (int(hidden_features * 2 / 3) + 7) // 8 * 8
self.weights_in = operations.Linear(in_features, 2 * hidden_features, bias=True, device=device, dtype=dtype)
self.weights_out = operations.Linear(hidden_features, out_features, bias=True, device=device, dtype=dtype)
def forward(self, x):
x = self.weights_in(x)
x1, x2 = x.chunk(2, dim=-1)
x = torch.nn.functional.silu(x1) * x2
return self.weights_out(x)
class Dino2Block(torch.nn.Module):
def __init__(self, dim, num_heads, layer_norm_eps, dtype, device, operations):
super().__init__()
self.attention = Dino2AttentionBlock(dim, num_heads, layer_norm_eps, dtype, device, operations)
self.layer_scale1 = LayerScale(dim, dtype, device, operations)
self.layer_scale2 = LayerScale(dim, dtype, device, operations)
self.mlp = SwiGLUFFN(dim, dtype, device, operations)
self.norm1 = operations.LayerNorm(dim, eps=layer_norm_eps, dtype=dtype, device=device)
self.norm2 = operations.LayerNorm(dim, eps=layer_norm_eps, dtype=dtype, device=device)
def forward(self, x, optimized_attention):
x = x + self.layer_scale1(self.attention(self.norm1(x), None, optimized_attention))
x = x + self.layer_scale2(self.mlp(self.norm2(x)))
return x
class Dino2Encoder(torch.nn.Module):
def __init__(self, dim, num_heads, layer_norm_eps, num_layers, dtype, device, operations):
super().__init__()
self.layer = torch.nn.ModuleList([Dino2Block(dim, num_heads, layer_norm_eps, dtype, device, operations) for _ in range(num_layers)])
def forward(self, x, intermediate_output=None):
optimized_attention = optimized_attention_for_device(x.device, False, small_input=True)
if intermediate_output is not None:
if intermediate_output < 0:
intermediate_output = len(self.layer) + intermediate_output
intermediate = None
for i, l in enumerate(self.layer):
x = l(x, optimized_attention)
if i == intermediate_output:
intermediate = x.clone()
return x, intermediate
class Dino2PatchEmbeddings(torch.nn.Module):
def __init__(self, dim, num_channels=3, patch_size=14, image_size=518, dtype=None, device=None, operations=None):
super().__init__()
self.projection = operations.Conv2d(
in_channels=num_channels,
out_channels=dim,
kernel_size=patch_size,
stride=patch_size,
bias=True,
dtype=dtype,
device=device
)
def forward(self, pixel_values):
return self.projection(pixel_values).flatten(2).transpose(1, 2)
class Dino2Embeddings(torch.nn.Module):
def __init__(self, dim, dtype, device, operations):
super().__init__()
patch_size = 14
image_size = 518
self.patch_embeddings = Dino2PatchEmbeddings(dim, patch_size=patch_size, image_size=image_size, dtype=dtype, device=device, operations=operations)
self.position_embeddings = torch.nn.Parameter(torch.empty(1, (image_size // patch_size) ** 2 + 1, dim, dtype=dtype, device=device))
self.cls_token = torch.nn.Parameter(torch.empty(1, 1, dim, dtype=dtype, device=device))
self.mask_token = torch.nn.Parameter(torch.empty(1, dim, dtype=dtype, device=device))
def forward(self, pixel_values):
x = self.patch_embeddings(pixel_values)
# TODO: mask_token?
x = torch.cat((self.cls_token.expand(x.shape[0], -1, -1), x), dim=1)
x = x + comfy.model_management.cast_to_device(self.position_embeddings, x.device, x.dtype)
return x
class Dinov2Model(torch.nn.Module):
def __init__(self, config_dict, dtype, device, operations):
super().__init__()
num_layers = config_dict["num_hidden_layers"]
dim = config_dict["hidden_size"]
heads = config_dict["num_attention_heads"]
layer_norm_eps = config_dict["layer_norm_eps"]
self.embeddings = Dino2Embeddings(dim, dtype, device, operations)
self.encoder = Dino2Encoder(dim, heads, layer_norm_eps, num_layers, dtype, device, operations)
self.layernorm = operations.LayerNorm(dim, eps=layer_norm_eps, dtype=dtype, device=device)
def forward(self, pixel_values, attention_mask=None, intermediate_output=None):
x = self.embeddings(pixel_values)
x, i = self.encoder(x, intermediate_output=intermediate_output)
x = self.layernorm(x)
pooled_output = x[:, 0, :]
return x, i, pooled_output, None

View File

@ -1,21 +0,0 @@
{
"attention_probs_dropout_prob": 0.0,
"drop_path_rate": 0.0,
"hidden_act": "gelu",
"hidden_dropout_prob": 0.0,
"hidden_size": 1536,
"image_size": 518,
"initializer_range": 0.02,
"layer_norm_eps": 1e-06,
"layerscale_value": 1.0,
"mlp_ratio": 4,
"model_type": "dinov2",
"num_attention_heads": 24,
"num_channels": 3,
"num_hidden_layers": 40,
"patch_size": 14,
"qkv_bias": true,
"use_swiglu_ffn": true,
"image_mean": [0.485, 0.456, 0.406],
"image_std": [0.229, 0.224, 0.225]
}

View File

@ -11,6 +11,7 @@ import numpy as np
# Transfer from the input time (sigma) used in EDM to that (t) used in DEIS.
def edm2t(edm_steps, epsilon_s=1e-3, sigma_min=0.002, sigma_max=80):
vp_sigma = lambda beta_d, beta_min: lambda t: (np.e ** (0.5 * beta_d * (t ** 2) + beta_min * t) - 1) ** 0.5
vp_sigma_inv = lambda beta_d, beta_min: lambda sigma: ((beta_min ** 2 + 2 * beta_d * (sigma ** 2 + 1).log()).sqrt() - beta_min) / beta_d
vp_beta_d = 2 * (np.log(torch.tensor(sigma_min).cpu() ** 2 + 1) / epsilon_s - np.log(torch.tensor(sigma_max).cpu() ** 2 + 1)) / (epsilon_s - 1)
vp_beta_min = np.log(torch.tensor(sigma_max).cpu() ** 2 + 1) - 0.5 * vp_beta_d

View File

@ -9,7 +9,6 @@ from tqdm.auto import trange, tqdm
from . import utils
from . import deis
import comfy.model_patcher
import comfy.model_sampling
def append_zero(x):
return torch.cat([x, x.new_zeros([1])])
@ -40,21 +39,10 @@ def get_sigmas_polyexponential(n, sigma_min, sigma_max, rho=1., device='cpu'):
def get_sigmas_vp(n, beta_d=19.9, beta_min=0.1, eps_s=1e-3, device='cpu'):
"""Constructs a continuous VP noise schedule."""
t = torch.linspace(1, eps_s, n, device=device)
sigmas = torch.sqrt(torch.special.expm1(beta_d * t ** 2 / 2 + beta_min * t))
sigmas = torch.sqrt(torch.exp(beta_d * t ** 2 / 2 + beta_min * t) - 1)
return append_zero(sigmas)
def get_sigmas_laplace(n, sigma_min, sigma_max, mu=0., beta=0.5, device='cpu'):
"""Constructs the noise schedule proposed by Tiankai et al. (2024). """
epsilon = 1e-5 # avoid log(0)
x = torch.linspace(0, 1, n, device=device)
clamp = lambda x: torch.clamp(x, min=sigma_min, max=sigma_max)
lmb = mu - beta * torch.sign(0.5-x) * torch.log(1 - 2 * torch.abs(0.5-x) + epsilon)
sigmas = clamp(torch.exp(lmb))
return sigmas
def to_d(x, sigma, denoised):
"""Converts a denoiser output to a Karras ODE derivative."""
return (x - denoised) / utils.append_dims(sigma, x.ndim)
@ -70,14 +58,8 @@ def get_ancestral_step(sigma_from, sigma_to, eta=1.):
return sigma_down, sigma_up
def default_noise_sampler(x, seed=None):
if seed is not None:
generator = torch.Generator(device=x.device)
generator.manual_seed(seed)
else:
generator = None
return lambda sigma, sigma_next: torch.randn(x.size(), dtype=x.dtype, layout=x.layout, device=x.device, generator=generator)
def default_noise_sampler(x):
return lambda sigma, sigma_next: torch.randn_like(x)
class BatchedBrownianTree:
@ -170,55 +152,23 @@ def sample_euler(model, x, sigmas, extra_args=None, callback=None, disable=None,
@torch.no_grad()
def sample_euler_ancestral(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
if isinstance(model.inner_model.inner_model.model_sampling, comfy.model_sampling.CONST):
return sample_euler_ancestral_RF(model, x, sigmas, extra_args, callback, disable, eta, s_noise, noise_sampler)
"""Ancestral sampling with Euler method steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
sigma_down, sigma_up = get_ancestral_step(sigmas[i], sigmas[i + 1], eta=eta)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
if sigma_down == 0:
x = denoised
else:
d = to_d(x, sigmas[i], denoised)
# Euler method
dt = sigma_down - sigmas[i]
x = x + d * dt + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * sigma_up
x = x + d * dt
if sigmas[i + 1] > 0:
x = x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * sigma_up
return x
@torch.no_grad()
def sample_euler_ancestral_RF(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1.0, s_noise=1., noise_sampler=None):
"""Ancestral sampling with Euler method steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
# sigma_down, sigma_up = get_ancestral_step(sigmas[i], sigmas[i + 1], eta=eta)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
if sigmas[i + 1] == 0:
x = denoised
else:
downstep_ratio = 1 + (sigmas[i + 1] / sigmas[i] - 1) * eta
sigma_down = sigmas[i + 1] * downstep_ratio
alpha_ip1 = 1 - sigmas[i + 1]
alpha_down = 1 - sigma_down
renoise_coeff = (sigmas[i + 1]**2 - sigma_down**2 * alpha_ip1**2 / alpha_down**2)**0.5
# Euler method
sigma_down_i_ratio = sigma_down / sigmas[i]
x = sigma_down_i_ratio * x + (1 - sigma_down_i_ratio) * denoised
if eta > 0:
x = (alpha_ip1 / alpha_down) * x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * renoise_coeff
return x
@torch.no_grad()
def sample_heun(model, x, sigmas, extra_args=None, callback=None, disable=None, s_churn=0., s_tmin=0., s_tmax=float('inf'), s_noise=1.):
@ -293,13 +243,9 @@ def sample_dpm_2(model, x, sigmas, extra_args=None, callback=None, disable=None,
@torch.no_grad()
def sample_dpm_2_ancestral(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
if isinstance(model.inner_model.inner_model.model_sampling, comfy.model_sampling.CONST):
return sample_dpm_2_ancestral_RF(model, x, sigmas, extra_args, callback, disable, eta, s_noise, noise_sampler)
"""Ancestral sampling with DPM-Solver second-order steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
@ -323,39 +269,6 @@ def sample_dpm_2_ancestral(model, x, sigmas, extra_args=None, callback=None, dis
x = x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * sigma_up
return x
@torch.no_grad()
def sample_dpm_2_ancestral_RF(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
"""Ancestral sampling with DPM-Solver second-order steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
downstep_ratio = 1 + (sigmas[i+1]/sigmas[i] - 1) * eta
sigma_down = sigmas[i+1] * downstep_ratio
alpha_ip1 = 1 - sigmas[i+1]
alpha_down = 1 - sigma_down
renoise_coeff = (sigmas[i+1]**2 - sigma_down**2*alpha_ip1**2/alpha_down**2)**0.5
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
d = to_d(x, sigmas[i], denoised)
if sigma_down == 0:
# Euler method
dt = sigma_down - sigmas[i]
x = x + d * dt
else:
# DPM-Solver-2
sigma_mid = sigmas[i].log().lerp(sigma_down.log(), 0.5).exp()
dt_1 = sigma_mid - sigmas[i]
dt_2 = sigma_down - sigmas[i]
x_2 = x + d * dt_1
denoised_2 = model(x_2, sigma_mid * s_in, **extra_args)
d_2 = to_d(x_2, sigma_mid, denoised_2)
x = x + d_2 * dt_2
x = (alpha_ip1/alpha_down) * x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * renoise_coeff
return x
def linear_multistep_coeff(order, t, i, j):
if order - 1 > i:
@ -475,7 +388,7 @@ class DPMSolver(nn.Module):
return x_3, eps_cache
def dpm_solver_fast(self, x, t_start, t_end, nfe, eta=0., s_noise=1., noise_sampler=None):
noise_sampler = default_noise_sampler(x, seed=self.extra_args.get("seed", None)) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
if not t_end > t_start and eta:
raise ValueError('eta must be 0 for reverse sampling')
@ -514,7 +427,7 @@ class DPMSolver(nn.Module):
return x
def dpm_solver_adaptive(self, x, t_start, t_end, order=3, rtol=0.05, atol=0.0078, h_init=0.05, pcoeff=0., icoeff=1., dcoeff=0., accept_safety=0.81, eta=0., s_noise=1., noise_sampler=None):
noise_sampler = default_noise_sampler(x, seed=self.extra_args.get("seed", None)) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
if order not in {2, 3}:
raise ValueError('order should be 2 or 3')
forward = t_end > t_start
@ -596,13 +509,9 @@ def sample_dpm_adaptive(model, x, sigma_min, sigma_max, extra_args=None, callbac
@torch.no_grad()
def sample_dpmpp_2s_ancestral(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
if isinstance(model.inner_model.inner_model.model_sampling, comfy.model_sampling.CONST):
return sample_dpmpp_2s_ancestral_RF(model, x, sigmas, extra_args, callback, disable, eta, s_noise, noise_sampler)
"""Ancestral sampling with DPM-Solver++(2S) second-order steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
sigma_fn = lambda t: t.neg().exp()
t_fn = lambda sigma: sigma.log().neg()
@ -632,66 +541,16 @@ def sample_dpmpp_2s_ancestral(model, x, sigmas, extra_args=None, callback=None,
return x
@torch.no_grad()
def sample_dpmpp_2s_ancestral_RF(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
"""Ancestral sampling with DPM-Solver++(2S) second-order steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
sigma_fn = lambda lbda: (lbda.exp() + 1) ** -1
lambda_fn = lambda sigma: ((1-sigma)/sigma).log()
# logged_x = x.unsqueeze(0)
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
downstep_ratio = 1 + (sigmas[i+1]/sigmas[i] - 1) * eta
sigma_down = sigmas[i+1] * downstep_ratio
alpha_ip1 = 1 - sigmas[i+1]
alpha_down = 1 - sigma_down
renoise_coeff = (sigmas[i+1]**2 - sigma_down**2*alpha_ip1**2/alpha_down**2)**0.5
# sigma_down, sigma_up = get_ancestral_step(sigmas[i], sigmas[i + 1], eta=eta)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
if sigmas[i + 1] == 0:
# Euler method
d = to_d(x, sigmas[i], denoised)
dt = sigma_down - sigmas[i]
x = x + d * dt
else:
# DPM-Solver++(2S)
if sigmas[i] == 1.0:
sigma_s = 0.9999
else:
t_i, t_down = lambda_fn(sigmas[i]), lambda_fn(sigma_down)
r = 1 / 2
h = t_down - t_i
s = t_i + r * h
sigma_s = sigma_fn(s)
# sigma_s = sigmas[i+1]
sigma_s_i_ratio = sigma_s / sigmas[i]
u = sigma_s_i_ratio * x + (1 - sigma_s_i_ratio) * denoised
D_i = model(u, sigma_s * s_in, **extra_args)
sigma_down_i_ratio = sigma_down / sigmas[i]
x = sigma_down_i_ratio * x + (1 - sigma_down_i_ratio) * D_i
# print("sigma_i", sigmas[i], "sigma_ip1", sigmas[i+1],"sigma_down", sigma_down, "sigma_down_i_ratio", sigma_down_i_ratio, "sigma_s_i_ratio", sigma_s_i_ratio, "renoise_coeff", renoise_coeff)
# Noise addition
if sigmas[i + 1] > 0 and eta > 0:
x = (alpha_ip1/alpha_down) * x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * renoise_coeff
# logged_x = torch.cat((logged_x, x.unsqueeze(0)), dim=0)
return x
@torch.no_grad()
def sample_dpmpp_sde(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None, r=1 / 2):
"""DPM-Solver++ (stochastic)."""
if len(sigmas) <= 1:
return x
extra_args = {} if extra_args is None else extra_args
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
seed = extra_args.get("seed", None)
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max, seed=seed, cpu=True) if noise_sampler is None else noise_sampler
extra_args = {} if extra_args is None else extra_args
s_in = x.new_ones([x.shape[0]])
sigma_fn = lambda t: t.neg().exp()
t_fn = lambda sigma: sigma.log().neg()
@ -762,10 +621,10 @@ def sample_dpmpp_2m_sde(model, x, sigmas, extra_args=None, callback=None, disabl
if solver_type not in {'heun', 'midpoint'}:
raise ValueError('solver_type must be \'heun\' or \'midpoint\'')
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max, seed=seed, cpu=True) if noise_sampler is None else noise_sampler
extra_args = {} if extra_args is None else extra_args
s_in = x.new_ones([x.shape[0]])
old_denoised = None
@ -808,10 +667,10 @@ def sample_dpmpp_3m_sde(model, x, sigmas, extra_args=None, callback=None, disabl
if len(sigmas) <= 1:
return x
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max, seed=seed, cpu=True) if noise_sampler is None else noise_sampler
extra_args = {} if extra_args is None else extra_args
s_in = x.new_ones([x.shape[0]])
denoised_1, denoised_2 = None, None
@ -858,7 +717,7 @@ def sample_dpmpp_3m_sde(model, x, sigmas, extra_args=None, callback=None, disabl
def sample_dpmpp_3m_sde_gpu(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
if len(sigmas) <= 1:
return x
extra_args = {} if extra_args is None else extra_args
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max, seed=extra_args.get("seed", None), cpu=False) if noise_sampler is None else noise_sampler
return sample_dpmpp_3m_sde(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, eta=eta, s_noise=s_noise, noise_sampler=noise_sampler)
@ -867,7 +726,7 @@ def sample_dpmpp_3m_sde_gpu(model, x, sigmas, extra_args=None, callback=None, di
def sample_dpmpp_2m_sde_gpu(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None, solver_type='midpoint'):
if len(sigmas) <= 1:
return x
extra_args = {} if extra_args is None else extra_args
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max, seed=extra_args.get("seed", None), cpu=False) if noise_sampler is None else noise_sampler
return sample_dpmpp_2m_sde(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, eta=eta, s_noise=s_noise, noise_sampler=noise_sampler, solver_type=solver_type)
@ -876,7 +735,7 @@ def sample_dpmpp_2m_sde_gpu(model, x, sigmas, extra_args=None, callback=None, di
def sample_dpmpp_sde_gpu(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None, r=1 / 2):
if len(sigmas) <= 1:
return x
extra_args = {} if extra_args is None else extra_args
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max, seed=extra_args.get("seed", None), cpu=False) if noise_sampler is None else noise_sampler
return sample_dpmpp_sde(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, eta=eta, s_noise=s_noise, noise_sampler=noise_sampler, r=r)
@ -894,8 +753,7 @@ def DDPMSampler_step(x, sigma, sigma_prev, noise, noise_sampler):
def generic_step_sampler(model, x, sigmas, extra_args=None, callback=None, disable=None, noise_sampler=None, step_function=None):
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
for i in trange(len(sigmas) - 1, disable=disable):
@ -915,8 +773,7 @@ def sample_ddpm(model, x, sigmas, extra_args=None, callback=None, disable=None,
@torch.no_grad()
def sample_lcm(model, x, sigmas, extra_args=None, callback=None, disable=None, noise_sampler=None):
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
@ -1159,6 +1016,7 @@ def sample_euler_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disabl
d = to_d(x, sigma_hat, temp[0])
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigma_hat, 'denoised': denoised})
dt = sigmas[i + 1] - sigma_hat
# Euler method
x = denoised + d * sigmas[i + 1]
return x
@ -1167,8 +1025,7 @@ def sample_euler_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disabl
def sample_euler_ancestral_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
"""Ancestral sampling with Euler method steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
noise_sampler = default_noise_sampler(x) if noise_sampler is None else noise_sampler
temp = [0]
def post_cfg_function(args):
@ -1186,337 +1043,8 @@ def sample_euler_ancestral_cfg_pp(model, x, sigmas, extra_args=None, callback=No
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
d = to_d(x, sigmas[i], temp[0])
# Euler method
x = denoised + d * sigma_down
if sigmas[i + 1] > 0:
x = x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * sigma_up
return x
@torch.no_grad()
def sample_dpmpp_2s_ancestral_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
"""Ancestral sampling with DPM-Solver++(2S) second-order steps."""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
temp = [0]
def post_cfg_function(args):
temp[0] = args["uncond_denoised"]
return args["denoised"]
model_options = extra_args.get("model_options", {}).copy()
extra_args["model_options"] = comfy.model_patcher.set_model_options_post_cfg_function(model_options, post_cfg_function, disable_cfg1_optimization=True)
s_in = x.new_ones([x.shape[0]])
sigma_fn = lambda t: t.neg().exp()
t_fn = lambda sigma: sigma.log().neg()
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
sigma_down, sigma_up = get_ancestral_step(sigmas[i], sigmas[i + 1], eta=eta)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
if sigma_down == 0:
# Euler method
d = to_d(x, sigmas[i], temp[0])
x = denoised + d * sigma_down
else:
# DPM-Solver++(2S)
t, t_next = t_fn(sigmas[i]), t_fn(sigma_down)
# r = torch.sinh(1 + (2 - eta) * (t_next - t) / (t - t_fn(sigma_up))) works only on non-cfgpp, weird
r = 1 / 2
h = t_next - t
s = t + r * h
x_2 = (sigma_fn(s) / sigma_fn(t)) * (x + (denoised - temp[0])) - (-h * r).expm1() * denoised
denoised_2 = model(x_2, sigma_fn(s) * s_in, **extra_args)
x = (sigma_fn(t_next) / sigma_fn(t)) * (x + (denoised - temp[0])) - (-h).expm1() * denoised_2
# Noise addition
if sigmas[i + 1] > 0:
x = x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * sigma_up
return x
@torch.no_grad()
def sample_dpmpp_2m_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disable=None):
"""DPM-Solver++(2M)."""
extra_args = {} if extra_args is None else extra_args
s_in = x.new_ones([x.shape[0]])
t_fn = lambda sigma: sigma.log().neg()
old_uncond_denoised = None
uncond_denoised = None
def post_cfg_function(args):
nonlocal uncond_denoised
uncond_denoised = args["uncond_denoised"]
return args["denoised"]
model_options = extra_args.get("model_options", {}).copy()
extra_args["model_options"] = comfy.model_patcher.set_model_options_post_cfg_function(model_options, post_cfg_function, disable_cfg1_optimization=True)
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
t, t_next = t_fn(sigmas[i]), t_fn(sigmas[i + 1])
h = t_next - t
if old_uncond_denoised is None or sigmas[i + 1] == 0:
denoised_mix = -torch.exp(-h) * uncond_denoised
else:
h_last = t - t_fn(sigmas[i - 1])
r = h_last / h
denoised_mix = -torch.exp(-h) * uncond_denoised - torch.expm1(-h) * (1 / (2 * r)) * (denoised - old_uncond_denoised)
x = denoised + denoised_mix + torch.exp(-h) * x
old_uncond_denoised = uncond_denoised
return x
@torch.no_grad()
def res_multistep(model, x, sigmas, extra_args=None, callback=None, disable=None, s_noise=1., noise_sampler=None, eta=1., cfg_pp=False):
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
sigma_fn = lambda t: t.neg().exp()
t_fn = lambda sigma: sigma.log().neg()
phi1_fn = lambda t: torch.expm1(t) / t
phi2_fn = lambda t: (phi1_fn(t) - 1.0) / t
old_denoised = None
uncond_denoised = None
def post_cfg_function(args):
nonlocal uncond_denoised
uncond_denoised = args["uncond_denoised"]
return args["denoised"]
if cfg_pp:
model_options = extra_args.get("model_options", {}).copy()
extra_args["model_options"] = comfy.model_patcher.set_model_options_post_cfg_function(model_options, post_cfg_function, disable_cfg1_optimization=True)
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
sigma_down, sigma_up = get_ancestral_step(sigmas[i], sigmas[i + 1], eta=eta)
if callback is not None:
callback({"x": x, "i": i, "sigma": sigmas[i], "sigma_hat": sigmas[i], "denoised": denoised})
if sigma_down == 0 or old_denoised is None:
# Euler method
if cfg_pp:
d = to_d(x, sigmas[i], uncond_denoised)
x = denoised + d * sigma_down
else:
d = to_d(x, sigmas[i], denoised)
dt = sigma_down - sigmas[i]
x = x + d * dt
else:
# Second order multistep method in https://arxiv.org/pdf/2308.02157
t, t_next, t_prev = t_fn(sigmas[i]), t_fn(sigma_down), t_fn(sigmas[i - 1])
h = t_next - t
c2 = (t_prev - t) / h
phi1_val, phi2_val = phi1_fn(-h), phi2_fn(-h)
b1 = torch.nan_to_num(phi1_val - phi2_val / c2, nan=0.0)
b2 = torch.nan_to_num(phi2_val / c2, nan=0.0)
if cfg_pp:
x = x + (denoised - uncond_denoised)
x = sigma_fn(h) * x + h * (b1 * uncond_denoised + b2 * old_denoised)
else:
x = sigma_fn(h) * x + h * (b1 * denoised + b2 * old_denoised)
# Noise addition
x = denoised + d * sigma_down
if sigmas[i + 1] > 0:
x = x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * sigma_up
if cfg_pp:
old_denoised = uncond_denoised
else:
old_denoised = denoised
return x
@torch.no_grad()
def sample_res_multistep(model, x, sigmas, extra_args=None, callback=None, disable=None, s_noise=1., noise_sampler=None):
return res_multistep(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, s_noise=s_noise, noise_sampler=noise_sampler, eta=0., cfg_pp=False)
@torch.no_grad()
def sample_res_multistep_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disable=None, s_noise=1., noise_sampler=None):
return res_multistep(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, s_noise=s_noise, noise_sampler=noise_sampler, eta=0., cfg_pp=True)
@torch.no_grad()
def sample_res_multistep_ancestral(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
return res_multistep(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, s_noise=s_noise, noise_sampler=noise_sampler, eta=eta, cfg_pp=False)
@torch.no_grad()
def sample_res_multistep_ancestral_cfg_pp(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None):
return res_multistep(model, x, sigmas, extra_args=extra_args, callback=callback, disable=disable, s_noise=s_noise, noise_sampler=noise_sampler, eta=eta, cfg_pp=True)
@torch.no_grad()
def sample_gradient_estimation(model, x, sigmas, extra_args=None, callback=None, disable=None, ge_gamma=2.):
"""Gradient-estimation sampler. Paper: https://openreview.net/pdf?id=o2ND9v0CeK"""
extra_args = {} if extra_args is None else extra_args
s_in = x.new_ones([x.shape[0]])
old_d = None
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
d = to_d(x, sigmas[i], denoised)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
dt = sigmas[i + 1] - sigmas[i]
if i == 0:
# Euler method
x = x + d * dt
else:
# Gradient estimation
d_bar = ge_gamma * d + (1 - ge_gamma) * old_d
x = x + d_bar * dt
old_d = d
return x
@torch.no_grad()
def sample_er_sde(model, x, sigmas, extra_args=None, callback=None, disable=None, s_noise=1., noise_sampler=None, noise_scaler=None, max_stage=3):
"""
Extended Reverse-Time SDE solver (VE ER-SDE-Solver-3). Arxiv: https://arxiv.org/abs/2309.06169.
Code reference: https://github.com/QinpengCui/ER-SDE-Solver/blob/main/er_sde_solver.py.
"""
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
def default_noise_scaler(sigma):
return sigma * ((sigma ** 0.3).exp() + 10.0)
noise_scaler = default_noise_scaler if noise_scaler is None else noise_scaler
num_integration_points = 200.0
point_indice = torch.arange(0, num_integration_points, dtype=torch.float32, device=x.device)
old_denoised = None
old_denoised_d = None
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
stage_used = min(max_stage, i + 1)
if sigmas[i + 1] == 0:
x = denoised
elif stage_used == 1:
r = noise_scaler(sigmas[i + 1]) / noise_scaler(sigmas[i])
x = r * x + (1 - r) * denoised
else:
r = noise_scaler(sigmas[i + 1]) / noise_scaler(sigmas[i])
x = r * x + (1 - r) * denoised
dt = sigmas[i + 1] - sigmas[i]
sigma_step_size = -dt / num_integration_points
sigma_pos = sigmas[i + 1] + point_indice * sigma_step_size
scaled_pos = noise_scaler(sigma_pos)
# Stage 2
s = torch.sum(1 / scaled_pos) * sigma_step_size
denoised_d = (denoised - old_denoised) / (sigmas[i] - sigmas[i - 1])
x = x + (dt + s * noise_scaler(sigmas[i + 1])) * denoised_d
if stage_used >= 3:
# Stage 3
s_u = torch.sum((sigma_pos - sigmas[i]) / scaled_pos) * sigma_step_size
denoised_u = (denoised_d - old_denoised_d) / ((sigmas[i] - sigmas[i - 2]) / 2)
x = x + ((dt ** 2) / 2 + s_u * noise_scaler(sigmas[i + 1])) * denoised_u
old_denoised_d = denoised_d
if s_noise != 0 and sigmas[i + 1] > 0:
x = x + noise_sampler(sigmas[i], sigmas[i + 1]) * s_noise * (sigmas[i + 1] ** 2 - sigmas[i] ** 2 * r ** 2).sqrt().nan_to_num(nan=0.0)
old_denoised = denoised
return x
@torch.no_grad()
def sample_seeds_2(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None, r=0.5):
'''
SEEDS-2 - Stochastic Explicit Exponential Derivative-free Solvers (VE Data Prediction) stage 2
Arxiv: https://arxiv.org/abs/2305.14267
'''
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
inject_noise = eta > 0 and s_noise > 0
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
if sigmas[i + 1] == 0:
x = denoised
else:
t, t_next = -sigmas[i].log(), -sigmas[i + 1].log()
h = t_next - t
h_eta = h * (eta + 1)
s = t + r * h
fac = 1 / (2 * r)
sigma_s = s.neg().exp()
coeff_1, coeff_2 = (-r * h_eta).expm1(), (-h_eta).expm1()
if inject_noise:
noise_coeff_1 = (-2 * r * h * eta).expm1().neg().sqrt()
noise_coeff_2 = ((-2 * r * h * eta).expm1() - (-2 * h * eta).expm1()).sqrt()
noise_1, noise_2 = noise_sampler(sigmas[i], sigma_s), noise_sampler(sigma_s, sigmas[i + 1])
# Step 1
x_2 = (coeff_1 + 1) * x - coeff_1 * denoised
if inject_noise:
x_2 = x_2 + sigma_s * (noise_coeff_1 * noise_1) * s_noise
denoised_2 = model(x_2, sigma_s * s_in, **extra_args)
# Step 2
denoised_d = (1 - fac) * denoised + fac * denoised_2
x = (coeff_2 + 1) * x - coeff_2 * denoised_d
if inject_noise:
x = x + sigmas[i + 1] * (noise_coeff_2 * noise_1 + noise_coeff_1 * noise_2) * s_noise
return x
@torch.no_grad()
def sample_seeds_3(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None, r_1=1./3, r_2=2./3):
'''
SEEDS-3 - Stochastic Explicit Exponential Derivative-free Solvers (VE Data Prediction) stage 3
Arxiv: https://arxiv.org/abs/2305.14267
'''
extra_args = {} if extra_args is None else extra_args
seed = extra_args.get("seed", None)
noise_sampler = default_noise_sampler(x, seed=seed) if noise_sampler is None else noise_sampler
s_in = x.new_ones([x.shape[0]])
inject_noise = eta > 0 and s_noise > 0
for i in trange(len(sigmas) - 1, disable=disable):
denoised = model(x, sigmas[i] * s_in, **extra_args)
if callback is not None:
callback({'x': x, 'i': i, 'sigma': sigmas[i], 'sigma_hat': sigmas[i], 'denoised': denoised})
if sigmas[i + 1] == 0:
x = denoised
else:
t, t_next = -sigmas[i].log(), -sigmas[i + 1].log()
h = t_next - t
h_eta = h * (eta + 1)
s_1 = t + r_1 * h
s_2 = t + r_2 * h
sigma_s_1, sigma_s_2 = s_1.neg().exp(), s_2.neg().exp()
coeff_1, coeff_2, coeff_3 = (-r_1 * h_eta).expm1(), (-r_2 * h_eta).expm1(), (-h_eta).expm1()
if inject_noise:
noise_coeff_1 = (-2 * r_1 * h * eta).expm1().neg().sqrt()
noise_coeff_2 = ((-2 * r_1 * h * eta).expm1() - (-2 * r_2 * h * eta).expm1()).sqrt()
noise_coeff_3 = ((-2 * r_2 * h * eta).expm1() - (-2 * h * eta).expm1()).sqrt()
noise_1, noise_2, noise_3 = noise_sampler(sigmas[i], sigma_s_1), noise_sampler(sigma_s_1, sigma_s_2), noise_sampler(sigma_s_2, sigmas[i + 1])
# Step 1
x_2 = (coeff_1 + 1) * x - coeff_1 * denoised
if inject_noise:
x_2 = x_2 + sigma_s_1 * (noise_coeff_1 * noise_1) * s_noise
denoised_2 = model(x_2, sigma_s_1 * s_in, **extra_args)
# Step 2
x_3 = (coeff_2 + 1) * x - coeff_2 * denoised + (r_2 / r_1) * (coeff_2 / (r_2 * h_eta) + 1) * (denoised_2 - denoised)
if inject_noise:
x_3 = x_3 + sigma_s_2 * (noise_coeff_2 * noise_1 + noise_coeff_1 * noise_2) * s_noise
denoised_3 = model(x_3, sigma_s_2 * s_in, **extra_args)
# Step 3
x = (coeff_3 + 1) * x - coeff_3 * denoised + (1. / r_2) * (coeff_3 / h_eta + 1) * (denoised_3 - denoised)
if inject_noise:
x = x + sigmas[i + 1] * (noise_coeff_3 * noise_1 + noise_coeff_2 * noise_2 + noise_coeff_1 * noise_3) * s_noise
return x

View File

@ -3,9 +3,7 @@ import torch
class LatentFormat:
scale_factor = 1.0
latent_channels = 4
latent_dimensions = 2
latent_rgb_factors = None
latent_rgb_factors_bias = None
taesd_decoder_name = None
def process_in(self, latent):
@ -32,13 +30,11 @@ class SDXL(LatentFormat):
def __init__(self):
self.latent_rgb_factors = [
# R G B
[ 0.3651, 0.4232, 0.4341],
[-0.2533, -0.0042, 0.1068],
[ 0.1076, 0.1111, -0.0362],
[-0.3165, -0.2492, -0.2188]
[ 0.3920, 0.4054, 0.4549],
[-0.2634, -0.0196, 0.0653],
[ 0.0568, 0.1687, -0.0755],
[-0.3112, -0.2359, -0.2076]
]
self.latent_rgb_factors_bias = [ 0.1084, -0.0175, -0.0011]
self.taesd_decoder_name = "taesdxl_decoder"
class SDXL_Playground_2_5(LatentFormat):
@ -116,24 +112,23 @@ class SD3(LatentFormat):
self.scale_factor = 1.5305
self.shift_factor = 0.0609
self.latent_rgb_factors = [
[-0.0922, -0.0175, 0.0749],
[ 0.0311, 0.0633, 0.0954],
[ 0.1994, 0.0927, 0.0458],
[ 0.0856, 0.0339, 0.0902],
[ 0.0587, 0.0272, -0.0496],
[-0.0006, 0.1104, 0.0309],
[ 0.0978, 0.0306, 0.0427],
[-0.0042, 0.1038, 0.1358],
[-0.0194, 0.0020, 0.0669],
[-0.0488, 0.0130, -0.0268],
[ 0.0922, 0.0988, 0.0951],
[-0.0278, 0.0524, -0.0542],
[ 0.0332, 0.0456, 0.0895],
[-0.0069, -0.0030, -0.0810],
[-0.0596, -0.0465, -0.0293],
[-0.1448, -0.1463, -0.1189]
[-0.0645, 0.0177, 0.1052],
[ 0.0028, 0.0312, 0.0650],
[ 0.1848, 0.0762, 0.0360],
[ 0.0944, 0.0360, 0.0889],
[ 0.0897, 0.0506, -0.0364],
[-0.0020, 0.1203, 0.0284],
[ 0.0855, 0.0118, 0.0283],
[-0.0539, 0.0658, 0.1047],
[-0.0057, 0.0116, 0.0700],
[-0.0412, 0.0281, -0.0039],
[ 0.1106, 0.1171, 0.1220],
[-0.0248, 0.0682, -0.0481],
[ 0.0815, 0.0846, 0.1207],
[-0.0120, -0.0055, -0.0867],
[-0.0749, -0.0634, -0.0456],
[-0.1418, -0.1457, -0.1259]
]
self.latent_rgb_factors_bias = [0.2394, 0.2135, 0.1925]
self.taesd_decoder_name = "taesd3_decoder"
def process_in(self, latent):
@ -144,325 +139,32 @@ class SD3(LatentFormat):
class StableAudio1(LatentFormat):
latent_channels = 64
latent_dimensions = 1
class Flux(SD3):
latent_channels = 16
def __init__(self):
self.scale_factor = 0.3611
self.shift_factor = 0.1159
self.latent_rgb_factors =[
[-0.0346, 0.0244, 0.0681],
[ 0.0034, 0.0210, 0.0687],
[ 0.0275, -0.0668, -0.0433],
[-0.0174, 0.0160, 0.0617],
[ 0.0859, 0.0721, 0.0329],
[ 0.0004, 0.0383, 0.0115],
[ 0.0405, 0.0861, 0.0915],
[-0.0236, -0.0185, -0.0259],
[-0.0245, 0.0250, 0.1180],
[ 0.1008, 0.0755, -0.0421],
[-0.0515, 0.0201, 0.0011],
[ 0.0428, -0.0012, -0.0036],
[ 0.0817, 0.0765, 0.0749],
[-0.1264, -0.0522, -0.1103],
[-0.0280, -0.0881, -0.0499],
[-0.1262, -0.0982, -0.0778]
[-0.0404, 0.0159, 0.0609],
[ 0.0043, 0.0298, 0.0850],
[ 0.0328, -0.0749, -0.0503],
[-0.0245, 0.0085, 0.0549],
[ 0.0966, 0.0894, 0.0530],
[ 0.0035, 0.0399, 0.0123],
[ 0.0583, 0.1184, 0.1262],
[-0.0191, -0.0206, -0.0306],
[-0.0324, 0.0055, 0.1001],
[ 0.0955, 0.0659, -0.0545],
[-0.0504, 0.0231, -0.0013],
[ 0.0500, -0.0008, -0.0088],
[ 0.0982, 0.0941, 0.0976],
[-0.1233, -0.0280, -0.0897],
[-0.0005, -0.0530, -0.0020],
[-0.1273, -0.0932, -0.0680]
]
self.latent_rgb_factors_bias = [-0.0329, -0.0718, -0.0851]
self.taesd_decoder_name = "taef1_decoder"
def process_in(self, latent):
return (latent - self.shift_factor) * self.scale_factor
def process_out(self, latent):
return (latent / self.scale_factor) + self.shift_factor
class Mochi(LatentFormat):
latent_channels = 12
latent_dimensions = 3
def __init__(self):
self.scale_factor = 1.0
self.latents_mean = torch.tensor([-0.06730895953510081, -0.038011381506090416, -0.07477820912866141,
-0.05565264470995561, 0.012767231469026969, -0.04703542746246419,
0.043896967884726704, -0.09346305707025976, -0.09918314763016893,
-0.008729793427399178, -0.011931556316503654, -0.0321993391887285]).view(1, self.latent_channels, 1, 1, 1)
self.latents_std = torch.tensor([0.9263795028493863, 0.9248894543193766, 0.9393059390890617,
0.959253732819592, 0.8244560132752793, 0.917259975397747,
0.9294154431013696, 1.3720942357788521, 0.881393668867029,
0.9168315692124348, 0.9185249279345552, 0.9274757570805041]).view(1, self.latent_channels, 1, 1, 1)
self.latent_rgb_factors =[
[-0.0069, -0.0045, 0.0018],
[ 0.0154, -0.0692, -0.0274],
[ 0.0333, 0.0019, 0.0206],
[-0.1390, 0.0628, 0.1678],
[-0.0725, 0.0134, -0.1898],
[ 0.0074, -0.0270, -0.0209],
[-0.0176, -0.0277, -0.0221],
[ 0.5294, 0.5204, 0.3852],
[-0.0326, -0.0446, -0.0143],
[-0.0659, 0.0153, -0.0153],
[ 0.0185, -0.0217, 0.0014],
[-0.0396, -0.0495, -0.0281]
]
self.latent_rgb_factors_bias = [-0.0940, -0.1418, -0.1453]
self.taesd_decoder_name = None #TODO
def process_in(self, latent):
latents_mean = self.latents_mean.to(latent.device, latent.dtype)
latents_std = self.latents_std.to(latent.device, latent.dtype)
return (latent - latents_mean) * self.scale_factor / latents_std
def process_out(self, latent):
latents_mean = self.latents_mean.to(latent.device, latent.dtype)
latents_std = self.latents_std.to(latent.device, latent.dtype)
return latent * latents_std / self.scale_factor + latents_mean
class LTXV(LatentFormat):
latent_channels = 128
latent_dimensions = 3
def __init__(self):
self.latent_rgb_factors = [
[ 1.1202e-02, -6.3815e-04, -1.0021e-02],
[ 8.6031e-02, 6.5813e-02, 9.5409e-04],
[-1.2576e-02, -7.5734e-03, -4.0528e-03],
[ 9.4063e-03, -2.1688e-03, 2.6093e-03],
[ 3.7636e-03, 1.2765e-02, 9.1548e-03],
[ 2.1024e-02, -5.2973e-03, 3.4373e-03],
[-8.8896e-03, -1.9703e-02, -1.8761e-02],
[-1.3160e-02, -1.0523e-02, 1.9709e-03],
[-1.5152e-03, -6.9891e-03, -7.5810e-03],
[-1.7247e-03, 4.6560e-04, -3.3839e-03],
[ 1.3617e-02, 4.7077e-03, -2.0045e-03],
[ 1.0256e-02, 7.7318e-03, 1.3948e-02],
[-1.6108e-02, -6.2151e-03, 1.1561e-03],
[ 7.3407e-03, 1.5628e-02, 4.4865e-04],
[ 9.5357e-04, -2.9518e-03, -1.4760e-02],
[ 1.9143e-02, 1.0868e-02, 1.2264e-02],
[ 4.4575e-03, 3.6682e-05, -6.8508e-03],
[-4.5681e-04, 3.2570e-03, 7.7929e-03],
[ 3.3902e-02, 3.3405e-02, 3.7454e-02],
[-2.3001e-02, -2.4877e-03, -3.1033e-03],
[ 5.0265e-02, 3.8841e-02, 3.3539e-02],
[-4.1018e-03, -1.1095e-03, 1.5859e-03],
[-1.2689e-01, -1.3107e-01, -2.1005e-01],
[ 2.6276e-02, 1.4189e-02, -3.5963e-03],
[-4.8679e-03, 8.8486e-03, 7.8029e-03],
[-1.6610e-03, -4.8597e-03, -5.2060e-03],
[-2.1010e-03, 2.3610e-03, 9.3796e-03],
[-2.2482e-02, -2.1305e-02, -1.5087e-02],
[-1.5753e-02, -1.0646e-02, -6.5083e-03],
[-4.6975e-03, 5.0288e-03, -6.7390e-03],
[ 1.1951e-02, 2.0712e-02, 1.6191e-02],
[-6.3704e-03, -8.4827e-03, -9.5483e-03],
[ 7.2610e-03, -9.9326e-03, -2.2978e-02],
[-9.1904e-04, 6.2882e-03, 9.5720e-03],
[-3.7178e-02, -3.7123e-02, -5.6713e-02],
[-1.3373e-01, -1.0720e-01, -5.3801e-02],
[-5.3702e-03, 8.1256e-03, 8.8397e-03],
[-1.5247e-01, -2.1437e-01, -2.1843e-01],
[ 3.1441e-02, 7.0335e-03, -9.7541e-03],
[ 2.1528e-03, -8.9817e-03, -2.1023e-02],
[ 3.8461e-03, -5.8957e-03, -1.5014e-02],
[-4.3470e-03, -1.2940e-02, -1.5972e-02],
[-5.4781e-03, -1.0842e-02, -3.0204e-03],
[-6.5347e-03, 3.0806e-03, -1.0163e-02],
[-5.0414e-03, -7.1503e-03, -8.9686e-04],
[-8.5851e-03, -2.4351e-03, 1.0674e-03],
[-9.0016e-03, -9.6493e-03, 1.5692e-03],
[ 5.0914e-03, 1.2099e-02, 1.9968e-02],
[ 1.3758e-02, 1.1669e-02, 8.1958e-03],
[-1.0518e-02, -1.1575e-02, -4.1307e-03],
[-2.8410e-02, -3.1266e-02, -2.2149e-02],
[ 2.9336e-03, 3.6511e-02, 1.8717e-02],
[-1.6703e-02, -1.6696e-02, -4.4529e-03],
[ 4.8818e-02, 4.0063e-02, 8.7410e-03],
[-1.5066e-02, -5.7328e-04, 2.9785e-03],
[-1.7613e-02, -8.1034e-03, 1.3086e-02],
[-9.2633e-03, 1.0803e-02, -6.3489e-03],
[ 3.0851e-03, 4.7750e-04, 1.2347e-02],
[-2.2785e-02, -2.3043e-02, -2.6005e-02],
[-2.4787e-02, -1.5389e-02, -2.2104e-02],
[-2.3572e-02, 1.0544e-03, 1.2361e-02],
[-7.8915e-03, -1.2271e-03, -6.0968e-03],
[-1.1478e-02, -1.2543e-03, 6.2679e-03],
[-5.4229e-02, 2.6644e-02, 6.3394e-03],
[ 4.4216e-03, -7.3338e-03, -1.0464e-02],
[-4.5013e-03, 1.6082e-03, 1.4420e-02],
[ 1.3673e-02, 8.8877e-03, 4.1253e-03],
[-1.0145e-02, 9.0072e-03, 1.5695e-02],
[-5.6234e-03, 1.1847e-03, 8.1261e-03],
[-3.7171e-03, -5.3538e-03, 1.2590e-03],
[ 2.9476e-02, 2.1424e-02, 3.0424e-02],
[-3.4925e-02, -2.4340e-02, -2.5316e-02],
[-3.4127e-02, -2.2406e-02, -1.0589e-02],
[-1.7342e-02, -1.3249e-02, -1.0719e-02],
[-2.1478e-03, -8.6051e-03, -2.9878e-03],
[ 1.2089e-03, -4.2391e-03, -6.8569e-03],
[ 9.0411e-04, -6.6886e-03, -6.7547e-05],
[ 1.6048e-02, -1.0057e-02, -2.8929e-02],
[ 1.2290e-03, 1.0163e-02, 1.8861e-02],
[ 1.7264e-02, 2.7257e-04, 1.3785e-02],
[-1.3482e-02, -3.6427e-03, 6.7481e-04],
[ 4.6782e-03, -5.2423e-03, 2.4467e-03],
[-5.9113e-03, -6.2244e-03, -1.8162e-03],
[ 1.5496e-02, 1.4582e-02, 1.9514e-03],
[ 7.4958e-03, 1.5886e-03, -8.2305e-03],
[ 1.9086e-02, 1.6360e-03, -3.9674e-03],
[-5.7021e-03, -2.7307e-03, -4.1066e-03],
[ 1.7450e-03, 1.4602e-02, 2.5794e-02],
[-8.2788e-04, 2.2902e-03, 4.5161e-03],
[ 1.1632e-02, 8.9193e-03, -7.2813e-03],
[ 7.5721e-03, 2.6784e-03, 1.1393e-02],
[ 5.1939e-03, 3.6903e-03, 1.4049e-02],
[-1.8383e-02, -2.2529e-02, -2.4477e-02],
[ 5.8842e-04, -5.7874e-03, -1.4770e-02],
[-1.6125e-02, -8.6101e-03, -1.4533e-02],
[ 2.0540e-02, 2.0729e-02, 6.4338e-03],
[ 3.3587e-03, -1.1226e-02, -1.6444e-02],
[-1.4742e-03, -1.0489e-02, 1.7097e-03],
[ 2.8130e-02, 2.3546e-02, 3.2791e-02],
[-1.8532e-02, -1.2842e-02, -8.7756e-03],
[-8.0533e-03, -1.0771e-02, -1.7536e-02],
[-3.9009e-03, 1.6150e-02, 3.3359e-02],
[-7.4554e-03, -1.4154e-02, -6.1910e-03],
[ 3.4734e-03, -1.1370e-02, -1.0581e-02],
[ 1.1476e-02, 3.9281e-03, 2.8231e-03],
[ 7.1639e-03, -1.4741e-03, -3.8066e-03],
[ 2.2250e-03, -8.7552e-03, -9.5719e-03],
[ 2.4146e-02, 2.1696e-02, 2.8056e-02],
[-5.4365e-03, -2.4291e-02, -1.7802e-02],
[ 7.4263e-03, 1.0510e-02, 1.2705e-02],
[ 6.2669e-03, 6.2658e-03, 1.9211e-02],
[ 1.6378e-02, 9.4933e-03, 6.6971e-03],
[ 1.7173e-02, 2.3601e-02, 2.3296e-02],
[-1.4568e-02, -9.8279e-03, -1.1556e-02],
[ 1.4431e-02, 1.4430e-02, 6.6362e-03],
[-6.8230e-03, 1.8863e-02, 1.4555e-02],
[ 6.1156e-03, 3.4700e-03, -2.6662e-03],
[-2.6983e-03, -5.9402e-03, -9.2276e-03],
[ 1.0235e-02, 7.4173e-03, -7.6243e-03],
[-1.3255e-02, 1.9322e-02, -9.2153e-04],
[ 2.4222e-03, -4.8039e-03, -1.5759e-02],
[ 2.6244e-02, 2.5951e-02, 2.0249e-02],
[ 1.5711e-02, 1.8498e-02, 2.7407e-03],
[-2.1714e-03, 4.7214e-03, -2.2443e-02],
[-7.4747e-03, 7.4166e-03, 1.4430e-02],
[-8.3906e-03, -7.9776e-03, 9.7927e-03],
[ 3.8321e-02, 9.6622e-03, -1.9268e-02],
[-1.4605e-02, -6.7032e-03, 3.9675e-03]
]
self.latent_rgb_factors_bias = [-0.0571, -0.1657, -0.2512]
class HunyuanVideo(LatentFormat):
latent_channels = 16
latent_dimensions = 3
scale_factor = 0.476986
latent_rgb_factors = [
[-0.0395, -0.0331, 0.0445],
[ 0.0696, 0.0795, 0.0518],
[ 0.0135, -0.0945, -0.0282],
[ 0.0108, -0.0250, -0.0765],
[-0.0209, 0.0032, 0.0224],
[-0.0804, -0.0254, -0.0639],
[-0.0991, 0.0271, -0.0669],
[-0.0646, -0.0422, -0.0400],
[-0.0696, -0.0595, -0.0894],
[-0.0799, -0.0208, -0.0375],
[ 0.1166, 0.1627, 0.0962],
[ 0.1165, 0.0432, 0.0407],
[-0.2315, -0.1920, -0.1355],
[-0.0270, 0.0401, -0.0821],
[-0.0616, -0.0997, -0.0727],
[ 0.0249, -0.0469, -0.1703]
]
latent_rgb_factors_bias = [ 0.0259, -0.0192, -0.0761]
class Cosmos1CV8x8x8(LatentFormat):
latent_channels = 16
latent_dimensions = 3
latent_rgb_factors = [
[ 0.1817, 0.2284, 0.2423],
[-0.0586, -0.0862, -0.3108],
[-0.4703, -0.4255, -0.3995],
[ 0.0803, 0.1963, 0.1001],
[-0.0820, -0.1050, 0.0400],
[ 0.2511, 0.3098, 0.2787],
[-0.1830, -0.2117, -0.0040],
[-0.0621, -0.2187, -0.0939],
[ 0.3619, 0.1082, 0.1455],
[ 0.3164, 0.3922, 0.2575],
[ 0.1152, 0.0231, -0.0462],
[-0.1434, -0.3609, -0.3665],
[ 0.0635, 0.1471, 0.1680],
[-0.3635, -0.1963, -0.3248],
[-0.1865, 0.0365, 0.2346],
[ 0.0447, 0.0994, 0.0881]
]
latent_rgb_factors_bias = [-0.1223, -0.1889, -0.1976]
class Wan21(LatentFormat):
latent_channels = 16
latent_dimensions = 3
latent_rgb_factors = [
[-0.1299, -0.1692, 0.2932],
[ 0.0671, 0.0406, 0.0442],
[ 0.3568, 0.2548, 0.1747],
[ 0.0372, 0.2344, 0.1420],
[ 0.0313, 0.0189, -0.0328],
[ 0.0296, -0.0956, -0.0665],
[-0.3477, -0.4059, -0.2925],
[ 0.0166, 0.1902, 0.1975],
[-0.0412, 0.0267, -0.1364],
[-0.1293, 0.0740, 0.1636],
[ 0.0680, 0.3019, 0.1128],
[ 0.0032, 0.0581, 0.0639],
[-0.1251, 0.0927, 0.1699],
[ 0.0060, -0.0633, 0.0005],
[ 0.3477, 0.2275, 0.2950],
[ 0.1984, 0.0913, 0.1861]
]
latent_rgb_factors_bias = [-0.1835, -0.0868, -0.3360]
def __init__(self):
self.scale_factor = 1.0
self.latents_mean = torch.tensor([
-0.7571, -0.7089, -0.9113, 0.1075, -0.1745, 0.9653, -0.1517, 1.5508,
0.4134, -0.0715, 0.5517, -0.3632, -0.1922, -0.9497, 0.2503, -0.2921
]).view(1, self.latent_channels, 1, 1, 1)
self.latents_std = torch.tensor([
2.8184, 1.4541, 2.3275, 2.6558, 1.2196, 1.7708, 2.6052, 2.0743,
3.2687, 2.1526, 2.8652, 1.5579, 1.6382, 1.1253, 2.8251, 1.9160
]).view(1, self.latent_channels, 1, 1, 1)
self.taesd_decoder_name = None #TODO
def process_in(self, latent):
latents_mean = self.latents_mean.to(latent.device, latent.dtype)
latents_std = self.latents_std.to(latent.device, latent.dtype)
return (latent - latents_mean) * self.scale_factor / latents_std
def process_out(self, latent):
latents_mean = self.latents_mean.to(latent.device, latent.dtype)
latents_std = self.latents_std.to(latent.device, latent.dtype)
return latent * latents_std / self.scale_factor + latents_mean
class Hunyuan3Dv2(LatentFormat):
latent_channels = 64
latent_dimensions = 1
scale_factor = 0.9990943042622529
class Hunyuan3Dv2mini(LatentFormat):
latent_channels = 64
latent_dimensions = 1
scale_factor = 1.0188137142395404

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@ -2,7 +2,7 @@
import torch
from torch import nn
from typing import Literal
from typing import Literal, Dict, Any
import math
import comfy.ops
ops = comfy.ops.disable_weight_init
@ -97,7 +97,7 @@ def get_activation(activation: Literal["elu", "snake", "none"], antialias=False,
raise ValueError(f"Unknown activation {activation}")
if antialias:
act = Activation1d(act) # noqa: F821 Activation1d is not defined
act = Activation1d(act)
return act

View File

@ -158,6 +158,7 @@ class RotaryEmbedding(nn.Module):
def forward(self, t):
# device = self.inv_freq.device
device = t.device
dtype = t.dtype
# t = t.to(torch.float32)
@ -169,7 +170,7 @@ class RotaryEmbedding(nn.Module):
if self.scale is None:
return freqs, 1.
power = (torch.arange(seq_len, device = device) - (seq_len // 2)) / self.scale_base # noqa: F821 seq_len is not defined
power = (torch.arange(seq_len, device = device) - (seq_len // 2)) / self.scale_base
scale = comfy.ops.cast_to_input(self.scale, t) ** rearrange(power, 'n -> n 1')
scale = torch.cat((scale, scale), dim = -1)
@ -228,9 +229,9 @@ class FeedForward(nn.Module):
linear_in = GLU(dim, inner_dim, activation, dtype=dtype, device=device, operations=operations)
else:
linear_in = nn.Sequential(
rearrange('b n d -> b d n') if use_conv else nn.Identity(),
Rearrange('b n d -> b d n') if use_conv else nn.Identity(),
operations.Linear(dim, inner_dim, bias = not no_bias, dtype=dtype, device=device) if not use_conv else operations.Conv1d(dim, inner_dim, conv_kernel_size, padding = (conv_kernel_size // 2), bias = not no_bias, dtype=dtype, device=device),
rearrange('b n d -> b d n') if use_conv else nn.Identity(),
Rearrange('b n d -> b d n') if use_conv else nn.Identity(),
activation
)
@ -245,9 +246,9 @@ class FeedForward(nn.Module):
self.ff = nn.Sequential(
linear_in,
rearrange('b d n -> b n d') if use_conv else nn.Identity(),
Rearrange('b d n -> b n d') if use_conv else nn.Identity(),
linear_out,
rearrange('b n d -> b d n') if use_conv else nn.Identity(),
Rearrange('b n d -> b d n') if use_conv else nn.Identity(),
)
def forward(self, x):
@ -345,13 +346,18 @@ class Attention(nn.Module):
# determine masking
masks = []
final_attn_mask = None # The mask that will be applied to the attention matrix, taking all masks into account
if input_mask is not None:
input_mask = rearrange(input_mask, 'b j -> b 1 1 j')
masks.append(~input_mask)
# Other masks will be added here later
n = q.shape[-2]
if len(masks) > 0:
final_attn_mask = ~or_reduce(masks)
n, device = q.shape[-2], q.device
causal = self.causal if causal is None else causal
@ -606,9 +612,7 @@ class ContinuousTransformer(nn.Module):
return_info = False,
**kwargs
):
patches_replace = kwargs.get("transformer_options", {}).get("patches_replace", {})
batch, seq, device = *x.shape[:2], x.device
context = kwargs["context"]
info = {
"hidden_states": [],
@ -639,19 +643,9 @@ class ContinuousTransformer(nn.Module):
if self.use_sinusoidal_emb or self.use_abs_pos_emb:
x = x + self.pos_emb(x)
blocks_replace = patches_replace.get("dit", {})
# Iterate over the transformer layers
for i, layer in enumerate(self.layers):
if ("double_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"] = layer(args["img"], rotary_pos_emb=args["pe"], global_cond=args["vec"], context=args["txt"])
return out
out = blocks_replace[("double_block", i)]({"img": x, "txt": context, "vec": global_cond, "pe": rotary_pos_emb}, {"original_block": block_wrap})
x = out["img"]
else:
x = layer(x, rotary_pos_emb = rotary_pos_emb, global_cond=global_cond, context=context)
for layer in self.layers:
x = layer(x, rotary_pos_emb = rotary_pos_emb, global_cond=global_cond, **kwargs)
# x = checkpoint(layer, x, rotary_pos_emb = rotary_pos_emb, global_cond=global_cond, **kwargs)
if return_info:
@ -880,6 +874,7 @@ class AudioDiffusionTransformer(nn.Module):
mask=None,
return_info=False,
control=None,
transformer_options={},
**kwargs):
return self._forward(
x,

View File

@ -2,8 +2,8 @@
import torch
import torch.nn as nn
from torch import Tensor
from typing import List, Union
from torch import Tensor, einsum
from typing import Any, Callable, Dict, List, Optional, Sequence, Tuple, TypeVar, Union
from einops import rearrange
import math
import comfy.ops

View File

@ -147,6 +147,7 @@ class DoubleAttention(nn.Module):
bsz, seqlen1, _ = c.shape
bsz, seqlen2, _ = x.shape
seqlen = seqlen1 + seqlen2
cq, ck, cv = self.w1q(c), self.w1k(c), self.w1v(c)
cq = cq.view(bsz, seqlen1, self.n_heads, self.head_dim)
@ -381,6 +382,7 @@ class MMDiT(nn.Module):
pe_new = pe_as_2d.squeeze(0).permute(1, 2, 0).flatten(0, 1)
self.positional_encoding.data = pe_new.unsqueeze(0).contiguous()
self.h_max, self.w_max = target_dim
print("PE extended to", target_dim)
def pe_selection_index_based_on_dim(self, h, w):
h_p, w_p = h // self.patch_size, w // self.patch_size
@ -435,8 +437,7 @@ class MMDiT(nn.Module):
pos_encoding = pos_encoding[:,from_h:from_h+h,from_w:from_w+w]
return x + pos_encoding.reshape(1, -1, self.positional_encoding.shape[-1])
def forward(self, x, timestep, context, transformer_options={}, **kwargs):
patches_replace = transformer_options.get("patches_replace", {})
def forward(self, x, timestep, context, **kwargs):
# patchify x, add PE
b, c, h, w = x.shape
@ -457,35 +458,14 @@ class MMDiT(nn.Module):
global_cond = self.t_embedder(t, x.dtype) # B, D
blocks_replace = patches_replace.get("dit", {})
if len(self.double_layers) > 0:
for i, layer in enumerate(self.double_layers):
if ("double_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["txt"], out["img"] = layer(args["txt"],
args["img"],
args["vec"])
return out
out = blocks_replace[("double_block", i)]({"img": x, "txt": c, "vec": global_cond}, {"original_block": block_wrap})
c = out["txt"]
x = out["img"]
else:
for layer in self.double_layers:
c, x = layer(c, x, global_cond, **kwargs)
if len(self.single_layers) > 0:
c_len = c.size(1)
cx = torch.cat([c, x], dim=1)
for i, layer in enumerate(self.single_layers):
if ("single_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"] = layer(args["img"], args["vec"])
return out
out = blocks_replace[("single_block", i)]({"img": cx, "vec": global_cond}, {"original_block": block_wrap})
cx = out["img"]
else:
for layer in self.single_layers:
cx = layer(cx, global_cond, **kwargs)
x = cx[:, c_len:]

View File

@ -16,6 +16,7 @@
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
import torch
import torchvision
from torch import nn
from .common import LayerNorm2d_op

View File

@ -19,10 +19,6 @@
import torch
from torch import nn
from torch.autograd import Function
import comfy.ops
ops = comfy.ops.disable_weight_init
class vector_quantize(Function):
@staticmethod
@ -125,15 +121,15 @@ class ResBlock(nn.Module):
self.norm1 = nn.LayerNorm(c, elementwise_affine=False, eps=1e-6)
self.depthwise = nn.Sequential(
nn.ReplicationPad2d(1),
ops.Conv2d(c, c, kernel_size=3, groups=c)
nn.Conv2d(c, c, kernel_size=3, groups=c)
)
# channelwise
self.norm2 = nn.LayerNorm(c, elementwise_affine=False, eps=1e-6)
self.channelwise = nn.Sequential(
ops.Linear(c, c_hidden),
nn.Linear(c, c_hidden),
nn.GELU(),
ops.Linear(c_hidden, c),
nn.Linear(c_hidden, c),
)
self.gammas = nn.Parameter(torch.zeros(6), requires_grad=True)
@ -175,16 +171,16 @@ class StageA(nn.Module):
# Encoder blocks
self.in_block = nn.Sequential(
nn.PixelUnshuffle(2),
ops.Conv2d(3 * 4, c_levels[0], kernel_size=1)
nn.Conv2d(3 * 4, c_levels[0], kernel_size=1)
)
down_blocks = []
for i in range(levels):
if i > 0:
down_blocks.append(ops.Conv2d(c_levels[i - 1], c_levels[i], kernel_size=4, stride=2, padding=1))
down_blocks.append(nn.Conv2d(c_levels[i - 1], c_levels[i], kernel_size=4, stride=2, padding=1))
block = ResBlock(c_levels[i], c_levels[i] * 4)
down_blocks.append(block)
down_blocks.append(nn.Sequential(
ops.Conv2d(c_levels[-1], c_latent, kernel_size=1, bias=False),
nn.Conv2d(c_levels[-1], c_latent, kernel_size=1, bias=False),
nn.BatchNorm2d(c_latent), # then normalize them to have mean 0 and std 1
))
self.down_blocks = nn.Sequential(*down_blocks)
@ -195,7 +191,7 @@ class StageA(nn.Module):
# Decoder blocks
up_blocks = [nn.Sequential(
ops.Conv2d(c_latent, c_levels[-1], kernel_size=1)
nn.Conv2d(c_latent, c_levels[-1], kernel_size=1)
)]
for i in range(levels):
for j in range(bottleneck_blocks if i == 0 else 1):
@ -203,11 +199,11 @@ class StageA(nn.Module):
up_blocks.append(block)
if i < levels - 1:
up_blocks.append(
ops.ConvTranspose2d(c_levels[levels - 1 - i], c_levels[levels - 2 - i], kernel_size=4, stride=2,
nn.ConvTranspose2d(c_levels[levels - 1 - i], c_levels[levels - 2 - i], kernel_size=4, stride=2,
padding=1))
self.up_blocks = nn.Sequential(*up_blocks)
self.out_block = nn.Sequential(
ops.Conv2d(c_levels[0], 3 * 4, kernel_size=1),
nn.Conv2d(c_levels[0], 3 * 4, kernel_size=1),
nn.PixelShuffle(2),
)
@ -236,17 +232,17 @@ class Discriminator(nn.Module):
super().__init__()
d = max(depth - 3, 3)
layers = [
nn.utils.spectral_norm(ops.Conv2d(c_in, c_hidden // (2 ** d), kernel_size=3, stride=2, padding=1)),
nn.utils.spectral_norm(nn.Conv2d(c_in, c_hidden // (2 ** d), kernel_size=3, stride=2, padding=1)),
nn.LeakyReLU(0.2),
]
for i in range(depth - 1):
c_in = c_hidden // (2 ** max((d - i), 0))
c_out = c_hidden // (2 ** max((d - 1 - i), 0))
layers.append(nn.utils.spectral_norm(ops.Conv2d(c_in, c_out, kernel_size=3, stride=2, padding=1)))
layers.append(nn.utils.spectral_norm(nn.Conv2d(c_in, c_out, kernel_size=3, stride=2, padding=1)))
layers.append(nn.InstanceNorm2d(c_out))
layers.append(nn.LeakyReLU(0.2))
self.encoder = nn.Sequential(*layers)
self.shuffle = ops.Conv2d((c_hidden + c_cond) if c_cond > 0 else c_hidden, 1, kernel_size=1)
self.shuffle = nn.Conv2d((c_hidden + c_cond) if c_cond > 0 else c_hidden, 1, kernel_size=1)
self.logits = nn.Sigmoid()
def forward(self, x, cond=None):

View File

@ -19,9 +19,6 @@ import torch
import torchvision
from torch import nn
import comfy.ops
ops = comfy.ops.disable_weight_init
# EfficientNet
class EfficientNetEncoder(nn.Module):
@ -29,7 +26,7 @@ class EfficientNetEncoder(nn.Module):
super().__init__()
self.backbone = torchvision.models.efficientnet_v2_s().features.eval()
self.mapper = nn.Sequential(
ops.Conv2d(1280, c_latent, kernel_size=1, bias=False),
nn.Conv2d(1280, c_latent, kernel_size=1, bias=False),
nn.BatchNorm2d(c_latent, affine=False), # then normalize them to have mean 0 and std 1
)
self.mean = nn.Parameter(torch.tensor([0.485, 0.456, 0.406]))
@ -37,7 +34,7 @@ class EfficientNetEncoder(nn.Module):
def forward(self, x):
x = x * 0.5 + 0.5
x = (x - self.mean.view([3,1,1]).to(device=x.device, dtype=x.dtype)) / self.std.view([3,1,1]).to(device=x.device, dtype=x.dtype)
x = (x - self.mean.view([3,1,1])) / self.std.view([3,1,1])
o = self.mapper(self.backbone(x))
return o
@ -47,39 +44,39 @@ class Previewer(nn.Module):
def __init__(self, c_in=16, c_hidden=512, c_out=3):
super().__init__()
self.blocks = nn.Sequential(
ops.Conv2d(c_in, c_hidden, kernel_size=1), # 16 channels to 512 channels
nn.Conv2d(c_in, c_hidden, kernel_size=1), # 16 channels to 512 channels
nn.GELU(),
nn.BatchNorm2d(c_hidden),
ops.Conv2d(c_hidden, c_hidden, kernel_size=3, padding=1),
nn.Conv2d(c_hidden, c_hidden, kernel_size=3, padding=1),
nn.GELU(),
nn.BatchNorm2d(c_hidden),
ops.ConvTranspose2d(c_hidden, c_hidden // 2, kernel_size=2, stride=2), # 16 -> 32
nn.ConvTranspose2d(c_hidden, c_hidden // 2, kernel_size=2, stride=2), # 16 -> 32
nn.GELU(),
nn.BatchNorm2d(c_hidden // 2),
ops.Conv2d(c_hidden // 2, c_hidden // 2, kernel_size=3, padding=1),
nn.Conv2d(c_hidden // 2, c_hidden // 2, kernel_size=3, padding=1),
nn.GELU(),
nn.BatchNorm2d(c_hidden // 2),
ops.ConvTranspose2d(c_hidden // 2, c_hidden // 4, kernel_size=2, stride=2), # 32 -> 64
nn.ConvTranspose2d(c_hidden // 2, c_hidden // 4, kernel_size=2, stride=2), # 32 -> 64
nn.GELU(),
nn.BatchNorm2d(c_hidden // 4),
ops.Conv2d(c_hidden // 4, c_hidden // 4, kernel_size=3, padding=1),
nn.Conv2d(c_hidden // 4, c_hidden // 4, kernel_size=3, padding=1),
nn.GELU(),
nn.BatchNorm2d(c_hidden // 4),
ops.ConvTranspose2d(c_hidden // 4, c_hidden // 4, kernel_size=2, stride=2), # 64 -> 128
nn.ConvTranspose2d(c_hidden // 4, c_hidden // 4, kernel_size=2, stride=2), # 64 -> 128
nn.GELU(),
nn.BatchNorm2d(c_hidden // 4),
ops.Conv2d(c_hidden // 4, c_hidden // 4, kernel_size=3, padding=1),
nn.Conv2d(c_hidden // 4, c_hidden // 4, kernel_size=3, padding=1),
nn.GELU(),
nn.BatchNorm2d(c_hidden // 4),
ops.Conv2d(c_hidden // 4, c_out, kernel_size=1),
nn.Conv2d(c_hidden // 4, c_out, kernel_size=1),
)
def forward(self, x):

View File

@ -1,16 +1,8 @@
import torch
import comfy.rmsnorm
def pad_to_patch_size(img, patch_size=(2, 2), padding_mode="circular"):
if padding_mode == "circular" and (torch.jit.is_tracing() or torch.jit.is_scripting()):
if padding_mode == "circular" and torch.jit.is_tracing() or torch.jit.is_scripting():
padding_mode = "reflect"
pad = ()
for i in range(img.ndim - 2):
pad = (0, (patch_size[i] - img.shape[i + 2] % patch_size[i]) % patch_size[i]) + pad
return torch.nn.functional.pad(img, pad, mode=padding_mode)
rms_norm = comfy.rmsnorm.rms_norm
pad_h = (patch_size[0] - img.shape[-2] % patch_size[0]) % patch_size[0]
pad_w = (patch_size[1] - img.shape[-1] % patch_size[1]) % patch_size[1]
return torch.nn.functional.pad(img, (0, pad_w, 0, pad_h), mode=padding_mode)

View File

@ -1,808 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import math
from typing import Optional
import logging
import numpy as np
import torch
from einops import rearrange, repeat
from einops.layers.torch import Rearrange
from torch import nn
from comfy.ldm.modules.diffusionmodules.mmdit import RMSNorm
from comfy.ldm.modules.attention import optimized_attention
def apply_rotary_pos_emb(
t: torch.Tensor,
freqs: torch.Tensor,
) -> torch.Tensor:
t_ = t.reshape(*t.shape[:-1], 2, -1).movedim(-2, -1).unsqueeze(-2).float()
t_out = freqs[..., 0] * t_[..., 0] + freqs[..., 1] * t_[..., 1]
t_out = t_out.movedim(-1, -2).reshape(*t.shape).type_as(t)
return t_out
def get_normalization(name: str, channels: int, weight_args={}):
if name == "I":
return nn.Identity()
elif name == "R":
return RMSNorm(channels, elementwise_affine=True, eps=1e-6, **weight_args)
else:
raise ValueError(f"Normalization {name} not found")
class BaseAttentionOp(nn.Module):
def __init__(self):
super().__init__()
class Attention(nn.Module):
"""
Generalized attention impl.
Allowing for both self-attention and cross-attention configurations depending on whether a `context_dim` is provided.
If `context_dim` is None, self-attention is assumed.
Parameters:
query_dim (int): Dimension of each query vector.
context_dim (int, optional): Dimension of each context vector. If None, self-attention is assumed.
heads (int, optional): Number of attention heads. Defaults to 8.
dim_head (int, optional): Dimension of each head. Defaults to 64.
dropout (float, optional): Dropout rate applied to the output of the attention block. Defaults to 0.0.
attn_op (BaseAttentionOp, optional): Custom attention operation to be used instead of the default.
qkv_bias (bool, optional): If True, adds a learnable bias to query, key, and value projections. Defaults to False.
out_bias (bool, optional): If True, adds a learnable bias to the output projection. Defaults to False.
qkv_norm (str, optional): A string representing normalization strategies for query, key, and value projections.
Defaults to "SSI".
qkv_norm_mode (str, optional): A string representing normalization mode for query, key, and value projections.
Defaults to 'per_head'. Only support 'per_head'.
Examples:
>>> attn = Attention(query_dim=128, context_dim=256, heads=4, dim_head=32, dropout=0.1)
>>> query = torch.randn(10, 128) # Batch size of 10
>>> context = torch.randn(10, 256) # Batch size of 10
>>> output = attn(query, context) # Perform the attention operation
Note:
https://github.com/MatthieuTPHR/diffusers/blob/d80b531ff8060ec1ea982b65a1b8df70f73aa67c/src/diffusers/models/attention.py#L223
"""
def __init__(
self,
query_dim: int,
context_dim=None,
heads=8,
dim_head=64,
dropout=0.0,
attn_op: Optional[BaseAttentionOp] = None,
qkv_bias: bool = False,
out_bias: bool = False,
qkv_norm: str = "SSI",
qkv_norm_mode: str = "per_head",
backend: str = "transformer_engine",
qkv_format: str = "bshd",
weight_args={},
operations=None,
) -> None:
super().__init__()
self.is_selfattn = context_dim is None # self attention
inner_dim = dim_head * heads
context_dim = query_dim if context_dim is None else context_dim
self.heads = heads
self.dim_head = dim_head
self.qkv_norm_mode = qkv_norm_mode
self.qkv_format = qkv_format
if self.qkv_norm_mode == "per_head":
norm_dim = dim_head
else:
raise ValueError(f"Normalization mode {self.qkv_norm_mode} not found, only support 'per_head'")
self.backend = backend
self.to_q = nn.Sequential(
operations.Linear(query_dim, inner_dim, bias=qkv_bias, **weight_args),
get_normalization(qkv_norm[0], norm_dim),
)
self.to_k = nn.Sequential(
operations.Linear(context_dim, inner_dim, bias=qkv_bias, **weight_args),
get_normalization(qkv_norm[1], norm_dim),
)
self.to_v = nn.Sequential(
operations.Linear(context_dim, inner_dim, bias=qkv_bias, **weight_args),
get_normalization(qkv_norm[2], norm_dim),
)
self.to_out = nn.Sequential(
operations.Linear(inner_dim, query_dim, bias=out_bias, **weight_args),
nn.Dropout(dropout),
)
def cal_qkv(
self, x, context=None, mask=None, rope_emb=None, **kwargs
) -> tuple[torch.Tensor, torch.Tensor, torch.Tensor]:
del kwargs
"""
self.to_q, self.to_k, self.to_v are nn.Sequential with projection + normalization layers.
Before 07/24/2024, these modules normalize across all heads.
After 07/24/2024, to support tensor parallelism and follow the common practice in the community,
we support to normalize per head.
To keep the checkpoint copatibility with the previous code,
we keep the nn.Sequential but call the projection and the normalization layers separately.
We use a flag `self.qkv_norm_mode` to control the normalization behavior.
The default value of `self.qkv_norm_mode` is "per_head", which means we normalize per head.
"""
if self.qkv_norm_mode == "per_head":
q = self.to_q[0](x)
context = x if context is None else context
k = self.to_k[0](context)
v = self.to_v[0](context)
q, k, v = map(
lambda t: rearrange(t, "s b (n c) -> b n s c", n=self.heads, c=self.dim_head),
(q, k, v),
)
else:
raise ValueError(f"Normalization mode {self.qkv_norm_mode} not found, only support 'per_head'")
q = self.to_q[1](q)
k = self.to_k[1](k)
v = self.to_v[1](v)
if self.is_selfattn and rope_emb is not None: # only apply to self-attention!
# apply_rotary_pos_emb inlined
q_shape = q.shape
q = q.reshape(*q.shape[:-1], 2, -1).movedim(-2, -1).unsqueeze(-2)
q = rope_emb[..., 0] * q[..., 0] + rope_emb[..., 1] * q[..., 1]
q = q.movedim(-1, -2).reshape(*q_shape).to(x.dtype)
# apply_rotary_pos_emb inlined
k_shape = k.shape
k = k.reshape(*k.shape[:-1], 2, -1).movedim(-2, -1).unsqueeze(-2)
k = rope_emb[..., 0] * k[..., 0] + rope_emb[..., 1] * k[..., 1]
k = k.movedim(-1, -2).reshape(*k_shape).to(x.dtype)
return q, k, v
def forward(
self,
x,
context=None,
mask=None,
rope_emb=None,
**kwargs,
):
"""
Args:
x (Tensor): The query tensor of shape [B, Mq, K]
context (Optional[Tensor]): The key tensor of shape [B, Mk, K] or use x as context [self attention] if None
"""
q, k, v = self.cal_qkv(x, context, mask, rope_emb=rope_emb, **kwargs)
out = optimized_attention(q, k, v, self.heads, skip_reshape=True, mask=mask, skip_output_reshape=True)
del q, k, v
out = rearrange(out, " b n s c -> s b (n c)")
return self.to_out(out)
class FeedForward(nn.Module):
"""
Transformer FFN with optional gating
Parameters:
d_model (int): Dimensionality of input features.
d_ff (int): Dimensionality of the hidden layer.
dropout (float, optional): Dropout rate applied after the activation function. Defaults to 0.1.
activation (callable, optional): The activation function applied after the first linear layer.
Defaults to nn.ReLU().
is_gated (bool, optional): If set to True, incorporates gating mechanism to the feed-forward layer.
Defaults to False.
bias (bool, optional): If set to True, adds a bias to the linear layers. Defaults to True.
Example:
>>> ff = FeedForward(d_model=512, d_ff=2048)
>>> x = torch.randn(64, 10, 512) # Example input tensor
>>> output = ff(x)
>>> print(output.shape) # Expected shape: (64, 10, 512)
"""
def __init__(
self,
d_model: int,
d_ff: int,
dropout: float = 0.1,
activation=nn.ReLU(),
is_gated: bool = False,
bias: bool = False,
weight_args={},
operations=None,
) -> None:
super().__init__()
self.layer1 = operations.Linear(d_model, d_ff, bias=bias, **weight_args)
self.layer2 = operations.Linear(d_ff, d_model, bias=bias, **weight_args)
self.dropout = nn.Dropout(dropout)
self.activation = activation
self.is_gated = is_gated
if is_gated:
self.linear_gate = operations.Linear(d_model, d_ff, bias=False, **weight_args)
def forward(self, x: torch.Tensor):
g = self.activation(self.layer1(x))
if self.is_gated:
x = g * self.linear_gate(x)
else:
x = g
assert self.dropout.p == 0.0, "we skip dropout"
return self.layer2(x)
class GPT2FeedForward(FeedForward):
def __init__(self, d_model: int, d_ff: int, dropout: float = 0.1, bias: bool = False, weight_args={}, operations=None):
super().__init__(
d_model=d_model,
d_ff=d_ff,
dropout=dropout,
activation=nn.GELU(),
is_gated=False,
bias=bias,
weight_args=weight_args,
operations=operations,
)
def forward(self, x: torch.Tensor):
assert self.dropout.p == 0.0, "we skip dropout"
x = self.layer1(x)
x = self.activation(x)
x = self.layer2(x)
return x
def modulate(x, shift, scale):
return x * (1 + scale.unsqueeze(1)) + shift.unsqueeze(1)
class Timesteps(nn.Module):
def __init__(self, num_channels):
super().__init__()
self.num_channels = num_channels
def forward(self, timesteps):
half_dim = self.num_channels // 2
exponent = -math.log(10000) * torch.arange(half_dim, dtype=torch.float32, device=timesteps.device)
exponent = exponent / (half_dim - 0.0)
emb = torch.exp(exponent)
emb = timesteps[:, None].float() * emb[None, :]
sin_emb = torch.sin(emb)
cos_emb = torch.cos(emb)
emb = torch.cat([cos_emb, sin_emb], dim=-1)
return emb
class TimestepEmbedding(nn.Module):
def __init__(self, in_features: int, out_features: int, use_adaln_lora: bool = False, weight_args={}, operations=None):
super().__init__()
logging.debug(
f"Using AdaLN LoRA Flag: {use_adaln_lora}. We enable bias if no AdaLN LoRA for backward compatibility."
)
self.linear_1 = operations.Linear(in_features, out_features, bias=not use_adaln_lora, **weight_args)
self.activation = nn.SiLU()
self.use_adaln_lora = use_adaln_lora
if use_adaln_lora:
self.linear_2 = operations.Linear(out_features, 3 * out_features, bias=False, **weight_args)
else:
self.linear_2 = operations.Linear(out_features, out_features, bias=True, **weight_args)
def forward(self, sample: torch.Tensor) -> torch.Tensor:
emb = self.linear_1(sample)
emb = self.activation(emb)
emb = self.linear_2(emb)
if self.use_adaln_lora:
adaln_lora_B_3D = emb
emb_B_D = sample
else:
emb_B_D = emb
adaln_lora_B_3D = None
return emb_B_D, adaln_lora_B_3D
class FourierFeatures(nn.Module):
"""
Implements a layer that generates Fourier features from input tensors, based on randomly sampled
frequencies and phases. This can help in learning high-frequency functions in low-dimensional problems.
[B] -> [B, D]
Parameters:
num_channels (int): The number of Fourier features to generate.
bandwidth (float, optional): The scaling factor for the frequency of the Fourier features. Defaults to 1.
normalize (bool, optional): If set to True, the outputs are scaled by sqrt(2), usually to normalize
the variance of the features. Defaults to False.
Example:
>>> layer = FourierFeatures(num_channels=256, bandwidth=0.5, normalize=True)
>>> x = torch.randn(10, 256) # Example input tensor
>>> output = layer(x)
>>> print(output.shape) # Expected shape: (10, 256)
"""
def __init__(self, num_channels, bandwidth=1, normalize=False):
super().__init__()
self.register_buffer("freqs", 2 * np.pi * bandwidth * torch.randn(num_channels), persistent=True)
self.register_buffer("phases", 2 * np.pi * torch.rand(num_channels), persistent=True)
self.gain = np.sqrt(2) if normalize else 1
def forward(self, x, gain: float = 1.0):
"""
Apply the Fourier feature transformation to the input tensor.
Args:
x (torch.Tensor): The input tensor.
gain (float, optional): An additional gain factor applied during the forward pass. Defaults to 1.
Returns:
torch.Tensor: The transformed tensor, with Fourier features applied.
"""
in_dtype = x.dtype
x = x.to(torch.float32).ger(self.freqs.to(torch.float32)).add(self.phases.to(torch.float32))
x = x.cos().mul(self.gain * gain).to(in_dtype)
return x
class PatchEmbed(nn.Module):
"""
PatchEmbed is a module for embedding patches from an input tensor by applying either 3D or 2D convolutional layers,
depending on the . This module can process inputs with temporal (video) and spatial (image) dimensions,
making it suitable for video and image processing tasks. It supports dividing the input into patches
and embedding each patch into a vector of size `out_channels`.
Parameters:
- spatial_patch_size (int): The size of each spatial patch.
- temporal_patch_size (int): The size of each temporal patch.
- in_channels (int): Number of input channels. Default: 3.
- out_channels (int): The dimension of the embedding vector for each patch. Default: 768.
- bias (bool): If True, adds a learnable bias to the output of the convolutional layers. Default: True.
"""
def __init__(
self,
spatial_patch_size,
temporal_patch_size,
in_channels=3,
out_channels=768,
bias=True,
weight_args={},
operations=None,
):
super().__init__()
self.spatial_patch_size = spatial_patch_size
self.temporal_patch_size = temporal_patch_size
self.proj = nn.Sequential(
Rearrange(
"b c (t r) (h m) (w n) -> b t h w (c r m n)",
r=temporal_patch_size,
m=spatial_patch_size,
n=spatial_patch_size,
),
operations.Linear(
in_channels * spatial_patch_size * spatial_patch_size * temporal_patch_size, out_channels, bias=bias, **weight_args
),
)
self.out = nn.Identity()
def forward(self, x):
"""
Forward pass of the PatchEmbed module.
Parameters:
- x (torch.Tensor): The input tensor of shape (B, C, T, H, W) where
B is the batch size,
C is the number of channels,
T is the temporal dimension,
H is the height, and
W is the width of the input.
Returns:
- torch.Tensor: The embedded patches as a tensor, with shape b t h w c.
"""
assert x.dim() == 5
_, _, T, H, W = x.shape
assert H % self.spatial_patch_size == 0 and W % self.spatial_patch_size == 0
assert T % self.temporal_patch_size == 0
x = self.proj(x)
return self.out(x)
class FinalLayer(nn.Module):
"""
The final layer of video DiT.
"""
def __init__(
self,
hidden_size,
spatial_patch_size,
temporal_patch_size,
out_channels,
use_adaln_lora: bool = False,
adaln_lora_dim: int = 256,
weight_args={},
operations=None,
):
super().__init__()
self.norm_final = operations.LayerNorm(hidden_size, elementwise_affine=False, eps=1e-6, **weight_args)
self.linear = operations.Linear(
hidden_size, spatial_patch_size * spatial_patch_size * temporal_patch_size * out_channels, bias=False, **weight_args
)
self.hidden_size = hidden_size
self.n_adaln_chunks = 2
self.use_adaln_lora = use_adaln_lora
if use_adaln_lora:
self.adaLN_modulation = nn.Sequential(
nn.SiLU(),
operations.Linear(hidden_size, adaln_lora_dim, bias=False, **weight_args),
operations.Linear(adaln_lora_dim, self.n_adaln_chunks * hidden_size, bias=False, **weight_args),
)
else:
self.adaLN_modulation = nn.Sequential(
nn.SiLU(), operations.Linear(hidden_size, self.n_adaln_chunks * hidden_size, bias=False, **weight_args)
)
def forward(
self,
x_BT_HW_D,
emb_B_D,
adaln_lora_B_3D: Optional[torch.Tensor] = None,
):
if self.use_adaln_lora:
assert adaln_lora_B_3D is not None
shift_B_D, scale_B_D = (self.adaLN_modulation(emb_B_D) + adaln_lora_B_3D[:, : 2 * self.hidden_size]).chunk(
2, dim=1
)
else:
shift_B_D, scale_B_D = self.adaLN_modulation(emb_B_D).chunk(2, dim=1)
B = emb_B_D.shape[0]
T = x_BT_HW_D.shape[0] // B
shift_BT_D, scale_BT_D = repeat(shift_B_D, "b d -> (b t) d", t=T), repeat(scale_B_D, "b d -> (b t) d", t=T)
x_BT_HW_D = modulate(self.norm_final(x_BT_HW_D), shift_BT_D, scale_BT_D)
x_BT_HW_D = self.linear(x_BT_HW_D)
return x_BT_HW_D
class VideoAttn(nn.Module):
"""
Implements video attention with optional cross-attention capabilities.
This module processes video features while maintaining their spatio-temporal structure. It can perform
self-attention within the video features or cross-attention with external context features.
Parameters:
x_dim (int): Dimension of input feature vectors
context_dim (Optional[int]): Dimension of context features for cross-attention. None for self-attention
num_heads (int): Number of attention heads
bias (bool): Whether to include bias in attention projections. Default: False
qkv_norm_mode (str): Normalization mode for query/key/value projections. Must be "per_head". Default: "per_head"
x_format (str): Format of input tensor. Must be "BTHWD". Default: "BTHWD"
Input shape:
- x: (T, H, W, B, D) video features
- context (optional): (M, B, D) context features for cross-attention
where:
T: temporal dimension
H: height
W: width
B: batch size
D: feature dimension
M: context sequence length
"""
def __init__(
self,
x_dim: int,
context_dim: Optional[int],
num_heads: int,
bias: bool = False,
qkv_norm_mode: str = "per_head",
x_format: str = "BTHWD",
weight_args={},
operations=None,
) -> None:
super().__init__()
self.x_format = x_format
self.attn = Attention(
x_dim,
context_dim,
num_heads,
x_dim // num_heads,
qkv_bias=bias,
qkv_norm="RRI",
out_bias=bias,
qkv_norm_mode=qkv_norm_mode,
qkv_format="sbhd",
weight_args=weight_args,
operations=operations,
)
def forward(
self,
x: torch.Tensor,
context: Optional[torch.Tensor] = None,
crossattn_mask: Optional[torch.Tensor] = None,
rope_emb_L_1_1_D: Optional[torch.Tensor] = None,
) -> torch.Tensor:
"""
Forward pass for video attention.
Args:
x (Tensor): Input tensor of shape (B, T, H, W, D) or (T, H, W, B, D) representing batches of video data.
context (Tensor): Context tensor of shape (B, M, D) or (M, B, D),
where M is the sequence length of the context.
crossattn_mask (Optional[Tensor]): An optional mask for cross-attention mechanisms.
rope_emb_L_1_1_D (Optional[Tensor]):
Rotary positional embedding tensor of shape (L, 1, 1, D). L == THW for current video training.
Returns:
Tensor: The output tensor with applied attention, maintaining the input shape.
"""
x_T_H_W_B_D = x
context_M_B_D = context
T, H, W, B, D = x_T_H_W_B_D.shape
x_THW_B_D = rearrange(x_T_H_W_B_D, "t h w b d -> (t h w) b d")
x_THW_B_D = self.attn(
x_THW_B_D,
context_M_B_D,
crossattn_mask,
rope_emb=rope_emb_L_1_1_D,
)
x_T_H_W_B_D = rearrange(x_THW_B_D, "(t h w) b d -> t h w b d", h=H, w=W)
return x_T_H_W_B_D
def adaln_norm_state(norm_state, x, scale, shift):
normalized = norm_state(x)
return normalized * (1 + scale) + shift
class DITBuildingBlock(nn.Module):
"""
A building block for the DiT (Diffusion Transformer) architecture that supports different types of
attention and MLP operations with adaptive layer normalization.
Parameters:
block_type (str): Type of block - one of:
- "cross_attn"/"ca": Cross-attention
- "full_attn"/"fa": Full self-attention
- "mlp"/"ff": MLP/feedforward block
x_dim (int): Dimension of input features
context_dim (Optional[int]): Dimension of context features for cross-attention
num_heads (int): Number of attention heads
mlp_ratio (float): MLP hidden dimension multiplier. Default: 4.0
bias (bool): Whether to use bias in layers. Default: False
mlp_dropout (float): Dropout rate for MLP. Default: 0.0
qkv_norm_mode (str): QKV normalization mode. Default: "per_head"
x_format (str): Input tensor format. Default: "BTHWD"
use_adaln_lora (bool): Whether to use AdaLN-LoRA. Default: False
adaln_lora_dim (int): Dimension for AdaLN-LoRA. Default: 256
"""
def __init__(
self,
block_type: str,
x_dim: int,
context_dim: Optional[int],
num_heads: int,
mlp_ratio: float = 4.0,
bias: bool = False,
mlp_dropout: float = 0.0,
qkv_norm_mode: str = "per_head",
x_format: str = "BTHWD",
use_adaln_lora: bool = False,
adaln_lora_dim: int = 256,
weight_args={},
operations=None
) -> None:
block_type = block_type.lower()
super().__init__()
self.x_format = x_format
if block_type in ["cross_attn", "ca"]:
self.block = VideoAttn(
x_dim,
context_dim,
num_heads,
bias=bias,
qkv_norm_mode=qkv_norm_mode,
x_format=self.x_format,
weight_args=weight_args,
operations=operations,
)
elif block_type in ["full_attn", "fa"]:
self.block = VideoAttn(
x_dim, None, num_heads, bias=bias, qkv_norm_mode=qkv_norm_mode, x_format=self.x_format, weight_args=weight_args, operations=operations
)
elif block_type in ["mlp", "ff"]:
self.block = GPT2FeedForward(x_dim, int(x_dim * mlp_ratio), dropout=mlp_dropout, bias=bias, weight_args=weight_args, operations=operations)
else:
raise ValueError(f"Unknown block type: {block_type}")
self.block_type = block_type
self.use_adaln_lora = use_adaln_lora
self.norm_state = nn.LayerNorm(x_dim, elementwise_affine=False, eps=1e-6)
self.n_adaln_chunks = 3
if use_adaln_lora:
self.adaLN_modulation = nn.Sequential(
nn.SiLU(),
operations.Linear(x_dim, adaln_lora_dim, bias=False, **weight_args),
operations.Linear(adaln_lora_dim, self.n_adaln_chunks * x_dim, bias=False, **weight_args),
)
else:
self.adaLN_modulation = nn.Sequential(nn.SiLU(), operations.Linear(x_dim, self.n_adaln_chunks * x_dim, bias=False, **weight_args))
def forward(
self,
x: torch.Tensor,
emb_B_D: torch.Tensor,
crossattn_emb: torch.Tensor,
crossattn_mask: Optional[torch.Tensor] = None,
rope_emb_L_1_1_D: Optional[torch.Tensor] = None,
adaln_lora_B_3D: Optional[torch.Tensor] = None,
) -> torch.Tensor:
"""
Forward pass for dynamically configured blocks with adaptive normalization.
Args:
x (Tensor): Input tensor of shape (B, T, H, W, D) or (T, H, W, B, D).
emb_B_D (Tensor): Embedding tensor for adaptive layer normalization modulation.
crossattn_emb (Tensor): Tensor for cross-attention blocks.
crossattn_mask (Optional[Tensor]): Optional mask for cross-attention.
rope_emb_L_1_1_D (Optional[Tensor]):
Rotary positional embedding tensor of shape (L, 1, 1, D). L == THW for current video training.
Returns:
Tensor: The output tensor after processing through the configured block and adaptive normalization.
"""
if self.use_adaln_lora:
shift_B_D, scale_B_D, gate_B_D = (self.adaLN_modulation(emb_B_D) + adaln_lora_B_3D).chunk(
self.n_adaln_chunks, dim=1
)
else:
shift_B_D, scale_B_D, gate_B_D = self.adaLN_modulation(emb_B_D).chunk(self.n_adaln_chunks, dim=1)
shift_1_1_1_B_D, scale_1_1_1_B_D, gate_1_1_1_B_D = (
shift_B_D.unsqueeze(0).unsqueeze(0).unsqueeze(0),
scale_B_D.unsqueeze(0).unsqueeze(0).unsqueeze(0),
gate_B_D.unsqueeze(0).unsqueeze(0).unsqueeze(0),
)
if self.block_type in ["mlp", "ff"]:
x = x + gate_1_1_1_B_D * self.block(
adaln_norm_state(self.norm_state, x, scale_1_1_1_B_D, shift_1_1_1_B_D),
)
elif self.block_type in ["full_attn", "fa"]:
x = x + gate_1_1_1_B_D * self.block(
adaln_norm_state(self.norm_state, x, scale_1_1_1_B_D, shift_1_1_1_B_D),
context=None,
rope_emb_L_1_1_D=rope_emb_L_1_1_D,
)
elif self.block_type in ["cross_attn", "ca"]:
x = x + gate_1_1_1_B_D * self.block(
adaln_norm_state(self.norm_state, x, scale_1_1_1_B_D, shift_1_1_1_B_D),
context=crossattn_emb,
crossattn_mask=crossattn_mask,
rope_emb_L_1_1_D=rope_emb_L_1_1_D,
)
else:
raise ValueError(f"Unknown block type: {self.block_type}")
return x
class GeneralDITTransformerBlock(nn.Module):
"""
A wrapper module that manages a sequence of DITBuildingBlocks to form a complete transformer layer.
Each block in the sequence is specified by a block configuration string.
Parameters:
x_dim (int): Dimension of input features
context_dim (int): Dimension of context features for cross-attention blocks
num_heads (int): Number of attention heads
block_config (str): String specifying block sequence (e.g. "ca-fa-mlp" for cross-attention,
full-attention, then MLP)
mlp_ratio (float): MLP hidden dimension multiplier. Default: 4.0
x_format (str): Input tensor format. Default: "BTHWD"
use_adaln_lora (bool): Whether to use AdaLN-LoRA. Default: False
adaln_lora_dim (int): Dimension for AdaLN-LoRA. Default: 256
The block_config string uses "-" to separate block types:
- "ca"/"cross_attn": Cross-attention block
- "fa"/"full_attn": Full self-attention block
- "mlp"/"ff": MLP/feedforward block
Example:
block_config = "ca-fa-mlp" creates a sequence of:
1. Cross-attention block
2. Full self-attention block
3. MLP block
"""
def __init__(
self,
x_dim: int,
context_dim: int,
num_heads: int,
block_config: str,
mlp_ratio: float = 4.0,
x_format: str = "BTHWD",
use_adaln_lora: bool = False,
adaln_lora_dim: int = 256,
weight_args={},
operations=None
):
super().__init__()
self.blocks = nn.ModuleList()
self.x_format = x_format
for block_type in block_config.split("-"):
self.blocks.append(
DITBuildingBlock(
block_type,
x_dim,
context_dim,
num_heads,
mlp_ratio,
x_format=self.x_format,
use_adaln_lora=use_adaln_lora,
adaln_lora_dim=adaln_lora_dim,
weight_args=weight_args,
operations=operations,
)
)
def forward(
self,
x: torch.Tensor,
emb_B_D: torch.Tensor,
crossattn_emb: torch.Tensor,
crossattn_mask: Optional[torch.Tensor] = None,
rope_emb_L_1_1_D: Optional[torch.Tensor] = None,
adaln_lora_B_3D: Optional[torch.Tensor] = None,
) -> torch.Tensor:
for block in self.blocks:
x = block(
x,
emb_B_D,
crossattn_emb,
crossattn_mask,
rope_emb_L_1_1_D=rope_emb_L_1_1_D,
adaln_lora_B_3D=adaln_lora_B_3D,
)
return x

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# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""The patcher and unpatcher implementation for 2D and 3D data.
The idea of Haar wavelet is to compute LL, LH, HL, HH component as two 1D convolutions.
One on the rows and one on the columns.
For example, in 1D signal, we have [a, b], then the low-freq compoenent is [a + b] / 2 and high-freq is [a - b] / 2.
We can use a 1D convolution with kernel [1, 1] and stride 2 to represent the L component.
For H component, we can use a 1D convolution with kernel [1, -1] and stride 2.
Although in principle, we typically only do additional Haar wavelet over the LL component. But here we do it for all
as we need to support downsampling for more than 2x.
For example, 4x downsampling can be done by 2x Haar and additional 2x Haar, and the shape would be.
[3, 256, 256] -> [12, 128, 128] -> [48, 64, 64]
"""
import torch
import torch.nn.functional as F
from einops import rearrange
_WAVELETS = {
"haar": torch.tensor([0.7071067811865476, 0.7071067811865476]),
"rearrange": torch.tensor([1.0, 1.0]),
}
_PERSISTENT = False
class Patcher(torch.nn.Module):
"""A module to convert image tensors into patches using torch operations.
The main difference from `class Patching` is that this module implements
all operations using torch, rather than python or numpy, for efficiency purpose.
It's bit-wise identical to the Patching module outputs, with the added
benefit of being torch.jit scriptable.
"""
def __init__(self, patch_size=1, patch_method="haar"):
super().__init__()
self.patch_size = patch_size
self.patch_method = patch_method
self.register_buffer(
"wavelets", _WAVELETS[patch_method], persistent=_PERSISTENT
)
self.range = range(int(torch.log2(torch.tensor(self.patch_size)).item()))
self.register_buffer(
"_arange",
torch.arange(_WAVELETS[patch_method].shape[0]),
persistent=_PERSISTENT,
)
for param in self.parameters():
param.requires_grad = False
def forward(self, x):
if self.patch_method == "haar":
return self._haar(x)
elif self.patch_method == "rearrange":
return self._arrange(x)
else:
raise ValueError("Unknown patch method: " + self.patch_method)
def _dwt(self, x, mode="reflect", rescale=False):
dtype = x.dtype
h = self.wavelets.to(device=x.device)
n = h.shape[0]
g = x.shape[1]
hl = h.flip(0).reshape(1, 1, -1).repeat(g, 1, 1)
hh = (h * ((-1) ** self._arange.to(device=x.device))).reshape(1, 1, -1).repeat(g, 1, 1)
hh = hh.to(dtype=dtype)
hl = hl.to(dtype=dtype)
x = F.pad(x, pad=(n - 2, n - 1, n - 2, n - 1), mode=mode).to(dtype)
xl = F.conv2d(x, hl.unsqueeze(2), groups=g, stride=(1, 2))
xh = F.conv2d(x, hh.unsqueeze(2), groups=g, stride=(1, 2))
xll = F.conv2d(xl, hl.unsqueeze(3), groups=g, stride=(2, 1))
xlh = F.conv2d(xl, hh.unsqueeze(3), groups=g, stride=(2, 1))
xhl = F.conv2d(xh, hl.unsqueeze(3), groups=g, stride=(2, 1))
xhh = F.conv2d(xh, hh.unsqueeze(3), groups=g, stride=(2, 1))
out = torch.cat([xll, xlh, xhl, xhh], dim=1)
if rescale:
out = out / 2
return out
def _haar(self, x):
for _ in self.range:
x = self._dwt(x, rescale=True)
return x
def _arrange(self, x):
x = rearrange(
x,
"b c (h p1) (w p2) -> b (c p1 p2) h w",
p1=self.patch_size,
p2=self.patch_size,
).contiguous()
return x
class Patcher3D(Patcher):
"""A 3D discrete wavelet transform for video data, expects 5D tensor, i.e. a batch of videos."""
def __init__(self, patch_size=1, patch_method="haar"):
super().__init__(patch_method=patch_method, patch_size=patch_size)
self.register_buffer(
"patch_size_buffer",
patch_size * torch.ones([1], dtype=torch.int32),
persistent=_PERSISTENT,
)
def _dwt(self, x, wavelet, mode="reflect", rescale=False):
dtype = x.dtype
h = self.wavelets.to(device=x.device)
n = h.shape[0]
g = x.shape[1]
hl = h.flip(0).reshape(1, 1, -1).repeat(g, 1, 1)
hh = (h * ((-1) ** self._arange.to(device=x.device))).reshape(1, 1, -1).repeat(g, 1, 1)
hh = hh.to(dtype=dtype)
hl = hl.to(dtype=dtype)
# Handles temporal axis.
x = F.pad(
x, pad=(max(0, n - 2), n - 1, n - 2, n - 1, n - 2, n - 1), mode=mode
).to(dtype)
xl = F.conv3d(x, hl.unsqueeze(3).unsqueeze(4), groups=g, stride=(2, 1, 1))
xh = F.conv3d(x, hh.unsqueeze(3).unsqueeze(4), groups=g, stride=(2, 1, 1))
# Handles spatial axes.
xll = F.conv3d(xl, hl.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1))
xlh = F.conv3d(xl, hh.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1))
xhl = F.conv3d(xh, hl.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1))
xhh = F.conv3d(xh, hh.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1))
xlll = F.conv3d(xll, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xllh = F.conv3d(xll, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xlhl = F.conv3d(xlh, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xlhh = F.conv3d(xlh, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xhll = F.conv3d(xhl, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xhlh = F.conv3d(xhl, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xhhl = F.conv3d(xhh, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
xhhh = F.conv3d(xhh, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2))
out = torch.cat([xlll, xllh, xlhl, xlhh, xhll, xhlh, xhhl, xhhh], dim=1)
if rescale:
out = out / (2 * torch.sqrt(torch.tensor(2.0)))
return out
def _haar(self, x):
xi, xv = torch.split(x, [1, x.shape[2] - 1], dim=2)
x = torch.cat([xi.repeat_interleave(self.patch_size, dim=2), xv], dim=2)
for _ in self.range:
x = self._dwt(x, "haar", rescale=True)
return x
def _arrange(self, x):
xi, xv = torch.split(x, [1, x.shape[2] - 1], dim=2)
x = torch.cat([xi.repeat_interleave(self.patch_size, dim=2), xv], dim=2)
x = rearrange(
x,
"b c (t p1) (h p2) (w p3) -> b (c p1 p2 p3) t h w",
p1=self.patch_size,
p2=self.patch_size,
p3=self.patch_size,
).contiguous()
return x
class UnPatcher(torch.nn.Module):
"""A module to convert patches into image tensorsusing torch operations.
The main difference from `class Unpatching` is that this module implements
all operations using torch, rather than python or numpy, for efficiency purpose.
It's bit-wise identical to the Unpatching module outputs, with the added
benefit of being torch.jit scriptable.
"""
def __init__(self, patch_size=1, patch_method="haar"):
super().__init__()
self.patch_size = patch_size
self.patch_method = patch_method
self.register_buffer(
"wavelets", _WAVELETS[patch_method], persistent=_PERSISTENT
)
self.range = range(int(torch.log2(torch.tensor(self.patch_size)).item()))
self.register_buffer(
"_arange",
torch.arange(_WAVELETS[patch_method].shape[0]),
persistent=_PERSISTENT,
)
for param in self.parameters():
param.requires_grad = False
def forward(self, x):
if self.patch_method == "haar":
return self._ihaar(x)
elif self.patch_method == "rearrange":
return self._iarrange(x)
else:
raise ValueError("Unknown patch method: " + self.patch_method)
def _idwt(self, x, wavelet="haar", mode="reflect", rescale=False):
dtype = x.dtype
h = self.wavelets.to(device=x.device)
n = h.shape[0]
g = x.shape[1] // 4
hl = h.flip([0]).reshape(1, 1, -1).repeat([g, 1, 1])
hh = (h * ((-1) ** self._arange.to(device=x.device))).reshape(1, 1, -1).repeat(g, 1, 1)
hh = hh.to(dtype=dtype)
hl = hl.to(dtype=dtype)
xll, xlh, xhl, xhh = torch.chunk(x.to(dtype), 4, dim=1)
# Inverse transform.
yl = torch.nn.functional.conv_transpose2d(
xll, hl.unsqueeze(3), groups=g, stride=(2, 1), padding=(n - 2, 0)
)
yl += torch.nn.functional.conv_transpose2d(
xlh, hh.unsqueeze(3), groups=g, stride=(2, 1), padding=(n - 2, 0)
)
yh = torch.nn.functional.conv_transpose2d(
xhl, hl.unsqueeze(3), groups=g, stride=(2, 1), padding=(n - 2, 0)
)
yh += torch.nn.functional.conv_transpose2d(
xhh, hh.unsqueeze(3), groups=g, stride=(2, 1), padding=(n - 2, 0)
)
y = torch.nn.functional.conv_transpose2d(
yl, hl.unsqueeze(2), groups=g, stride=(1, 2), padding=(0, n - 2)
)
y += torch.nn.functional.conv_transpose2d(
yh, hh.unsqueeze(2), groups=g, stride=(1, 2), padding=(0, n - 2)
)
if rescale:
y = y * 2
return y
def _ihaar(self, x):
for _ in self.range:
x = self._idwt(x, "haar", rescale=True)
return x
def _iarrange(self, x):
x = rearrange(
x,
"b (c p1 p2) h w -> b c (h p1) (w p2)",
p1=self.patch_size,
p2=self.patch_size,
)
return x
class UnPatcher3D(UnPatcher):
"""A 3D inverse discrete wavelet transform for video wavelet decompositions."""
def __init__(self, patch_size=1, patch_method="haar"):
super().__init__(patch_method=patch_method, patch_size=patch_size)
def _idwt(self, x, wavelet="haar", mode="reflect", rescale=False):
dtype = x.dtype
h = self.wavelets.to(device=x.device)
g = x.shape[1] // 8 # split into 8 spatio-temporal filtered tesnors.
hl = h.flip([0]).reshape(1, 1, -1).repeat([g, 1, 1])
hh = (h * ((-1) ** self._arange.to(device=x.device))).reshape(1, 1, -1).repeat(g, 1, 1)
hl = hl.to(dtype=dtype)
hh = hh.to(dtype=dtype)
xlll, xllh, xlhl, xlhh, xhll, xhlh, xhhl, xhhh = torch.chunk(x, 8, dim=1)
del x
# Height height transposed convolutions.
xll = F.conv_transpose3d(
xlll, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xlll
xll += F.conv_transpose3d(
xllh, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xllh
xlh = F.conv_transpose3d(
xlhl, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xlhl
xlh += F.conv_transpose3d(
xlhh, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xlhh
xhl = F.conv_transpose3d(
xhll, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xhll
xhl += F.conv_transpose3d(
xhlh, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xhlh
xhh = F.conv_transpose3d(
xhhl, hl.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xhhl
xhh += F.conv_transpose3d(
xhhh, hh.unsqueeze(2).unsqueeze(3), groups=g, stride=(1, 1, 2)
)
del xhhh
# Handles width transposed convolutions.
xl = F.conv_transpose3d(
xll, hl.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1)
)
del xll
xl += F.conv_transpose3d(
xlh, hh.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1)
)
del xlh
xh = F.conv_transpose3d(
xhl, hl.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1)
)
del xhl
xh += F.conv_transpose3d(
xhh, hh.unsqueeze(2).unsqueeze(4), groups=g, stride=(1, 2, 1)
)
del xhh
# Handles time axis transposed convolutions.
x = F.conv_transpose3d(
xl, hl.unsqueeze(3).unsqueeze(4), groups=g, stride=(2, 1, 1)
)
del xl
x += F.conv_transpose3d(
xh, hh.unsqueeze(3).unsqueeze(4), groups=g, stride=(2, 1, 1)
)
if rescale:
x = x * (2 * torch.sqrt(torch.tensor(2.0)))
return x
def _ihaar(self, x):
for _ in self.range:
x = self._idwt(x, "haar", rescale=True)
x = x[:, :, self.patch_size - 1 :, ...]
return x
def _iarrange(self, x):
x = rearrange(
x,
"b (c p1 p2 p3) t h w -> b c (t p1) (h p2) (w p3)",
p1=self.patch_size,
p2=self.patch_size,
p3=self.patch_size,
)
x = x[:, :, self.patch_size - 1 :, ...]
return x

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@ -1,112 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Shared utilities for the networks module."""
from typing import Any
import torch
from einops import rearrange
import comfy.ops
ops = comfy.ops.disable_weight_init
def time2batch(x: torch.Tensor) -> tuple[torch.Tensor, int]:
batch_size = x.shape[0]
return rearrange(x, "b c t h w -> (b t) c h w"), batch_size
def batch2time(x: torch.Tensor, batch_size: int) -> torch.Tensor:
return rearrange(x, "(b t) c h w -> b c t h w", b=batch_size)
def space2batch(x: torch.Tensor) -> tuple[torch.Tensor, int]:
batch_size, height = x.shape[0], x.shape[-2]
return rearrange(x, "b c t h w -> (b h w) c t"), batch_size, height
def batch2space(x: torch.Tensor, batch_size: int, height: int) -> torch.Tensor:
return rearrange(x, "(b h w) c t -> b c t h w", b=batch_size, h=height)
def cast_tuple(t: Any, length: int = 1) -> Any:
return t if isinstance(t, tuple) else ((t,) * length)
def replication_pad(x):
return torch.cat([x[:, :, :1, ...], x], dim=2)
def divisible_by(num: int, den: int) -> bool:
return (num % den) == 0
def is_odd(n: int) -> bool:
return not divisible_by(n, 2)
def nonlinearity(x):
return x * torch.sigmoid(x)
def Normalize(in_channels, num_groups=32):
return ops.GroupNorm(
num_groups=num_groups, num_channels=in_channels, eps=1e-6, affine=True
)
class CausalNormalize(torch.nn.Module):
def __init__(self, in_channels, num_groups=1):
super().__init__()
self.norm = ops.GroupNorm(
num_groups=num_groups,
num_channels=in_channels,
eps=1e-6,
affine=True,
)
self.num_groups = num_groups
def forward(self, x):
# if num_groups !=1, we apply a spatio-temporal groupnorm for backward compatibility purpose.
# All new models should use num_groups=1, otherwise causality is not guaranteed.
if self.num_groups == 1:
x, batch_size = time2batch(x)
return batch2time(self.norm(x), batch_size)
return self.norm(x)
def exists(v):
return v is not None
def default(*args):
for arg in args:
if exists(arg):
return arg
return None
def round_ste(z: torch.Tensor) -> torch.Tensor:
"""Round with straight through gradients."""
zhat = z.round()
return z + (zhat - z).detach()
def log(t, eps=1e-5):
return t.clamp(min=eps).log()
def entropy(prob):
return (-prob * log(prob)).sum(dim=-1)

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@ -1,514 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
A general implementation of adaln-modulated VIT-like~(DiT) transformer for video processing.
"""
from typing import Optional, Tuple
import torch
from einops import rearrange
from torch import nn
from torchvision import transforms
from enum import Enum
import logging
from comfy.ldm.modules.diffusionmodules.mmdit import RMSNorm
from .blocks import (
FinalLayer,
GeneralDITTransformerBlock,
PatchEmbed,
TimestepEmbedding,
Timesteps,
)
from .position_embedding import LearnablePosEmbAxis, VideoRopePosition3DEmb
class DataType(Enum):
IMAGE = "image"
VIDEO = "video"
class GeneralDIT(nn.Module):
"""
A general implementation of adaln-modulated VIT-like~(DiT) transformer for video processing.
Args:
max_img_h (int): Maximum height of the input images.
max_img_w (int): Maximum width of the input images.
max_frames (int): Maximum number of frames in the video sequence.
in_channels (int): Number of input channels (e.g., RGB channels for color images).
out_channels (int): Number of output channels.
patch_spatial (tuple): Spatial resolution of patches for input processing.
patch_temporal (int): Temporal resolution of patches for input processing.
concat_padding_mask (bool): If True, includes a mask channel in the input to handle padding.
block_config (str): Configuration of the transformer block. See Notes for supported block types.
model_channels (int): Base number of channels used throughout the model.
num_blocks (int): Number of transformer blocks.
num_heads (int): Number of heads in the multi-head attention layers.
mlp_ratio (float): Expansion ratio for MLP blocks.
block_x_format (str): Format of input tensor for transformer blocks ('BTHWD' or 'THWBD').
crossattn_emb_channels (int): Number of embedding channels for cross-attention.
use_cross_attn_mask (bool): Whether to use mask in cross-attention.
pos_emb_cls (str): Type of positional embeddings.
pos_emb_learnable (bool): Whether positional embeddings are learnable.
pos_emb_interpolation (str): Method for interpolating positional embeddings.
affline_emb_norm (bool): Whether to normalize affine embeddings.
use_adaln_lora (bool): Whether to use AdaLN-LoRA.
adaln_lora_dim (int): Dimension for AdaLN-LoRA.
rope_h_extrapolation_ratio (float): Height extrapolation ratio for RoPE.
rope_w_extrapolation_ratio (float): Width extrapolation ratio for RoPE.
rope_t_extrapolation_ratio (float): Temporal extrapolation ratio for RoPE.
extra_per_block_abs_pos_emb (bool): Whether to use extra per-block absolute positional embeddings.
extra_per_block_abs_pos_emb_type (str): Type of extra per-block positional embeddings.
extra_h_extrapolation_ratio (float): Height extrapolation ratio for extra embeddings.
extra_w_extrapolation_ratio (float): Width extrapolation ratio for extra embeddings.
extra_t_extrapolation_ratio (float): Temporal extrapolation ratio for extra embeddings.
Notes:
Supported block types in block_config:
* cross_attn, ca: Cross attention
* full_attn: Full attention on all flattened tokens
* mlp, ff: Feed forward block
"""
def __init__(
self,
max_img_h: int,
max_img_w: int,
max_frames: int,
in_channels: int,
out_channels: int,
patch_spatial: tuple,
patch_temporal: int,
concat_padding_mask: bool = True,
# attention settings
block_config: str = "FA-CA-MLP",
model_channels: int = 768,
num_blocks: int = 10,
num_heads: int = 16,
mlp_ratio: float = 4.0,
block_x_format: str = "BTHWD",
# cross attention settings
crossattn_emb_channels: int = 1024,
use_cross_attn_mask: bool = False,
# positional embedding settings
pos_emb_cls: str = "sincos",
pos_emb_learnable: bool = False,
pos_emb_interpolation: str = "crop",
affline_emb_norm: bool = False, # whether or not to normalize the affine embedding
use_adaln_lora: bool = False,
adaln_lora_dim: int = 256,
rope_h_extrapolation_ratio: float = 1.0,
rope_w_extrapolation_ratio: float = 1.0,
rope_t_extrapolation_ratio: float = 1.0,
extra_per_block_abs_pos_emb: bool = False,
extra_per_block_abs_pos_emb_type: str = "sincos",
extra_h_extrapolation_ratio: float = 1.0,
extra_w_extrapolation_ratio: float = 1.0,
extra_t_extrapolation_ratio: float = 1.0,
image_model=None,
device=None,
dtype=None,
operations=None,
) -> None:
super().__init__()
self.max_img_h = max_img_h
self.max_img_w = max_img_w
self.max_frames = max_frames
self.in_channels = in_channels
self.out_channels = out_channels
self.patch_spatial = patch_spatial
self.patch_temporal = patch_temporal
self.num_heads = num_heads
self.num_blocks = num_blocks
self.model_channels = model_channels
self.use_cross_attn_mask = use_cross_attn_mask
self.concat_padding_mask = concat_padding_mask
# positional embedding settings
self.pos_emb_cls = pos_emb_cls
self.pos_emb_learnable = pos_emb_learnable
self.pos_emb_interpolation = pos_emb_interpolation
self.affline_emb_norm = affline_emb_norm
self.rope_h_extrapolation_ratio = rope_h_extrapolation_ratio
self.rope_w_extrapolation_ratio = rope_w_extrapolation_ratio
self.rope_t_extrapolation_ratio = rope_t_extrapolation_ratio
self.extra_per_block_abs_pos_emb = extra_per_block_abs_pos_emb
self.extra_per_block_abs_pos_emb_type = extra_per_block_abs_pos_emb_type.lower()
self.extra_h_extrapolation_ratio = extra_h_extrapolation_ratio
self.extra_w_extrapolation_ratio = extra_w_extrapolation_ratio
self.extra_t_extrapolation_ratio = extra_t_extrapolation_ratio
self.dtype = dtype
weight_args = {"device": device, "dtype": dtype}
in_channels = in_channels + 1 if concat_padding_mask else in_channels
self.x_embedder = PatchEmbed(
spatial_patch_size=patch_spatial,
temporal_patch_size=patch_temporal,
in_channels=in_channels,
out_channels=model_channels,
bias=False,
weight_args=weight_args,
operations=operations,
)
self.build_pos_embed(device=device, dtype=dtype)
self.block_x_format = block_x_format
self.use_adaln_lora = use_adaln_lora
self.adaln_lora_dim = adaln_lora_dim
self.t_embedder = nn.ModuleList(
[Timesteps(model_channels),
TimestepEmbedding(model_channels, model_channels, use_adaln_lora=use_adaln_lora, weight_args=weight_args, operations=operations),]
)
self.blocks = nn.ModuleDict()
for idx in range(num_blocks):
self.blocks[f"block{idx}"] = GeneralDITTransformerBlock(
x_dim=model_channels,
context_dim=crossattn_emb_channels,
num_heads=num_heads,
block_config=block_config,
mlp_ratio=mlp_ratio,
x_format=self.block_x_format,
use_adaln_lora=use_adaln_lora,
adaln_lora_dim=adaln_lora_dim,
weight_args=weight_args,
operations=operations,
)
if self.affline_emb_norm:
logging.debug("Building affine embedding normalization layer")
self.affline_norm = RMSNorm(model_channels, elementwise_affine=True, eps=1e-6)
else:
self.affline_norm = nn.Identity()
self.final_layer = FinalLayer(
hidden_size=self.model_channels,
spatial_patch_size=self.patch_spatial,
temporal_patch_size=self.patch_temporal,
out_channels=self.out_channels,
use_adaln_lora=self.use_adaln_lora,
adaln_lora_dim=self.adaln_lora_dim,
weight_args=weight_args,
operations=operations,
)
def build_pos_embed(self, device=None, dtype=None):
if self.pos_emb_cls == "rope3d":
cls_type = VideoRopePosition3DEmb
else:
raise ValueError(f"Unknown pos_emb_cls {self.pos_emb_cls}")
logging.debug(f"Building positional embedding with {self.pos_emb_cls} class, impl {cls_type}")
kwargs = dict(
model_channels=self.model_channels,
len_h=self.max_img_h // self.patch_spatial,
len_w=self.max_img_w // self.patch_spatial,
len_t=self.max_frames // self.patch_temporal,
is_learnable=self.pos_emb_learnable,
interpolation=self.pos_emb_interpolation,
head_dim=self.model_channels // self.num_heads,
h_extrapolation_ratio=self.rope_h_extrapolation_ratio,
w_extrapolation_ratio=self.rope_w_extrapolation_ratio,
t_extrapolation_ratio=self.rope_t_extrapolation_ratio,
device=device,
)
self.pos_embedder = cls_type(
**kwargs,
)
if self.extra_per_block_abs_pos_emb:
assert self.extra_per_block_abs_pos_emb_type in [
"learnable",
], f"Unknown extra_per_block_abs_pos_emb_type {self.extra_per_block_abs_pos_emb_type}"
kwargs["h_extrapolation_ratio"] = self.extra_h_extrapolation_ratio
kwargs["w_extrapolation_ratio"] = self.extra_w_extrapolation_ratio
kwargs["t_extrapolation_ratio"] = self.extra_t_extrapolation_ratio
kwargs["device"] = device
kwargs["dtype"] = dtype
self.extra_pos_embedder = LearnablePosEmbAxis(
**kwargs,
)
def prepare_embedded_sequence(
self,
x_B_C_T_H_W: torch.Tensor,
fps: Optional[torch.Tensor] = None,
padding_mask: Optional[torch.Tensor] = None,
latent_condition: Optional[torch.Tensor] = None,
latent_condition_sigma: Optional[torch.Tensor] = None,
) -> Tuple[torch.Tensor, Optional[torch.Tensor]]:
"""
Prepares an embedded sequence tensor by applying positional embeddings and handling padding masks.
Args:
x_B_C_T_H_W (torch.Tensor): video
fps (Optional[torch.Tensor]): Frames per second tensor to be used for positional embedding when required.
If None, a default value (`self.base_fps`) will be used.
padding_mask (Optional[torch.Tensor]): current it is not used
Returns:
Tuple[torch.Tensor, Optional[torch.Tensor]]:
- A tensor of shape (B, T, H, W, D) with the embedded sequence.
- An optional positional embedding tensor, returned only if the positional embedding class
(`self.pos_emb_cls`) includes 'rope'. Otherwise, None.
Notes:
- If `self.concat_padding_mask` is True, a padding mask channel is concatenated to the input tensor.
- The method of applying positional embeddings depends on the value of `self.pos_emb_cls`.
- If 'rope' is in `self.pos_emb_cls` (case insensitive), the positional embeddings are generated using
the `self.pos_embedder` with the shape [T, H, W].
- If "fps_aware" is in `self.pos_emb_cls`, the positional embeddings are generated using the
`self.pos_embedder` with the fps tensor.
- Otherwise, the positional embeddings are generated without considering fps.
"""
if self.concat_padding_mask:
if padding_mask is not None:
padding_mask = transforms.functional.resize(
padding_mask, list(x_B_C_T_H_W.shape[-2:]), interpolation=transforms.InterpolationMode.NEAREST
)
else:
padding_mask = torch.zeros((x_B_C_T_H_W.shape[0], 1, x_B_C_T_H_W.shape[-2], x_B_C_T_H_W.shape[-1]), dtype=x_B_C_T_H_W.dtype, device=x_B_C_T_H_W.device)
x_B_C_T_H_W = torch.cat(
[x_B_C_T_H_W, padding_mask.unsqueeze(1).repeat(1, 1, x_B_C_T_H_W.shape[2], 1, 1)], dim=1
)
x_B_T_H_W_D = self.x_embedder(x_B_C_T_H_W)
if self.extra_per_block_abs_pos_emb:
extra_pos_emb = self.extra_pos_embedder(x_B_T_H_W_D, fps=fps, device=x_B_C_T_H_W.device, dtype=x_B_C_T_H_W.dtype)
else:
extra_pos_emb = None
if "rope" in self.pos_emb_cls.lower():
return x_B_T_H_W_D, self.pos_embedder(x_B_T_H_W_D, fps=fps, device=x_B_C_T_H_W.device), extra_pos_emb
if "fps_aware" in self.pos_emb_cls:
x_B_T_H_W_D = x_B_T_H_W_D + self.pos_embedder(x_B_T_H_W_D, fps=fps, device=x_B_C_T_H_W.device) # [B, T, H, W, D]
else:
x_B_T_H_W_D = x_B_T_H_W_D + self.pos_embedder(x_B_T_H_W_D, device=x_B_C_T_H_W.device) # [B, T, H, W, D]
return x_B_T_H_W_D, None, extra_pos_emb
def decoder_head(
self,
x_B_T_H_W_D: torch.Tensor,
emb_B_D: torch.Tensor,
crossattn_emb: torch.Tensor,
origin_shape: Tuple[int, int, int, int, int], # [B, C, T, H, W]
crossattn_mask: Optional[torch.Tensor] = None,
adaln_lora_B_3D: Optional[torch.Tensor] = None,
) -> torch.Tensor:
del crossattn_emb, crossattn_mask
B, C, T_before_patchify, H_before_patchify, W_before_patchify = origin_shape
x_BT_HW_D = rearrange(x_B_T_H_W_D, "B T H W D -> (B T) (H W) D")
x_BT_HW_D = self.final_layer(x_BT_HW_D, emb_B_D, adaln_lora_B_3D=adaln_lora_B_3D)
# This is to ensure x_BT_HW_D has the correct shape because
# when we merge T, H, W into one dimension, x_BT_HW_D has shape (B * T * H * W, 1*1, D).
x_BT_HW_D = x_BT_HW_D.view(
B * T_before_patchify // self.patch_temporal,
H_before_patchify // self.patch_spatial * W_before_patchify // self.patch_spatial,
-1,
)
x_B_D_T_H_W = rearrange(
x_BT_HW_D,
"(B T) (H W) (p1 p2 t C) -> B C (T t) (H p1) (W p2)",
p1=self.patch_spatial,
p2=self.patch_spatial,
H=H_before_patchify // self.patch_spatial,
W=W_before_patchify // self.patch_spatial,
t=self.patch_temporal,
B=B,
)
return x_B_D_T_H_W
def forward_before_blocks(
self,
x: torch.Tensor,
timesteps: torch.Tensor,
crossattn_emb: torch.Tensor,
crossattn_mask: Optional[torch.Tensor] = None,
fps: Optional[torch.Tensor] = None,
image_size: Optional[torch.Tensor] = None,
padding_mask: Optional[torch.Tensor] = None,
scalar_feature: Optional[torch.Tensor] = None,
data_type: Optional[DataType] = DataType.VIDEO,
latent_condition: Optional[torch.Tensor] = None,
latent_condition_sigma: Optional[torch.Tensor] = None,
**kwargs,
) -> torch.Tensor:
"""
Args:
x: (B, C, T, H, W) tensor of spatial-temp inputs
timesteps: (B, ) tensor of timesteps
crossattn_emb: (B, N, D) tensor of cross-attention embeddings
crossattn_mask: (B, N) tensor of cross-attention masks
"""
del kwargs
assert isinstance(
data_type, DataType
), f"Expected DataType, got {type(data_type)}. We need discuss this flag later."
original_shape = x.shape
x_B_T_H_W_D, rope_emb_L_1_1_D, extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D = self.prepare_embedded_sequence(
x,
fps=fps,
padding_mask=padding_mask,
latent_condition=latent_condition,
latent_condition_sigma=latent_condition_sigma,
)
# logging affline scale information
affline_scale_log_info = {}
timesteps_B_D, adaln_lora_B_3D = self.t_embedder[1](self.t_embedder[0](timesteps.flatten()).to(x.dtype))
affline_emb_B_D = timesteps_B_D
affline_scale_log_info["timesteps_B_D"] = timesteps_B_D.detach()
if scalar_feature is not None:
raise NotImplementedError("Scalar feature is not implemented yet.")
affline_scale_log_info["affline_emb_B_D"] = affline_emb_B_D.detach()
affline_emb_B_D = self.affline_norm(affline_emb_B_D)
if self.use_cross_attn_mask:
if crossattn_mask is not None and not torch.is_floating_point(crossattn_mask):
crossattn_mask = (crossattn_mask - 1).to(x.dtype) * torch.finfo(x.dtype).max
crossattn_mask = crossattn_mask[:, None, None, :] # .to(dtype=torch.bool) # [B, 1, 1, length]
else:
crossattn_mask = None
if self.blocks["block0"].x_format == "THWBD":
x = rearrange(x_B_T_H_W_D, "B T H W D -> T H W B D")
if extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D is not None:
extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D = rearrange(
extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D, "B T H W D -> T H W B D"
)
crossattn_emb = rearrange(crossattn_emb, "B M D -> M B D")
if crossattn_mask:
crossattn_mask = rearrange(crossattn_mask, "B M -> M B")
elif self.blocks["block0"].x_format == "BTHWD":
x = x_B_T_H_W_D
else:
raise ValueError(f"Unknown x_format {self.blocks[0].x_format}")
output = {
"x": x,
"affline_emb_B_D": affline_emb_B_D,
"crossattn_emb": crossattn_emb,
"crossattn_mask": crossattn_mask,
"rope_emb_L_1_1_D": rope_emb_L_1_1_D,
"adaln_lora_B_3D": adaln_lora_B_3D,
"original_shape": original_shape,
"extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D": extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D,
}
return output
def forward(
self,
x: torch.Tensor,
timesteps: torch.Tensor,
context: torch.Tensor,
attention_mask: Optional[torch.Tensor] = None,
# crossattn_emb: torch.Tensor,
# crossattn_mask: Optional[torch.Tensor] = None,
fps: Optional[torch.Tensor] = None,
image_size: Optional[torch.Tensor] = None,
padding_mask: Optional[torch.Tensor] = None,
scalar_feature: Optional[torch.Tensor] = None,
data_type: Optional[DataType] = DataType.VIDEO,
latent_condition: Optional[torch.Tensor] = None,
latent_condition_sigma: Optional[torch.Tensor] = None,
condition_video_augment_sigma: Optional[torch.Tensor] = None,
**kwargs,
):
"""
Args:
x: (B, C, T, H, W) tensor of spatial-temp inputs
timesteps: (B, ) tensor of timesteps
crossattn_emb: (B, N, D) tensor of cross-attention embeddings
crossattn_mask: (B, N) tensor of cross-attention masks
condition_video_augment_sigma: (B,) used in lvg(long video generation), we add noise with this sigma to
augment condition input, the lvg model will condition on the condition_video_augment_sigma value;
we need forward_before_blocks pass to the forward_before_blocks function.
"""
crossattn_emb = context
crossattn_mask = attention_mask
inputs = self.forward_before_blocks(
x=x,
timesteps=timesteps,
crossattn_emb=crossattn_emb,
crossattn_mask=crossattn_mask,
fps=fps,
image_size=image_size,
padding_mask=padding_mask,
scalar_feature=scalar_feature,
data_type=data_type,
latent_condition=latent_condition,
latent_condition_sigma=latent_condition_sigma,
condition_video_augment_sigma=condition_video_augment_sigma,
**kwargs,
)
x, affline_emb_B_D, crossattn_emb, crossattn_mask, rope_emb_L_1_1_D, adaln_lora_B_3D, original_shape = (
inputs["x"],
inputs["affline_emb_B_D"],
inputs["crossattn_emb"],
inputs["crossattn_mask"],
inputs["rope_emb_L_1_1_D"],
inputs["adaln_lora_B_3D"],
inputs["original_shape"],
)
extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D = inputs["extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D"].to(x.dtype)
del inputs
if extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D is not None:
assert (
x.shape == extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D.shape
), f"{x.shape} != {extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D.shape} {original_shape}"
for _, block in self.blocks.items():
assert (
self.blocks["block0"].x_format == block.x_format
), f"First block has x_format {self.blocks[0].x_format}, got {block.x_format}"
if extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D is not None:
x += extra_pos_emb_B_T_H_W_D_or_T_H_W_B_D
x = block(
x,
affline_emb_B_D,
crossattn_emb,
crossattn_mask,
rope_emb_L_1_1_D=rope_emb_L_1_1_D,
adaln_lora_B_3D=adaln_lora_B_3D,
)
x_B_T_H_W_D = rearrange(x, "T H W B D -> B T H W D")
x_B_D_T_H_W = self.decoder_head(
x_B_T_H_W_D=x_B_T_H_W_D,
emb_B_D=affline_emb_B_D,
crossattn_emb=None,
origin_shape=original_shape,
crossattn_mask=None,
adaln_lora_B_3D=adaln_lora_B_3D,
)
return x_B_D_T_H_W

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@ -1,208 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import List, Optional
import torch
from einops import rearrange, repeat
from torch import nn
import math
def normalize(x: torch.Tensor, dim: Optional[List[int]] = None, eps: float = 0) -> torch.Tensor:
"""
Normalizes the input tensor along specified dimensions such that the average square norm of elements is adjusted.
Args:
x (torch.Tensor): The input tensor to normalize.
dim (list, optional): The dimensions over which to normalize. If None, normalizes over all dimensions except the first.
eps (float, optional): A small constant to ensure numerical stability during division.
Returns:
torch.Tensor: The normalized tensor.
"""
if dim is None:
dim = list(range(1, x.ndim))
norm = torch.linalg.vector_norm(x, dim=dim, keepdim=True, dtype=torch.float32)
norm = torch.add(eps, norm, alpha=math.sqrt(norm.numel() / x.numel()))
return x / norm.to(x.dtype)
class VideoPositionEmb(nn.Module):
def forward(self, x_B_T_H_W_C: torch.Tensor, fps=Optional[torch.Tensor], device=None, dtype=None) -> torch.Tensor:
"""
It delegates the embedding generation to generate_embeddings function.
"""
B_T_H_W_C = x_B_T_H_W_C.shape
embeddings = self.generate_embeddings(B_T_H_W_C, fps=fps, device=device, dtype=dtype)
return embeddings
def generate_embeddings(self, B_T_H_W_C: torch.Size, fps=Optional[torch.Tensor], device=None):
raise NotImplementedError
class VideoRopePosition3DEmb(VideoPositionEmb):
def __init__(
self,
*, # enforce keyword arguments
head_dim: int,
len_h: int,
len_w: int,
len_t: int,
base_fps: int = 24,
h_extrapolation_ratio: float = 1.0,
w_extrapolation_ratio: float = 1.0,
t_extrapolation_ratio: float = 1.0,
device=None,
**kwargs, # used for compatibility with other positional embeddings; unused in this class
):
del kwargs
super().__init__()
self.register_buffer("seq", torch.arange(max(len_h, len_w, len_t), dtype=torch.float, device=device))
self.base_fps = base_fps
self.max_h = len_h
self.max_w = len_w
dim = head_dim
dim_h = dim // 6 * 2
dim_w = dim_h
dim_t = dim - 2 * dim_h
assert dim == dim_h + dim_w + dim_t, f"bad dim: {dim} != {dim_h} + {dim_w} + {dim_t}"
self.register_buffer(
"dim_spatial_range",
torch.arange(0, dim_h, 2, device=device)[: (dim_h // 2)].float() / dim_h,
persistent=False,
)
self.register_buffer(
"dim_temporal_range",
torch.arange(0, dim_t, 2, device=device)[: (dim_t // 2)].float() / dim_t,
persistent=False,
)
self.h_ntk_factor = h_extrapolation_ratio ** (dim_h / (dim_h - 2))
self.w_ntk_factor = w_extrapolation_ratio ** (dim_w / (dim_w - 2))
self.t_ntk_factor = t_extrapolation_ratio ** (dim_t / (dim_t - 2))
def generate_embeddings(
self,
B_T_H_W_C: torch.Size,
fps: Optional[torch.Tensor] = None,
h_ntk_factor: Optional[float] = None,
w_ntk_factor: Optional[float] = None,
t_ntk_factor: Optional[float] = None,
device=None,
dtype=None,
):
"""
Generate embeddings for the given input size.
Args:
B_T_H_W_C (torch.Size): Input tensor size (Batch, Time, Height, Width, Channels).
fps (Optional[torch.Tensor], optional): Frames per second. Defaults to None.
h_ntk_factor (Optional[float], optional): Height NTK factor. If None, uses self.h_ntk_factor.
w_ntk_factor (Optional[float], optional): Width NTK factor. If None, uses self.w_ntk_factor.
t_ntk_factor (Optional[float], optional): Time NTK factor. If None, uses self.t_ntk_factor.
Returns:
Not specified in the original code snippet.
"""
h_ntk_factor = h_ntk_factor if h_ntk_factor is not None else self.h_ntk_factor
w_ntk_factor = w_ntk_factor if w_ntk_factor is not None else self.w_ntk_factor
t_ntk_factor = t_ntk_factor if t_ntk_factor is not None else self.t_ntk_factor
h_theta = 10000.0 * h_ntk_factor
w_theta = 10000.0 * w_ntk_factor
t_theta = 10000.0 * t_ntk_factor
h_spatial_freqs = 1.0 / (h_theta**self.dim_spatial_range.to(device=device))
w_spatial_freqs = 1.0 / (w_theta**self.dim_spatial_range.to(device=device))
temporal_freqs = 1.0 / (t_theta**self.dim_temporal_range.to(device=device))
B, T, H, W, _ = B_T_H_W_C
uniform_fps = (fps is None) or isinstance(fps, (int, float)) or (fps.min() == fps.max())
assert (
uniform_fps or B == 1 or T == 1
), "For video batch, batch size should be 1 for non-uniform fps. For image batch, T should be 1"
assert (
H <= self.max_h and W <= self.max_w
), f"Input dimensions (H={H}, W={W}) exceed the maximum dimensions (max_h={self.max_h}, max_w={self.max_w})"
half_emb_h = torch.outer(self.seq[:H].to(device=device), h_spatial_freqs)
half_emb_w = torch.outer(self.seq[:W].to(device=device), w_spatial_freqs)
# apply sequence scaling in temporal dimension
if fps is None: # image case
half_emb_t = torch.outer(self.seq[:T].to(device=device), temporal_freqs)
else:
half_emb_t = torch.outer(self.seq[:T].to(device=device) / fps * self.base_fps, temporal_freqs)
half_emb_h = torch.stack([torch.cos(half_emb_h), -torch.sin(half_emb_h), torch.sin(half_emb_h), torch.cos(half_emb_h)], dim=-1)
half_emb_w = torch.stack([torch.cos(half_emb_w), -torch.sin(half_emb_w), torch.sin(half_emb_w), torch.cos(half_emb_w)], dim=-1)
half_emb_t = torch.stack([torch.cos(half_emb_t), -torch.sin(half_emb_t), torch.sin(half_emb_t), torch.cos(half_emb_t)], dim=-1)
em_T_H_W_D = torch.cat(
[
repeat(half_emb_t, "t d x -> t h w d x", h=H, w=W),
repeat(half_emb_h, "h d x -> t h w d x", t=T, w=W),
repeat(half_emb_w, "w d x -> t h w d x", t=T, h=H),
]
, dim=-2,
)
return rearrange(em_T_H_W_D, "t h w d (i j) -> (t h w) d i j", i=2, j=2).float()
class LearnablePosEmbAxis(VideoPositionEmb):
def __init__(
self,
*, # enforce keyword arguments
interpolation: str,
model_channels: int,
len_h: int,
len_w: int,
len_t: int,
device=None,
dtype=None,
**kwargs,
):
"""
Args:
interpolation (str): we curretly only support "crop", ideally when we need extrapolation capacity, we should adjust frequency or other more advanced methods. they are not implemented yet.
"""
del kwargs # unused
super().__init__()
self.interpolation = interpolation
assert self.interpolation in ["crop"], f"Unknown interpolation method {self.interpolation}"
self.pos_emb_h = nn.Parameter(torch.empty(len_h, model_channels, device=device, dtype=dtype))
self.pos_emb_w = nn.Parameter(torch.empty(len_w, model_channels, device=device, dtype=dtype))
self.pos_emb_t = nn.Parameter(torch.empty(len_t, model_channels, device=device, dtype=dtype))
def generate_embeddings(self, B_T_H_W_C: torch.Size, fps=Optional[torch.Tensor], device=None, dtype=None) -> torch.Tensor:
B, T, H, W, _ = B_T_H_W_C
if self.interpolation == "crop":
emb_h_H = self.pos_emb_h[:H].to(device=device, dtype=dtype)
emb_w_W = self.pos_emb_w[:W].to(device=device, dtype=dtype)
emb_t_T = self.pos_emb_t[:T].to(device=device, dtype=dtype)
emb = (
repeat(emb_t_T, "t d-> b t h w d", b=B, h=H, w=W)
+ repeat(emb_h_H, "h d-> b t h w d", b=B, t=T, w=W)
+ repeat(emb_w_W, "w d-> b t h w d", b=B, t=T, h=H)
)
assert list(emb.shape)[:4] == [B, T, H, W], f"bad shape: {list(emb.shape)[:4]} != {B, T, H, W}"
else:
raise ValueError(f"Unknown interpolation method {self.interpolation}")
return normalize(emb, dim=-1, eps=1e-6)

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@ -1,131 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""The causal continuous video tokenizer with VAE or AE formulation for 3D data.."""
import logging
import torch
from torch import nn
from enum import Enum
import math
from .cosmos_tokenizer.layers3d import (
EncoderFactorized,
DecoderFactorized,
CausalConv3d,
)
class IdentityDistribution(torch.nn.Module):
def __init__(self):
super().__init__()
def forward(self, parameters):
return parameters, (torch.tensor([0.0]), torch.tensor([0.0]))
class GaussianDistribution(torch.nn.Module):
def __init__(self, min_logvar: float = -30.0, max_logvar: float = 20.0):
super().__init__()
self.min_logvar = min_logvar
self.max_logvar = max_logvar
def sample(self, mean, logvar):
std = torch.exp(0.5 * logvar)
return mean + std * torch.randn_like(mean)
def forward(self, parameters):
mean, logvar = torch.chunk(parameters, 2, dim=1)
logvar = torch.clamp(logvar, self.min_logvar, self.max_logvar)
return self.sample(mean, logvar), (mean, logvar)
class ContinuousFormulation(Enum):
VAE = GaussianDistribution
AE = IdentityDistribution
class CausalContinuousVideoTokenizer(nn.Module):
def __init__(
self, z_channels: int, z_factor: int, latent_channels: int, **kwargs
) -> None:
super().__init__()
self.name = kwargs.get("name", "CausalContinuousVideoTokenizer")
self.latent_channels = latent_channels
self.sigma_data = 0.5
# encoder_name = kwargs.get("encoder", Encoder3DType.BASE.name)
self.encoder = EncoderFactorized(
z_channels=z_factor * z_channels, **kwargs
)
if kwargs.get("temporal_compression", 4) == 4:
kwargs["channels_mult"] = [2, 4]
# decoder_name = kwargs.get("decoder", Decoder3DType.BASE.name)
self.decoder = DecoderFactorized(
z_channels=z_channels, **kwargs
)
self.quant_conv = CausalConv3d(
z_factor * z_channels,
z_factor * latent_channels,
kernel_size=1,
padding=0,
)
self.post_quant_conv = CausalConv3d(
latent_channels, z_channels, kernel_size=1, padding=0
)
# formulation_name = kwargs.get("formulation", ContinuousFormulation.AE.name)
self.distribution = IdentityDistribution() # ContinuousFormulation[formulation_name].value()
num_parameters = sum(param.numel() for param in self.parameters())
logging.debug(f"model={self.name}, num_parameters={num_parameters:,}")
logging.debug(
f"z_channels={z_channels}, latent_channels={self.latent_channels}."
)
latent_temporal_chunk = 16
self.latent_mean = nn.Parameter(torch.zeros([self.latent_channels * latent_temporal_chunk], dtype=torch.float32))
self.latent_std = nn.Parameter(torch.ones([self.latent_channels * latent_temporal_chunk], dtype=torch.float32))
def encode(self, x):
h = self.encoder(x)
moments = self.quant_conv(h)
z, posteriors = self.distribution(moments)
latent_ch = z.shape[1]
latent_t = z.shape[2]
in_dtype = z.dtype
mean = self.latent_mean.view(latent_ch, -1)
std = self.latent_std.view(latent_ch, -1)
mean = mean.repeat(1, math.ceil(latent_t / mean.shape[-1]))[:, : latent_t].reshape([1, latent_ch, -1, 1, 1]).to(dtype=in_dtype, device=z.device)
std = std.repeat(1, math.ceil(latent_t / std.shape[-1]))[:, : latent_t].reshape([1, latent_ch, -1, 1, 1]).to(dtype=in_dtype, device=z.device)
return ((z - mean) / std) * self.sigma_data
def decode(self, z):
in_dtype = z.dtype
latent_ch = z.shape[1]
latent_t = z.shape[2]
mean = self.latent_mean.view(latent_ch, -1)
std = self.latent_std.view(latent_ch, -1)
mean = mean.repeat(1, math.ceil(latent_t / mean.shape[-1]))[:, : latent_t].reshape([1, latent_ch, -1, 1, 1]).to(dtype=in_dtype, device=z.device)
std = std.repeat(1, math.ceil(latent_t / std.shape[-1]))[:, : latent_t].reshape([1, latent_ch, -1, 1, 1]).to(dtype=in_dtype, device=z.device)
z = z / self.sigma_data
z = z * std + mean
z = self.post_quant_conv(z)
return self.decoder(z)

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@ -1,203 +0,0 @@
#Original code can be found on: https://github.com/XLabs-AI/x-flux/blob/main/src/flux/controlnet.py
#modified to support different types of flux controlnets
import torch
import math
from torch import Tensor, nn
from einops import rearrange, repeat
from .layers import (timestep_embedding)
from .model import Flux
import comfy.ldm.common_dit
class MistolineCondDownsamplBlock(nn.Module):
def __init__(self, dtype=None, device=None, operations=None):
super().__init__()
self.encoder = nn.Sequential(
operations.Conv2d(3, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, stride=2, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, stride=2, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, stride=2, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device)
)
def forward(self, x):
return self.encoder(x)
class MistolineControlnetBlock(nn.Module):
def __init__(self, hidden_size, dtype=None, device=None, operations=None):
super().__init__()
self.linear = operations.Linear(hidden_size, hidden_size, dtype=dtype, device=device)
self.act = nn.SiLU()
def forward(self, x):
return self.act(self.linear(x))
class ControlNetFlux(Flux):
def __init__(self, latent_input=False, num_union_modes=0, mistoline=False, control_latent_channels=None, image_model=None, dtype=None, device=None, operations=None, **kwargs):
super().__init__(final_layer=False, dtype=dtype, device=device, operations=operations, **kwargs)
self.main_model_double = 19
self.main_model_single = 38
self.mistoline = mistoline
# add ControlNet blocks
if self.mistoline:
control_block = lambda : MistolineControlnetBlock(self.hidden_size, dtype=dtype, device=device, operations=operations)
else:
control_block = lambda : operations.Linear(self.hidden_size, self.hidden_size, dtype=dtype, device=device)
self.controlnet_blocks = nn.ModuleList([])
for _ in range(self.params.depth):
self.controlnet_blocks.append(control_block())
self.controlnet_single_blocks = nn.ModuleList([])
for _ in range(self.params.depth_single_blocks):
self.controlnet_single_blocks.append(control_block())
self.num_union_modes = num_union_modes
self.controlnet_mode_embedder = None
if self.num_union_modes > 0:
self.controlnet_mode_embedder = operations.Embedding(self.num_union_modes, self.hidden_size, dtype=dtype, device=device)
self.gradient_checkpointing = False
self.latent_input = latent_input
if control_latent_channels is None:
control_latent_channels = self.in_channels
else:
control_latent_channels *= 2 * 2 #patch size
self.pos_embed_input = operations.Linear(control_latent_channels, self.hidden_size, bias=True, dtype=dtype, device=device)
if not self.latent_input:
if self.mistoline:
self.input_cond_block = MistolineCondDownsamplBlock(dtype=dtype, device=device, operations=operations)
else:
self.input_hint_block = nn.Sequential(
operations.Conv2d(3, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, stride=2, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, stride=2, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, stride=2, dtype=dtype, device=device),
nn.SiLU(),
operations.Conv2d(16, 16, 3, padding=1, dtype=dtype, device=device)
)
def forward_orig(
self,
img: Tensor,
img_ids: Tensor,
controlnet_cond: Tensor,
txt: Tensor,
txt_ids: Tensor,
timesteps: Tensor,
y: Tensor,
guidance: Tensor = None,
control_type: Tensor = None,
) -> Tensor:
if img.ndim != 3 or txt.ndim != 3:
raise ValueError("Input img and txt tensors must have 3 dimensions.")
# running on sequences img
img = self.img_in(img)
controlnet_cond = self.pos_embed_input(controlnet_cond)
img = img + controlnet_cond
vec = self.time_in(timestep_embedding(timesteps, 256))
if self.params.guidance_embed:
vec = vec + self.guidance_in(timestep_embedding(guidance, 256))
vec = vec + self.vector_in(y)
txt = self.txt_in(txt)
if self.controlnet_mode_embedder is not None and len(control_type) > 0:
control_cond = self.controlnet_mode_embedder(torch.tensor(control_type, device=img.device), out_dtype=img.dtype).unsqueeze(0).repeat((txt.shape[0], 1, 1))
txt = torch.cat([control_cond, txt], dim=1)
txt_ids = torch.cat([txt_ids[:,:1], txt_ids], dim=1)
ids = torch.cat((txt_ids, img_ids), dim=1)
pe = self.pe_embedder(ids)
controlnet_double = ()
for i in range(len(self.double_blocks)):
img, txt = self.double_blocks[i](img=img, txt=txt, vec=vec, pe=pe)
controlnet_double = controlnet_double + (self.controlnet_blocks[i](img),)
img = torch.cat((txt, img), 1)
controlnet_single = ()
for i in range(len(self.single_blocks)):
img = self.single_blocks[i](img, vec=vec, pe=pe)
controlnet_single = controlnet_single + (self.controlnet_single_blocks[i](img[:, txt.shape[1] :, ...]),)
repeat = math.ceil(self.main_model_double / len(controlnet_double))
if self.latent_input:
out_input = ()
for x in controlnet_double:
out_input += (x,) * repeat
else:
out_input = (controlnet_double * repeat)
out = {"input": out_input[:self.main_model_double]}
if len(controlnet_single) > 0:
repeat = math.ceil(self.main_model_single / len(controlnet_single))
out_output = ()
if self.latent_input:
for x in controlnet_single:
out_output += (x,) * repeat
else:
out_output = (controlnet_single * repeat)
out["output"] = out_output[:self.main_model_single]
return out
def forward(self, x, timesteps, context, y, guidance=None, hint=None, **kwargs):
patch_size = 2
if self.latent_input:
hint = comfy.ldm.common_dit.pad_to_patch_size(hint, (patch_size, patch_size))
elif self.mistoline:
hint = hint * 2.0 - 1.0
hint = self.input_cond_block(hint)
else:
hint = hint * 2.0 - 1.0
hint = self.input_hint_block(hint)
hint = rearrange(hint, "b c (h ph) (w pw) -> b (h w) (c ph pw)", ph=patch_size, pw=patch_size)
bs, c, h, w = x.shape
x = comfy.ldm.common_dit.pad_to_patch_size(x, (patch_size, patch_size))
img = rearrange(x, "b c (h ph) (w pw) -> b (h w) (c ph pw)", ph=patch_size, pw=patch_size)
h_len = ((h + (patch_size // 2)) // patch_size)
w_len = ((w + (patch_size // 2)) // patch_size)
img_ids = torch.zeros((h_len, w_len, 3), device=x.device, dtype=x.dtype)
img_ids[..., 1] = img_ids[..., 1] + torch.linspace(0, h_len - 1, steps=h_len, device=x.device, dtype=x.dtype)[:, None]
img_ids[..., 2] = img_ids[..., 2] + torch.linspace(0, w_len - 1, steps=w_len, device=x.device, dtype=x.dtype)[None, :]
img_ids = repeat(img_ids, "h w c -> b (h w) c", b=bs)
txt_ids = torch.zeros((bs, context.shape[1], 3), device=x.device, dtype=x.dtype)
return self.forward_orig(img, img_ids, hint, context, txt_ids, timesteps, y, guidance, control_type=kwargs.get("control_type", []))

View File

@ -6,7 +6,6 @@ from torch import Tensor, nn
from .math import attention, rope
import comfy.ops
import comfy.ldm.common_dit
class EmbedND(nn.Module):
@ -64,7 +63,10 @@ class RMSNorm(torch.nn.Module):
self.scale = nn.Parameter(torch.empty((dim), dtype=dtype, device=device))
def forward(self, x: Tensor):
return comfy.ldm.common_dit.rms_norm(x, self.scale, 1e-6)
x_dtype = x.dtype
x = x.float()
rrms = torch.rsqrt(torch.mean(x**2, dim=-1, keepdim=True) + 1e-6)
return (x * rrms).to(dtype=x_dtype) * comfy.ops.cast_to(self.scale, dtype=x_dtype, device=x.device)
class QKNorm(torch.nn.Module):
@ -105,9 +107,7 @@ class Modulation(nn.Module):
self.lin = operations.Linear(dim, self.multiplier * dim, bias=True, dtype=dtype, device=device)
def forward(self, vec: Tensor) -> tuple:
if vec.ndim == 2:
vec = vec[:, None, :]
out = self.lin(nn.functional.silu(vec)).chunk(self.multiplier, dim=-1)
out = self.lin(nn.functional.silu(vec))[:, None, :].chunk(self.multiplier, dim=-1)
return (
ModulationOut(*out[:3]),
@ -115,22 +115,8 @@ class Modulation(nn.Module):
)
def apply_mod(tensor, m_mult, m_add=None, modulation_dims=None):
if modulation_dims is None:
if m_add is not None:
return tensor * m_mult + m_add
else:
return tensor * m_mult
else:
for d in modulation_dims:
tensor[:, d[0]:d[1]] *= m_mult[:, d[2]]
if m_add is not None:
tensor[:, d[0]:d[1]] += m_add[:, d[2]]
return tensor
class DoubleStreamBlock(nn.Module):
def __init__(self, hidden_size: int, num_heads: int, mlp_ratio: float, qkv_bias: bool = False, flipped_img_txt=False, dtype=None, device=None, operations=None):
def __init__(self, hidden_size: int, num_heads: int, mlp_ratio: float, qkv_bias: bool = False, dtype=None, device=None, operations=None):
super().__init__()
mlp_hidden_dim = int(hidden_size * mlp_ratio)
@ -157,53 +143,42 @@ class DoubleStreamBlock(nn.Module):
nn.GELU(approximate="tanh"),
operations.Linear(mlp_hidden_dim, hidden_size, bias=True, dtype=dtype, device=device),
)
self.flipped_img_txt = flipped_img_txt
def forward(self, img: Tensor, txt: Tensor, vec: Tensor, pe: Tensor, attn_mask=None, modulation_dims_img=None, modulation_dims_txt=None):
def forward(self, img: Tensor, txt: Tensor, vec: Tensor, pe: Tensor):
img_mod1, img_mod2 = self.img_mod(vec)
txt_mod1, txt_mod2 = self.txt_mod(vec)
# prepare image for attention
img_modulated = self.img_norm1(img)
img_modulated = apply_mod(img_modulated, (1 + img_mod1.scale), img_mod1.shift, modulation_dims_img)
img_modulated = (1 + img_mod1.scale) * img_modulated + img_mod1.shift
img_qkv = self.img_attn.qkv(img_modulated)
img_q, img_k, img_v = img_qkv.view(img_qkv.shape[0], img_qkv.shape[1], 3, self.num_heads, -1).permute(2, 0, 3, 1, 4)
img_q, img_k = self.img_attn.norm(img_q, img_k, img_v)
# prepare txt for attention
txt_modulated = self.txt_norm1(txt)
txt_modulated = apply_mod(txt_modulated, (1 + txt_mod1.scale), txt_mod1.shift, modulation_dims_txt)
txt_modulated = (1 + txt_mod1.scale) * txt_modulated + txt_mod1.shift
txt_qkv = self.txt_attn.qkv(txt_modulated)
txt_q, txt_k, txt_v = txt_qkv.view(txt_qkv.shape[0], txt_qkv.shape[1], 3, self.num_heads, -1).permute(2, 0, 3, 1, 4)
txt_q, txt_k = self.txt_attn.norm(txt_q, txt_k, txt_v)
if self.flipped_img_txt:
# run actual attention
attn = attention(torch.cat((img_q, txt_q), dim=2),
torch.cat((img_k, txt_k), dim=2),
torch.cat((img_v, txt_v), dim=2),
pe=pe, mask=attn_mask)
img_attn, txt_attn = attn[:, : img.shape[1]], attn[:, img.shape[1]:]
else:
# run actual attention
attn = attention(torch.cat((txt_q, img_q), dim=2),
torch.cat((txt_k, img_k), dim=2),
torch.cat((txt_v, img_v), dim=2),
pe=pe, mask=attn_mask)
torch.cat((txt_v, img_v), dim=2), pe=pe)
txt_attn, img_attn = attn[:, : txt.shape[1]], attn[:, txt.shape[1] :]
# calculate the img bloks
img = img + apply_mod(self.img_attn.proj(img_attn), img_mod1.gate, None, modulation_dims_img)
img = img + apply_mod(self.img_mlp(apply_mod(self.img_norm2(img), (1 + img_mod2.scale), img_mod2.shift, modulation_dims_img)), img_mod2.gate, None, modulation_dims_img)
img += img_mod1.gate * self.img_attn.proj(img_attn)
img += img_mod2.gate * self.img_mlp((1 + img_mod2.scale) * self.img_norm2(img) + img_mod2.shift)
# calculate the txt bloks
txt += apply_mod(self.txt_attn.proj(txt_attn), txt_mod1.gate, None, modulation_dims_txt)
txt += apply_mod(self.txt_mlp(apply_mod(self.txt_norm2(txt), (1 + txt_mod2.scale), txt_mod2.shift, modulation_dims_txt)), txt_mod2.gate, None, modulation_dims_txt)
txt += txt_mod1.gate * self.txt_attn.proj(txt_attn)
txt += txt_mod2.gate * self.txt_mlp((1 + txt_mod2.scale) * self.txt_norm2(txt) + txt_mod2.shift)
if txt.dtype == torch.float16:
txt = torch.nan_to_num(txt, nan=0.0, posinf=65504, neginf=-65504)
txt = txt.clip(-65504, 65504)
return img, txt
@ -244,20 +219,21 @@ class SingleStreamBlock(nn.Module):
self.mlp_act = nn.GELU(approximate="tanh")
self.modulation = Modulation(hidden_size, double=False, dtype=dtype, device=device, operations=operations)
def forward(self, x: Tensor, vec: Tensor, pe: Tensor, attn_mask=None, modulation_dims=None) -> Tensor:
def forward(self, x: Tensor, vec: Tensor, pe: Tensor) -> Tensor:
mod, _ = self.modulation(vec)
qkv, mlp = torch.split(self.linear1(apply_mod(self.pre_norm(x), (1 + mod.scale), mod.shift, modulation_dims)), [3 * self.hidden_size, self.mlp_hidden_dim], dim=-1)
x_mod = (1 + mod.scale) * self.pre_norm(x) + mod.shift
qkv, mlp = torch.split(self.linear1(x_mod), [3 * self.hidden_size, self.mlp_hidden_dim], dim=-1)
q, k, v = qkv.view(qkv.shape[0], qkv.shape[1], 3, self.num_heads, -1).permute(2, 0, 3, 1, 4)
q, k = self.norm(q, k, v)
# compute attention
attn = attention(q, k, v, pe=pe, mask=attn_mask)
attn = attention(q, k, v, pe=pe)
# compute activation in mlp stream, cat again and run second linear layer
output = self.linear2(torch.cat((attn, self.mlp_act(mlp)), 2))
x += apply_mod(output, mod.gate, None, modulation_dims)
x += mod.gate * output
if x.dtype == torch.float16:
x = torch.nan_to_num(x, nan=0.0, posinf=65504, neginf=-65504)
x = x.clip(-65504, 65504)
return x
@ -268,11 +244,8 @@ class LastLayer(nn.Module):
self.linear = operations.Linear(hidden_size, patch_size * patch_size * out_channels, bias=True, dtype=dtype, device=device)
self.adaLN_modulation = nn.Sequential(nn.SiLU(), operations.Linear(hidden_size, 2 * hidden_size, bias=True, dtype=dtype, device=device))
def forward(self, x: Tensor, vec: Tensor, modulation_dims=None) -> Tensor:
if vec.ndim == 2:
vec = vec[:, None, :]
shift, scale = self.adaLN_modulation(vec).chunk(2, dim=-1)
x = apply_mod(self.norm_final(x), (1 + scale), shift, modulation_dims)
def forward(self, x: Tensor, vec: Tensor) -> Tensor:
shift, scale = self.adaLN_modulation(vec).chunk(2, dim=1)
x = (1 + scale[:, None, :]) * self.norm_final(x) + shift[:, None, :]
x = self.linear(x)
return x

View File

@ -1,29 +1,20 @@
import torch
from einops import rearrange
from torch import Tensor
from comfy.ldm.modules.attention import optimized_attention
import comfy.model_management
def attention(q: Tensor, k: Tensor, v: Tensor, pe: Tensor, mask=None) -> Tensor:
q_shape = q.shape
k_shape = k.shape
if pe is not None:
q = q.to(dtype=pe.dtype).reshape(*q.shape[:-1], -1, 1, 2)
k = k.to(dtype=pe.dtype).reshape(*k.shape[:-1], -1, 1, 2)
q = (pe[..., 0] * q[..., 0] + pe[..., 1] * q[..., 1]).reshape(*q_shape).type_as(v)
k = (pe[..., 0] * k[..., 0] + pe[..., 1] * k[..., 1]).reshape(*k_shape).type_as(v)
def attention(q: Tensor, k: Tensor, v: Tensor, pe: Tensor) -> Tensor:
q, k = apply_rope(q, k, pe)
heads = q.shape[1]
x = optimized_attention(q, k, v, heads, skip_reshape=True, mask=mask)
x = optimized_attention(q, k, v, heads, skip_reshape=True)
return x
def rope(pos: Tensor, dim: int, theta: int) -> Tensor:
assert dim % 2 == 0
if comfy.model_management.is_device_mps(pos.device) or comfy.model_management.is_intel_xpu() or comfy.model_management.is_directml_enabled():
if comfy.model_management.is_device_mps(pos.device) or comfy.model_management.is_intel_xpu():
device = torch.device("cpu")
else:
device = pos.device
@ -37,9 +28,8 @@ def rope(pos: Tensor, dim: int, theta: int) -> Tensor:
def apply_rope(xq: Tensor, xk: Tensor, freqs_cis: Tensor):
xq_ = xq.to(dtype=freqs_cis.dtype).reshape(*xq.shape[:-1], -1, 1, 2)
xk_ = xk.to(dtype=freqs_cis.dtype).reshape(*xk.shape[:-1], -1, 1, 2)
xq_ = xq.float().reshape(*xq.shape[:-1], -1, 1, 2)
xk_ = xk.float().reshape(*xk.shape[:-1], -1, 1, 2)
xq_out = freqs_cis[..., 0] * xq_[..., 0] + freqs_cis[..., 1] * xq_[..., 1]
xk_out = freqs_cis[..., 0] * xk_[..., 0] + freqs_cis[..., 1] * xk_[..., 1]
return xq_out.reshape(*xq.shape).type_as(xq), xk_out.reshape(*xk.shape).type_as(xk)

View File

@ -4,8 +4,6 @@ from dataclasses import dataclass
import torch
from torch import Tensor, nn
from einops import rearrange, repeat
import comfy.ldm.common_dit
from .layers import (
DoubleStreamBlock,
@ -16,10 +14,12 @@ from .layers import (
timestep_embedding,
)
from einops import rearrange, repeat
import comfy.ldm.common_dit
@dataclass
class FluxParams:
in_channels: int
out_channels: int
vec_in_dim: int
context_in_dim: int
hidden_size: int
@ -29,7 +29,6 @@ class FluxParams:
depth_single_blocks: int
axes_dim: list
theta: int
patch_size: int
qkv_bias: bool
guidance_embed: bool
@ -39,14 +38,13 @@ class Flux(nn.Module):
Transformer model for flow matching on sequences.
"""
def __init__(self, image_model=None, final_layer=True, dtype=None, device=None, operations=None, **kwargs):
def __init__(self, image_model=None, dtype=None, device=None, operations=None, **kwargs):
super().__init__()
self.dtype = dtype
params = FluxParams(**kwargs)
self.params = params
self.patch_size = params.patch_size
self.in_channels = params.in_channels * params.patch_size * params.patch_size
self.out_channels = params.out_channels * params.patch_size * params.patch_size
self.in_channels = params.in_channels * 2 * 2
self.out_channels = self.in_channels
if params.hidden_size % params.num_heads != 0:
raise ValueError(
f"Hidden size {params.hidden_size} must be divisible by num_heads {params.num_heads}"
@ -85,7 +83,6 @@ class Flux(nn.Module):
]
)
if final_layer:
self.final_layer = LastLayer(self.hidden_size, 1, self.out_channels, dtype=dtype, device=device, operations=operations)
def forward_orig(
@ -97,11 +94,7 @@ class Flux(nn.Module):
timesteps: Tensor,
y: Tensor,
guidance: Tensor = None,
control = None,
transformer_options={},
attn_mask: Tensor = None,
) -> Tensor:
patches_replace = transformer_options.get("patches_replace", {})
if img.ndim != 3 or txt.ndim != 3:
raise ValueError("Input img and txt tensors must have 3 dimensions.")
@ -109,88 +102,30 @@ class Flux(nn.Module):
img = self.img_in(img)
vec = self.time_in(timestep_embedding(timesteps, 256).to(img.dtype))
if self.params.guidance_embed:
if guidance is not None:
if guidance is None:
raise ValueError("Didn't get guidance strength for guidance distilled model.")
vec = vec + self.guidance_in(timestep_embedding(guidance, 256).to(img.dtype))
vec = vec + self.vector_in(y[:,:self.params.vec_in_dim])
vec = vec + self.vector_in(y)
txt = self.txt_in(txt)
if img_ids is not None:
ids = torch.cat((txt_ids, img_ids), dim=1)
pe = self.pe_embedder(ids)
else:
pe = None
blocks_replace = patches_replace.get("dit", {})
for i, block in enumerate(self.double_blocks):
if ("double_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"], out["txt"] = block(img=args["img"],
txt=args["txt"],
vec=args["vec"],
pe=args["pe"],
attn_mask=args.get("attn_mask"))
return out
out = blocks_replace[("double_block", i)]({"img": img,
"txt": txt,
"vec": vec,
"pe": pe,
"attn_mask": attn_mask},
{"original_block": block_wrap})
txt = out["txt"]
img = out["img"]
else:
img, txt = block(img=img,
txt=txt,
vec=vec,
pe=pe,
attn_mask=attn_mask)
if control is not None: # Controlnet
control_i = control.get("input")
if i < len(control_i):
add = control_i[i]
if add is not None:
img += add
for block in self.double_blocks:
img, txt = block(img=img, txt=txt, vec=vec, pe=pe)
img = torch.cat((txt, img), 1)
for i, block in enumerate(self.single_blocks):
if ("single_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"] = block(args["img"],
vec=args["vec"],
pe=args["pe"],
attn_mask=args.get("attn_mask"))
return out
out = blocks_replace[("single_block", i)]({"img": img,
"vec": vec,
"pe": pe,
"attn_mask": attn_mask},
{"original_block": block_wrap})
img = out["img"]
else:
img = block(img, vec=vec, pe=pe, attn_mask=attn_mask)
if control is not None: # Controlnet
control_o = control.get("output")
if i < len(control_o):
add = control_o[i]
if add is not None:
img[:, txt.shape[1] :, ...] += add
for block in self.single_blocks:
img = block(img, vec=vec, pe=pe)
img = img[:, txt.shape[1] :, ...]
img = self.final_layer(img, vec) # (N, T, patch_size ** 2 * out_channels)
return img
def forward(self, x, timestep, context, y, guidance=None, control=None, transformer_options={}, **kwargs):
def forward(self, x, timestep, context, y, guidance, **kwargs):
bs, c, h, w = x.shape
patch_size = self.patch_size
patch_size = 2
x = comfy.ldm.common_dit.pad_to_patch_size(x, (patch_size, patch_size))
img = rearrange(x, "b c (h ph) (w pw) -> b (h w) (c ph pw)", ph=patch_size, pw=patch_size)
@ -198,10 +133,10 @@ class Flux(nn.Module):
h_len = ((h + (patch_size // 2)) // patch_size)
w_len = ((w + (patch_size // 2)) // patch_size)
img_ids = torch.zeros((h_len, w_len, 3), device=x.device, dtype=x.dtype)
img_ids[:, :, 1] = img_ids[:, :, 1] + torch.linspace(0, h_len - 1, steps=h_len, device=x.device, dtype=x.dtype).unsqueeze(1)
img_ids[:, :, 2] = img_ids[:, :, 2] + torch.linspace(0, w_len - 1, steps=w_len, device=x.device, dtype=x.dtype).unsqueeze(0)
img_ids[..., 1] = img_ids[..., 1] + torch.linspace(0, h_len - 1, steps=h_len, device=x.device, dtype=x.dtype)[:, None]
img_ids[..., 2] = img_ids[..., 2] + torch.linspace(0, w_len - 1, steps=w_len, device=x.device, dtype=x.dtype)[None, :]
img_ids = repeat(img_ids, "h w c -> b (h w) c", b=bs)
txt_ids = torch.zeros((bs, context.shape[1], 3), device=x.device, dtype=x.dtype)
out = self.forward_orig(img, img_ids, context, txt_ids, timestep, y, guidance, control, transformer_options, attn_mask=kwargs.get("attention_mask", None))
out = self.forward_orig(img, img_ids, context, txt_ids, timestep, y, guidance)
return rearrange(out, "b (h w) (c ph pw) -> b c (h ph) (w pw)", h=h_len, w=w_len, ph=2, pw=2)[:,:,:h,:w]

View File

@ -1,25 +0,0 @@
import torch
import comfy.ops
ops = comfy.ops.manual_cast
class ReduxImageEncoder(torch.nn.Module):
def __init__(
self,
redux_dim: int = 1152,
txt_in_features: int = 4096,
device=None,
dtype=None,
) -> None:
super().__init__()
self.redux_dim = redux_dim
self.device = device
self.dtype = dtype
self.redux_up = ops.Linear(redux_dim, txt_in_features * 3, dtype=dtype)
self.redux_down = ops.Linear(txt_in_features * 3, txt_in_features, dtype=dtype)
def forward(self, sigclip_embeds) -> torch.Tensor:
projected_x = self.redux_down(torch.nn.functional.silu(self.redux_up(sigclip_embeds)))
return projected_x

View File

@ -1,557 +0,0 @@
#original code from https://github.com/genmoai/models under apache 2.0 license
#adapted to ComfyUI
from typing import Dict, List, Optional, Tuple
import torch
import torch.nn as nn
import torch.nn.functional as F
from einops import rearrange
# from flash_attn import flash_attn_varlen_qkvpacked_func
from comfy.ldm.modules.attention import optimized_attention
from .layers import (
FeedForward,
PatchEmbed,
RMSNorm,
TimestepEmbedder,
)
from .rope_mixed import (
compute_mixed_rotation,
create_position_matrix,
)
from .temporal_rope import apply_rotary_emb_qk_real
from .utils import (
AttentionPool,
modulate,
)
import comfy.ldm.common_dit
import comfy.ops
def modulated_rmsnorm(x, scale, eps=1e-6):
# Normalize and modulate
x_normed = comfy.ldm.common_dit.rms_norm(x, eps=eps)
x_modulated = x_normed * (1 + scale.unsqueeze(1))
return x_modulated
def residual_tanh_gated_rmsnorm(x, x_res, gate, eps=1e-6):
# Apply tanh to gate
tanh_gate = torch.tanh(gate).unsqueeze(1)
# Normalize and apply gated scaling
x_normed = comfy.ldm.common_dit.rms_norm(x_res, eps=eps) * tanh_gate
# Apply residual connection
output = x + x_normed
return output
class AsymmetricAttention(nn.Module):
def __init__(
self,
dim_x: int,
dim_y: int,
num_heads: int = 8,
qkv_bias: bool = True,
qk_norm: bool = False,
attn_drop: float = 0.0,
update_y: bool = True,
out_bias: bool = True,
attend_to_padding: bool = False,
softmax_scale: Optional[float] = None,
device: Optional[torch.device] = None,
dtype=None,
operations=None,
):
super().__init__()
self.dim_x = dim_x
self.dim_y = dim_y
self.num_heads = num_heads
self.head_dim = dim_x // num_heads
self.attn_drop = attn_drop
self.update_y = update_y
self.attend_to_padding = attend_to_padding
self.softmax_scale = softmax_scale
if dim_x % num_heads != 0:
raise ValueError(
f"dim_x={dim_x} should be divisible by num_heads={num_heads}"
)
# Input layers.
self.qkv_bias = qkv_bias
self.qkv_x = operations.Linear(dim_x, 3 * dim_x, bias=qkv_bias, device=device, dtype=dtype)
# Project text features to match visual features (dim_y -> dim_x)
self.qkv_y = operations.Linear(dim_y, 3 * dim_x, bias=qkv_bias, device=device, dtype=dtype)
# Query and key normalization for stability.
assert qk_norm
self.q_norm_x = RMSNorm(self.head_dim, device=device, dtype=dtype)
self.k_norm_x = RMSNorm(self.head_dim, device=device, dtype=dtype)
self.q_norm_y = RMSNorm(self.head_dim, device=device, dtype=dtype)
self.k_norm_y = RMSNorm(self.head_dim, device=device, dtype=dtype)
# Output layers. y features go back down from dim_x -> dim_y.
self.proj_x = operations.Linear(dim_x, dim_x, bias=out_bias, device=device, dtype=dtype)
self.proj_y = (
operations.Linear(dim_x, dim_y, bias=out_bias, device=device, dtype=dtype)
if update_y
else nn.Identity()
)
def forward(
self,
x: torch.Tensor, # (B, N, dim_x)
y: torch.Tensor, # (B, L, dim_y)
scale_x: torch.Tensor, # (B, dim_x), modulation for pre-RMSNorm.
scale_y: torch.Tensor, # (B, dim_y), modulation for pre-RMSNorm.
crop_y,
**rope_rotation,
) -> Tuple[torch.Tensor, torch.Tensor]:
rope_cos = rope_rotation.get("rope_cos")
rope_sin = rope_rotation.get("rope_sin")
# Pre-norm for visual features
x = modulated_rmsnorm(x, scale_x) # (B, M, dim_x) where M = N / cp_group_size
# Process visual features
# qkv_x = self.qkv_x(x) # (B, M, 3 * dim_x)
# assert qkv_x.dtype == torch.bfloat16
# qkv_x = all_to_all_collect_tokens(
# qkv_x, self.num_heads
# ) # (3, B, N, local_h, head_dim)
# Process text features
y = modulated_rmsnorm(y, scale_y) # (B, L, dim_y)
q_y, k_y, v_y = self.qkv_y(y).view(y.shape[0], y.shape[1], 3, self.num_heads, -1).unbind(2) # (B, N, local_h, head_dim)
q_y = self.q_norm_y(q_y)
k_y = self.k_norm_y(k_y)
# Split qkv_x into q, k, v
q_x, k_x, v_x = self.qkv_x(x).view(x.shape[0], x.shape[1], 3, self.num_heads, -1).unbind(2) # (B, N, local_h, head_dim)
q_x = self.q_norm_x(q_x)
q_x = apply_rotary_emb_qk_real(q_x, rope_cos, rope_sin)
k_x = self.k_norm_x(k_x)
k_x = apply_rotary_emb_qk_real(k_x, rope_cos, rope_sin)
q = torch.cat([q_x, q_y[:, :crop_y]], dim=1).transpose(1, 2)
k = torch.cat([k_x, k_y[:, :crop_y]], dim=1).transpose(1, 2)
v = torch.cat([v_x, v_y[:, :crop_y]], dim=1).transpose(1, 2)
xy = optimized_attention(q,
k,
v, self.num_heads, skip_reshape=True)
x, y = torch.tensor_split(xy, (q_x.shape[1],), dim=1)
x = self.proj_x(x)
o = torch.zeros(y.shape[0], q_y.shape[1], y.shape[-1], device=y.device, dtype=y.dtype)
o[:, :y.shape[1]] = y
y = self.proj_y(o)
# print("ox", x)
# print("oy", y)
return x, y
class AsymmetricJointBlock(nn.Module):
def __init__(
self,
hidden_size_x: int,
hidden_size_y: int,
num_heads: int,
*,
mlp_ratio_x: float = 8.0, # Ratio of hidden size to d_model for MLP for visual tokens.
mlp_ratio_y: float = 4.0, # Ratio of hidden size to d_model for MLP for text tokens.
update_y: bool = True, # Whether to update text tokens in this block.
device: Optional[torch.device] = None,
dtype=None,
operations=None,
**block_kwargs,
):
super().__init__()
self.update_y = update_y
self.hidden_size_x = hidden_size_x
self.hidden_size_y = hidden_size_y
self.mod_x = operations.Linear(hidden_size_x, 4 * hidden_size_x, device=device, dtype=dtype)
if self.update_y:
self.mod_y = operations.Linear(hidden_size_x, 4 * hidden_size_y, device=device, dtype=dtype)
else:
self.mod_y = operations.Linear(hidden_size_x, hidden_size_y, device=device, dtype=dtype)
# Self-attention:
self.attn = AsymmetricAttention(
hidden_size_x,
hidden_size_y,
num_heads=num_heads,
update_y=update_y,
device=device,
dtype=dtype,
operations=operations,
**block_kwargs,
)
# MLP.
mlp_hidden_dim_x = int(hidden_size_x * mlp_ratio_x)
assert mlp_hidden_dim_x == int(1536 * 8)
self.mlp_x = FeedForward(
in_features=hidden_size_x,
hidden_size=mlp_hidden_dim_x,
multiple_of=256,
ffn_dim_multiplier=None,
device=device,
dtype=dtype,
operations=operations,
)
# MLP for text not needed in last block.
if self.update_y:
mlp_hidden_dim_y = int(hidden_size_y * mlp_ratio_y)
self.mlp_y = FeedForward(
in_features=hidden_size_y,
hidden_size=mlp_hidden_dim_y,
multiple_of=256,
ffn_dim_multiplier=None,
device=device,
dtype=dtype,
operations=operations,
)
def forward(
self,
x: torch.Tensor,
c: torch.Tensor,
y: torch.Tensor,
**attn_kwargs,
):
"""Forward pass of a block.
Args:
x: (B, N, dim) tensor of visual tokens
c: (B, dim) tensor of conditioned features
y: (B, L, dim) tensor of text tokens
num_frames: Number of frames in the video. N = num_frames * num_spatial_tokens
Returns:
x: (B, N, dim) tensor of visual tokens after block
y: (B, L, dim) tensor of text tokens after block
"""
N = x.size(1)
c = F.silu(c)
mod_x = self.mod_x(c)
scale_msa_x, gate_msa_x, scale_mlp_x, gate_mlp_x = mod_x.chunk(4, dim=1)
mod_y = self.mod_y(c)
if self.update_y:
scale_msa_y, gate_msa_y, scale_mlp_y, gate_mlp_y = mod_y.chunk(4, dim=1)
else:
scale_msa_y = mod_y
# Self-attention block.
x_attn, y_attn = self.attn(
x,
y,
scale_x=scale_msa_x,
scale_y=scale_msa_y,
**attn_kwargs,
)
assert x_attn.size(1) == N
x = residual_tanh_gated_rmsnorm(x, x_attn, gate_msa_x)
if self.update_y:
y = residual_tanh_gated_rmsnorm(y, y_attn, gate_msa_y)
# MLP block.
x = self.ff_block_x(x, scale_mlp_x, gate_mlp_x)
if self.update_y:
y = self.ff_block_y(y, scale_mlp_y, gate_mlp_y)
return x, y
def ff_block_x(self, x, scale_x, gate_x):
x_mod = modulated_rmsnorm(x, scale_x)
x_res = self.mlp_x(x_mod)
x = residual_tanh_gated_rmsnorm(x, x_res, gate_x) # Sandwich norm
return x
def ff_block_y(self, y, scale_y, gate_y):
y_mod = modulated_rmsnorm(y, scale_y)
y_res = self.mlp_y(y_mod)
y = residual_tanh_gated_rmsnorm(y, y_res, gate_y) # Sandwich norm
return y
class FinalLayer(nn.Module):
"""
The final layer of DiT.
"""
def __init__(
self,
hidden_size,
patch_size,
out_channels,
device: Optional[torch.device] = None,
dtype=None,
operations=None,
):
super().__init__()
self.norm_final = operations.LayerNorm(
hidden_size, elementwise_affine=False, eps=1e-6, device=device, dtype=dtype
)
self.mod = operations.Linear(hidden_size, 2 * hidden_size, device=device, dtype=dtype)
self.linear = operations.Linear(
hidden_size, patch_size * patch_size * out_channels, device=device, dtype=dtype
)
def forward(self, x, c):
c = F.silu(c)
shift, scale = self.mod(c).chunk(2, dim=1)
x = modulate(self.norm_final(x), shift, scale)
x = self.linear(x)
return x
class AsymmDiTJoint(nn.Module):
"""
Diffusion model with a Transformer backbone.
Ingests text embeddings instead of a label.
"""
def __init__(
self,
*,
patch_size=2,
in_channels=4,
hidden_size_x=1152,
hidden_size_y=1152,
depth=48,
num_heads=16,
mlp_ratio_x=8.0,
mlp_ratio_y=4.0,
use_t5: bool = False,
t5_feat_dim: int = 4096,
t5_token_length: int = 256,
learn_sigma=True,
patch_embed_bias: bool = True,
timestep_mlp_bias: bool = True,
attend_to_padding: bool = False,
timestep_scale: Optional[float] = None,
use_extended_posenc: bool = False,
posenc_preserve_area: bool = False,
rope_theta: float = 10000.0,
image_model=None,
device: Optional[torch.device] = None,
dtype=None,
operations=None,
**block_kwargs,
):
super().__init__()
self.dtype = dtype
self.learn_sigma = learn_sigma
self.in_channels = in_channels
self.out_channels = in_channels * 2 if learn_sigma else in_channels
self.patch_size = patch_size
self.num_heads = num_heads
self.hidden_size_x = hidden_size_x
self.hidden_size_y = hidden_size_y
self.head_dim = (
hidden_size_x // num_heads
) # Head dimension and count is determined by visual.
self.attend_to_padding = attend_to_padding
self.use_extended_posenc = use_extended_posenc
self.posenc_preserve_area = posenc_preserve_area
self.use_t5 = use_t5
self.t5_token_length = t5_token_length
self.t5_feat_dim = t5_feat_dim
self.rope_theta = (
rope_theta # Scaling factor for frequency computation for temporal RoPE.
)
self.x_embedder = PatchEmbed(
patch_size=patch_size,
in_chans=in_channels,
embed_dim=hidden_size_x,
bias=patch_embed_bias,
dtype=dtype,
device=device,
operations=operations
)
# Conditionings
# Timestep
self.t_embedder = TimestepEmbedder(
hidden_size_x, bias=timestep_mlp_bias, timestep_scale=timestep_scale, dtype=dtype, device=device, operations=operations
)
if self.use_t5:
# Caption Pooling (T5)
self.t5_y_embedder = AttentionPool(
t5_feat_dim, num_heads=8, output_dim=hidden_size_x, dtype=dtype, device=device, operations=operations
)
# Dense Embedding Projection (T5)
self.t5_yproj = operations.Linear(
t5_feat_dim, hidden_size_y, bias=True, dtype=dtype, device=device
)
# Initialize pos_frequencies as an empty parameter.
self.pos_frequencies = nn.Parameter(
torch.empty(3, self.num_heads, self.head_dim // 2, dtype=dtype, device=device)
)
assert not self.attend_to_padding
# for depth 48:
# b = 0: AsymmetricJointBlock, update_y=True
# b = 1: AsymmetricJointBlock, update_y=True
# ...
# b = 46: AsymmetricJointBlock, update_y=True
# b = 47: AsymmetricJointBlock, update_y=False. No need to update text features.
blocks = []
for b in range(depth):
# Joint multi-modal block
update_y = b < depth - 1
block = AsymmetricJointBlock(
hidden_size_x,
hidden_size_y,
num_heads,
mlp_ratio_x=mlp_ratio_x,
mlp_ratio_y=mlp_ratio_y,
update_y=update_y,
attend_to_padding=attend_to_padding,
device=device,
dtype=dtype,
operations=operations,
**block_kwargs,
)
blocks.append(block)
self.blocks = nn.ModuleList(blocks)
self.final_layer = FinalLayer(
hidden_size_x, patch_size, self.out_channels, dtype=dtype, device=device, operations=operations
)
def embed_x(self, x: torch.Tensor) -> torch.Tensor:
"""
Args:
x: (B, C=12, T, H, W) tensor of visual tokens
Returns:
x: (B, C=3072, N) tensor of visual tokens with positional embedding.
"""
return self.x_embedder(x) # Convert BcTHW to BCN
def prepare(
self,
x: torch.Tensor,
sigma: torch.Tensor,
t5_feat: torch.Tensor,
t5_mask: torch.Tensor,
):
"""Prepare input and conditioning embeddings."""
# Visual patch embeddings with positional encoding.
T, H, W = x.shape[-3:]
pH, pW = H // self.patch_size, W // self.patch_size
x = self.embed_x(x) # (B, N, D), where N = T * H * W / patch_size ** 2
assert x.ndim == 3
pH, pW = H // self.patch_size, W // self.patch_size
N = T * pH * pW
assert x.size(1) == N
pos = create_position_matrix(
T, pH=pH, pW=pW, device=x.device, dtype=torch.float32
) # (N, 3)
rope_cos, rope_sin = compute_mixed_rotation(
freqs=comfy.ops.cast_to(self.pos_frequencies, dtype=x.dtype, device=x.device), pos=pos
) # Each are (N, num_heads, dim // 2)
c_t = self.t_embedder(1 - sigma, out_dtype=x.dtype) # (B, D)
t5_y_pool = self.t5_y_embedder(t5_feat, t5_mask) # (B, D)
c = c_t + t5_y_pool
y_feat = self.t5_yproj(t5_feat) # (B, L, t5_feat_dim) --> (B, L, D)
return x, c, y_feat, rope_cos, rope_sin
def forward(
self,
x: torch.Tensor,
timestep: torch.Tensor,
context: List[torch.Tensor],
attention_mask: List[torch.Tensor],
num_tokens=256,
packed_indices: Dict[str, torch.Tensor] = None,
rope_cos: torch.Tensor = None,
rope_sin: torch.Tensor = None,
control=None, transformer_options={}, **kwargs
):
patches_replace = transformer_options.get("patches_replace", {})
y_feat = context
y_mask = attention_mask
sigma = timestep
"""Forward pass of DiT.
Args:
x: (B, C, T, H, W) tensor of spatial inputs (images or latent representations of images)
sigma: (B,) tensor of noise standard deviations
y_feat: List((B, L, y_feat_dim) tensor of caption token features. For SDXL text encoders: L=77, y_feat_dim=2048)
y_mask: List((B, L) boolean tensor indicating which tokens are not padding)
packed_indices: Dict with keys for Flash Attention. Result of compute_packed_indices.
"""
B, _, T, H, W = x.shape
x, c, y_feat, rope_cos, rope_sin = self.prepare(
x, sigma, y_feat, y_mask
)
del y_mask
blocks_replace = patches_replace.get("dit", {})
for i, block in enumerate(self.blocks):
if ("double_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"], out["txt"] = block(
args["img"],
args["vec"],
args["txt"],
rope_cos=args["rope_cos"],
rope_sin=args["rope_sin"],
crop_y=args["num_tokens"]
)
return out
out = blocks_replace[("double_block", i)]({"img": x, "txt": y_feat, "vec": c, "rope_cos": rope_cos, "rope_sin": rope_sin, "num_tokens": num_tokens}, {"original_block": block_wrap})
y_feat = out["txt"]
x = out["img"]
else:
x, y_feat = block(
x,
c,
y_feat,
rope_cos=rope_cos,
rope_sin=rope_sin,
crop_y=num_tokens,
) # (B, M, D), (B, L, D)
del y_feat # Final layers don't use dense text features.
x = self.final_layer(x, c) # (B, M, patch_size ** 2 * out_channels)
x = rearrange(
x,
"B (T hp wp) (p1 p2 c) -> B c T (hp p1) (wp p2)",
T=T,
hp=H // self.patch_size,
wp=W // self.patch_size,
p1=self.patch_size,
p2=self.patch_size,
c=self.out_channels,
)
return -x

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@ -1,164 +0,0 @@
#original code from https://github.com/genmoai/models under apache 2.0 license
#adapted to ComfyUI
import collections.abc
import math
from itertools import repeat
from typing import Callable, Optional
import torch
import torch.nn as nn
import torch.nn.functional as F
from einops import rearrange
import comfy.ldm.common_dit
# From PyTorch internals
def _ntuple(n):
def parse(x):
if isinstance(x, collections.abc.Iterable) and not isinstance(x, str):
return tuple(x)
return tuple(repeat(x, n))
return parse
to_2tuple = _ntuple(2)
class TimestepEmbedder(nn.Module):
def __init__(
self,
hidden_size: int,
frequency_embedding_size: int = 256,
*,
bias: bool = True,
timestep_scale: Optional[float] = None,
dtype=None,
device=None,
operations=None,
):
super().__init__()
self.mlp = nn.Sequential(
operations.Linear(frequency_embedding_size, hidden_size, bias=bias, dtype=dtype, device=device),
nn.SiLU(),
operations.Linear(hidden_size, hidden_size, bias=bias, dtype=dtype, device=device),
)
self.frequency_embedding_size = frequency_embedding_size
self.timestep_scale = timestep_scale
@staticmethod
def timestep_embedding(t, dim, max_period=10000):
half = dim // 2
freqs = torch.arange(start=0, end=half, dtype=torch.float32, device=t.device)
freqs.mul_(-math.log(max_period) / half).exp_()
args = t[:, None].float() * freqs[None]
embedding = torch.cat([torch.cos(args), torch.sin(args)], dim=-1)
if dim % 2:
embedding = torch.cat(
[embedding, torch.zeros_like(embedding[:, :1])], dim=-1
)
return embedding
def forward(self, t, out_dtype):
if self.timestep_scale is not None:
t = t * self.timestep_scale
t_freq = self.timestep_embedding(t, self.frequency_embedding_size).to(dtype=out_dtype)
t_emb = self.mlp(t_freq)
return t_emb
class FeedForward(nn.Module):
def __init__(
self,
in_features: int,
hidden_size: int,
multiple_of: int,
ffn_dim_multiplier: Optional[float],
device: Optional[torch.device] = None,
dtype=None,
operations=None,
):
super().__init__()
# keep parameter count and computation constant compared to standard FFN
hidden_size = int(2 * hidden_size / 3)
# custom dim factor multiplier
if ffn_dim_multiplier is not None:
hidden_size = int(ffn_dim_multiplier * hidden_size)
hidden_size = multiple_of * ((hidden_size + multiple_of - 1) // multiple_of)
self.hidden_dim = hidden_size
self.w1 = operations.Linear(in_features, 2 * hidden_size, bias=False, device=device, dtype=dtype)
self.w2 = operations.Linear(hidden_size, in_features, bias=False, device=device, dtype=dtype)
def forward(self, x):
x, gate = self.w1(x).chunk(2, dim=-1)
x = self.w2(F.silu(x) * gate)
return x
class PatchEmbed(nn.Module):
def __init__(
self,
patch_size: int = 16,
in_chans: int = 3,
embed_dim: int = 768,
norm_layer: Optional[Callable] = None,
flatten: bool = True,
bias: bool = True,
dynamic_img_pad: bool = False,
dtype=None,
device=None,
operations=None,
):
super().__init__()
self.patch_size = to_2tuple(patch_size)
self.flatten = flatten
self.dynamic_img_pad = dynamic_img_pad
self.proj = operations.Conv2d(
in_chans,
embed_dim,
kernel_size=patch_size,
stride=patch_size,
bias=bias,
device=device,
dtype=dtype,
)
assert norm_layer is None
self.norm = (
norm_layer(embed_dim, device=device) if norm_layer else nn.Identity()
)
def forward(self, x):
B, _C, T, H, W = x.shape
if not self.dynamic_img_pad:
assert H % self.patch_size[0] == 0, f"Input height ({H}) should be divisible by patch size ({self.patch_size[0]})."
assert W % self.patch_size[1] == 0, f"Input width ({W}) should be divisible by patch size ({self.patch_size[1]})."
else:
pad_h = (self.patch_size[0] - H % self.patch_size[0]) % self.patch_size[0]
pad_w = (self.patch_size[1] - W % self.patch_size[1]) % self.patch_size[1]
x = F.pad(x, (0, pad_w, 0, pad_h))
x = rearrange(x, "B C T H W -> (B T) C H W", B=B, T=T)
x = comfy.ldm.common_dit.pad_to_patch_size(x, self.patch_size, padding_mode='circular')
x = self.proj(x)
# Flatten temporal and spatial dimensions.
if not self.flatten:
raise NotImplementedError("Must flatten output.")
x = rearrange(x, "(B T) C H W -> B (T H W) C", B=B, T=T)
x = self.norm(x)
return x
class RMSNorm(torch.nn.Module):
def __init__(self, hidden_size, eps=1e-5, device=None, dtype=None):
super().__init__()
self.eps = eps
self.weight = torch.nn.Parameter(torch.empty(hidden_size, device=device, dtype=dtype))
self.register_parameter("bias", None)
def forward(self, x):
return comfy.ldm.common_dit.rms_norm(x, self.weight, self.eps)

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@ -1,88 +0,0 @@
#original code from https://github.com/genmoai/models under apache 2.0 license
# import functools
import math
import torch
def centers(start: float, stop, num, dtype=None, device=None):
"""linspace through bin centers.
Args:
start (float): Start of the range.
stop (float): End of the range.
num (int): Number of points.
dtype (torch.dtype): Data type of the points.
device (torch.device): Device of the points.
Returns:
centers (Tensor): Centers of the bins. Shape: (num,).
"""
edges = torch.linspace(start, stop, num + 1, dtype=dtype, device=device)
return (edges[:-1] + edges[1:]) / 2
# @functools.lru_cache(maxsize=1)
def create_position_matrix(
T: int,
pH: int,
pW: int,
device: torch.device,
dtype: torch.dtype,
*,
target_area: float = 36864,
):
"""
Args:
T: int - Temporal dimension
pH: int - Height dimension after patchify
pW: int - Width dimension after patchify
Returns:
pos: [T * pH * pW, 3] - position matrix
"""
# Create 1D tensors for each dimension
t = torch.arange(T, dtype=dtype)
# Positionally interpolate to area 36864.
# (3072x3072 frame with 16x16 patches = 192x192 latents).
# This automatically scales rope positions when the resolution changes.
# We use a large target area so the model is more sensitive
# to changes in the learned pos_frequencies matrix.
scale = math.sqrt(target_area / (pW * pH))
w = centers(-pW * scale / 2, pW * scale / 2, pW)
h = centers(-pH * scale / 2, pH * scale / 2, pH)
# Use meshgrid to create 3D grids
grid_t, grid_h, grid_w = torch.meshgrid(t, h, w, indexing="ij")
# Stack and reshape the grids.
pos = torch.stack([grid_t, grid_h, grid_w], dim=-1) # [T, pH, pW, 3]
pos = pos.view(-1, 3) # [T * pH * pW, 3]
pos = pos.to(dtype=dtype, device=device)
return pos
def compute_mixed_rotation(
freqs: torch.Tensor,
pos: torch.Tensor,
):
"""
Project each 3-dim position into per-head, per-head-dim 1D frequencies.
Args:
freqs: [3, num_heads, num_freqs] - learned rotation frequency (for t, row, col) for each head position
pos: [N, 3] - position of each token
num_heads: int
Returns:
freqs_cos: [N, num_heads, num_freqs] - cosine components
freqs_sin: [N, num_heads, num_freqs] - sine components
"""
assert freqs.ndim == 3
freqs_sum = torch.einsum("Nd,dhf->Nhf", pos.to(freqs), freqs)
freqs_cos = torch.cos(freqs_sum)
freqs_sin = torch.sin(freqs_sum)
return freqs_cos, freqs_sin

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@ -1,34 +0,0 @@
#original code from https://github.com/genmoai/models under apache 2.0 license
# Based on Llama3 Implementation.
import torch
def apply_rotary_emb_qk_real(
xqk: torch.Tensor,
freqs_cos: torch.Tensor,
freqs_sin: torch.Tensor,
) -> torch.Tensor:
"""
Apply rotary embeddings to input tensors using the given frequency tensor without complex numbers.
Args:
xqk (torch.Tensor): Query and/or Key tensors to apply rotary embeddings. Shape: (B, S, *, num_heads, D)
Can be either just query or just key, or both stacked along some batch or * dim.
freqs_cos (torch.Tensor): Precomputed cosine frequency tensor.
freqs_sin (torch.Tensor): Precomputed sine frequency tensor.
Returns:
torch.Tensor: The input tensor with rotary embeddings applied.
"""
# Split the last dimension into even and odd parts
xqk_even = xqk[..., 0::2]
xqk_odd = xqk[..., 1::2]
# Apply rotation
cos_part = (xqk_even * freqs_cos - xqk_odd * freqs_sin).type_as(xqk)
sin_part = (xqk_even * freqs_sin + xqk_odd * freqs_cos).type_as(xqk)
# Interleave the results back into the original shape
out = torch.stack([cos_part, sin_part], dim=-1).flatten(-2)
return out

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#original code from https://github.com/genmoai/models under apache 2.0 license
#adapted to ComfyUI
from typing import Optional
import torch
import torch.nn as nn
import torch.nn.functional as F
def modulate(x, shift, scale):
return x * (1 + scale.unsqueeze(1)) + shift.unsqueeze(1)
def pool_tokens(x: torch.Tensor, mask: torch.Tensor, *, keepdim=False) -> torch.Tensor:
"""
Pool tokens in x using mask.
NOTE: We assume x does not require gradients.
Args:
x: (B, L, D) tensor of tokens.
mask: (B, L) boolean tensor indicating which tokens are not padding.
Returns:
pooled: (B, D) tensor of pooled tokens.
"""
assert x.size(1) == mask.size(1) # Expected mask to have same length as tokens.
assert x.size(0) == mask.size(0) # Expected mask to have same batch size as tokens.
mask = mask[:, :, None].to(dtype=x.dtype)
mask = mask / mask.sum(dim=1, keepdim=True).clamp(min=1)
pooled = (x * mask).sum(dim=1, keepdim=keepdim)
return pooled
class AttentionPool(nn.Module):
def __init__(
self,
embed_dim: int,
num_heads: int,
output_dim: int = None,
device: Optional[torch.device] = None,
dtype=None,
operations=None,
):
"""
Args:
spatial_dim (int): Number of tokens in sequence length.
embed_dim (int): Dimensionality of input tokens.
num_heads (int): Number of attention heads.
output_dim (int): Dimensionality of output tokens. Defaults to embed_dim.
"""
super().__init__()
self.num_heads = num_heads
self.to_kv = operations.Linear(embed_dim, 2 * embed_dim, device=device, dtype=dtype)
self.to_q = operations.Linear(embed_dim, embed_dim, device=device, dtype=dtype)
self.to_out = operations.Linear(embed_dim, output_dim or embed_dim, device=device, dtype=dtype)
def forward(self, x, mask):
"""
Args:
x (torch.Tensor): (B, L, D) tensor of input tokens.
mask (torch.Tensor): (B, L) boolean tensor indicating which tokens are not padding.
NOTE: We assume x does not require gradients.
Returns:
x (torch.Tensor): (B, D) tensor of pooled tokens.
"""
D = x.size(2)
# Construct attention mask, shape: (B, 1, num_queries=1, num_keys=1+L).
attn_mask = mask[:, None, None, :].bool() # (B, 1, 1, L).
attn_mask = F.pad(attn_mask, (1, 0), value=True) # (B, 1, 1, 1+L).
# Average non-padding token features. These will be used as the query.
x_pool = pool_tokens(x, mask, keepdim=True) # (B, 1, D)
# Concat pooled features to input sequence.
x = torch.cat([x_pool, x], dim=1) # (B, L+1, D)
# Compute queries, keys, values. Only the mean token is used to create a query.
kv = self.to_kv(x) # (B, L+1, 2 * D)
q = self.to_q(x[:, 0]) # (B, D)
# Extract heads.
head_dim = D // self.num_heads
kv = kv.unflatten(2, (2, self.num_heads, head_dim)) # (B, 1+L, 2, H, head_dim)
kv = kv.transpose(1, 3) # (B, H, 2, 1+L, head_dim)
k, v = kv.unbind(2) # (B, H, 1+L, head_dim)
q = q.unflatten(1, (self.num_heads, head_dim)) # (B, H, head_dim)
q = q.unsqueeze(2) # (B, H, 1, head_dim)
# Compute attention.
x = F.scaled_dot_product_attention(
q, k, v, attn_mask=attn_mask, dropout_p=0.0
) # (B, H, 1, head_dim)
# Concatenate heads and run output.
x = x.squeeze(2).flatten(1, 2) # (B, D = H * head_dim)
x = self.to_out(x)
return x

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@ -1,711 +0,0 @@
#original code from https://github.com/genmoai/models under apache 2.0 license
#adapted to ComfyUI
from typing import List, Optional, Tuple, Union
from functools import partial
import math
import torch
import torch.nn as nn
import torch.nn.functional as F
from einops import rearrange
from comfy.ldm.modules.attention import optimized_attention
import comfy.ops
ops = comfy.ops.disable_weight_init
# import mochi_preview.dit.joint_model.context_parallel as cp
# from mochi_preview.vae.cp_conv import cp_pass_frames, gather_all_frames
def cast_tuple(t, length=1):
return t if isinstance(t, tuple) else ((t,) * length)
class GroupNormSpatial(ops.GroupNorm):
"""
GroupNorm applied per-frame.
"""
def forward(self, x: torch.Tensor, *, chunk_size: int = 8):
B, C, T, H, W = x.shape
x = rearrange(x, "B C T H W -> (B T) C H W")
# Run group norm in chunks.
output = torch.empty_like(x)
for b in range(0, B * T, chunk_size):
output[b : b + chunk_size] = super().forward(x[b : b + chunk_size])
return rearrange(output, "(B T) C H W -> B C T H W", B=B, T=T)
class PConv3d(ops.Conv3d):
def __init__(
self,
in_channels,
out_channels,
kernel_size: Union[int, Tuple[int, int, int]],
stride: Union[int, Tuple[int, int, int]],
causal: bool = True,
context_parallel: bool = True,
**kwargs,
):
self.causal = causal
self.context_parallel = context_parallel
kernel_size = cast_tuple(kernel_size, 3)
stride = cast_tuple(stride, 3)
height_pad = (kernel_size[1] - 1) // 2
width_pad = (kernel_size[2] - 1) // 2
super().__init__(
in_channels=in_channels,
out_channels=out_channels,
kernel_size=kernel_size,
stride=stride,
dilation=(1, 1, 1),
padding=(0, height_pad, width_pad),
**kwargs,
)
def forward(self, x: torch.Tensor):
# Compute padding amounts.
context_size = self.kernel_size[0] - 1
if self.causal:
pad_front = context_size
pad_back = 0
else:
pad_front = context_size // 2
pad_back = context_size - pad_front
# Apply padding.
assert self.padding_mode == "replicate" # DEBUG
mode = "constant" if self.padding_mode == "zeros" else self.padding_mode
x = F.pad(x, (0, 0, 0, 0, pad_front, pad_back), mode=mode)
return super().forward(x)
class Conv1x1(ops.Linear):
"""*1x1 Conv implemented with a linear layer."""
def __init__(self, in_features: int, out_features: int, *args, **kwargs):
super().__init__(in_features, out_features, *args, **kwargs)
def forward(self, x: torch.Tensor):
"""Forward pass.
Args:
x: Input tensor. Shape: [B, C, *] or [B, *, C].
Returns:
x: Output tensor. Shape: [B, C', *] or [B, *, C'].
"""
x = x.movedim(1, -1)
x = super().forward(x)
x = x.movedim(-1, 1)
return x
class DepthToSpaceTime(nn.Module):
def __init__(
self,
temporal_expansion: int,
spatial_expansion: int,
):
super().__init__()
self.temporal_expansion = temporal_expansion
self.spatial_expansion = spatial_expansion
# When printed, this module should show the temporal and spatial expansion factors.
def extra_repr(self):
return f"texp={self.temporal_expansion}, sexp={self.spatial_expansion}"
def forward(self, x: torch.Tensor):
"""Forward pass.
Args:
x: Input tensor. Shape: [B, C, T, H, W].
Returns:
x: Rearranged tensor. Shape: [B, C/(st*s*s), T*st, H*s, W*s].
"""
x = rearrange(
x,
"B (C st sh sw) T H W -> B C (T st) (H sh) (W sw)",
st=self.temporal_expansion,
sh=self.spatial_expansion,
sw=self.spatial_expansion,
)
# cp_rank, _ = cp.get_cp_rank_size()
if self.temporal_expansion > 1: # and cp_rank == 0:
# Drop the first self.temporal_expansion - 1 frames.
# This is because we always want the 3x3x3 conv filter to only apply
# to the first frame, and the first frame doesn't need to be repeated.
assert all(x.shape)
x = x[:, :, self.temporal_expansion - 1 :]
assert all(x.shape)
return x
def norm_fn(
in_channels: int,
affine: bool = True,
):
return GroupNormSpatial(affine=affine, num_groups=32, num_channels=in_channels)
class ResBlock(nn.Module):
"""Residual block that preserves the spatial dimensions."""
def __init__(
self,
channels: int,
*,
affine: bool = True,
attn_block: Optional[nn.Module] = None,
causal: bool = True,
prune_bottleneck: bool = False,
padding_mode: str,
bias: bool = True,
):
super().__init__()
self.channels = channels
assert causal
self.stack = nn.Sequential(
norm_fn(channels, affine=affine),
nn.SiLU(inplace=True),
PConv3d(
in_channels=channels,
out_channels=channels // 2 if prune_bottleneck else channels,
kernel_size=(3, 3, 3),
stride=(1, 1, 1),
padding_mode=padding_mode,
bias=bias,
causal=causal,
),
norm_fn(channels, affine=affine),
nn.SiLU(inplace=True),
PConv3d(
in_channels=channels // 2 if prune_bottleneck else channels,
out_channels=channels,
kernel_size=(3, 3, 3),
stride=(1, 1, 1),
padding_mode=padding_mode,
bias=bias,
causal=causal,
),
)
self.attn_block = attn_block if attn_block else nn.Identity()
def forward(self, x: torch.Tensor):
"""Forward pass.
Args:
x: Input tensor. Shape: [B, C, T, H, W].
"""
residual = x
x = self.stack(x)
x = x + residual
del residual
return self.attn_block(x)
class Attention(nn.Module):
def __init__(
self,
dim: int,
head_dim: int = 32,
qkv_bias: bool = False,
out_bias: bool = True,
qk_norm: bool = True,
) -> None:
super().__init__()
self.head_dim = head_dim
self.num_heads = dim // head_dim
self.qk_norm = qk_norm
self.qkv = nn.Linear(dim, 3 * dim, bias=qkv_bias)
self.out = nn.Linear(dim, dim, bias=out_bias)
def forward(
self,
x: torch.Tensor,
) -> torch.Tensor:
"""Compute temporal self-attention.
Args:
x: Input tensor. Shape: [B, C, T, H, W].
chunk_size: Chunk size for large tensors.
Returns:
x: Output tensor. Shape: [B, C, T, H, W].
"""
B, _, T, H, W = x.shape
if T == 1:
# No attention for single frame.
x = x.movedim(1, -1) # [B, C, T, H, W] -> [B, T, H, W, C]
qkv = self.qkv(x)
_, _, x = qkv.chunk(3, dim=-1) # Throw away queries and keys.
x = self.out(x)
return x.movedim(-1, 1) # [B, T, H, W, C] -> [B, C, T, H, W]
# 1D temporal attention.
x = rearrange(x, "B C t h w -> (B h w) t C")
qkv = self.qkv(x)
# Input: qkv with shape [B, t, 3 * num_heads * head_dim]
# Output: x with shape [B, num_heads, t, head_dim]
q, k, v = qkv.view(qkv.shape[0], qkv.shape[1], 3, self.num_heads, self.head_dim).transpose(1, 3).unbind(2)
if self.qk_norm:
q = F.normalize(q, p=2, dim=-1)
k = F.normalize(k, p=2, dim=-1)
x = optimized_attention(q, k, v, self.num_heads, skip_reshape=True)
assert x.size(0) == q.size(0)
x = self.out(x)
x = rearrange(x, "(B h w) t C -> B C t h w", B=B, h=H, w=W)
return x
class AttentionBlock(nn.Module):
def __init__(
self,
dim: int,
**attn_kwargs,
) -> None:
super().__init__()
self.norm = norm_fn(dim)
self.attn = Attention(dim, **attn_kwargs)
def forward(self, x: torch.Tensor) -> torch.Tensor:
return x + self.attn(self.norm(x))
class CausalUpsampleBlock(nn.Module):
def __init__(
self,
in_channels: int,
out_channels: int,
num_res_blocks: int,
*,
temporal_expansion: int = 2,
spatial_expansion: int = 2,
**block_kwargs,
):
super().__init__()
blocks = []
for _ in range(num_res_blocks):
blocks.append(block_fn(in_channels, **block_kwargs))
self.blocks = nn.Sequential(*blocks)
self.temporal_expansion = temporal_expansion
self.spatial_expansion = spatial_expansion
# Change channels in the final convolution layer.
self.proj = Conv1x1(
in_channels,
out_channels * temporal_expansion * (spatial_expansion**2),
)
self.d2st = DepthToSpaceTime(
temporal_expansion=temporal_expansion, spatial_expansion=spatial_expansion
)
def forward(self, x):
x = self.blocks(x)
x = self.proj(x)
x = self.d2st(x)
return x
def block_fn(channels, *, affine: bool = True, has_attention: bool = False, **block_kwargs):
attn_block = AttentionBlock(channels) if has_attention else None
return ResBlock(channels, affine=affine, attn_block=attn_block, **block_kwargs)
class DownsampleBlock(nn.Module):
def __init__(
self,
in_channels: int,
out_channels: int,
num_res_blocks,
*,
temporal_reduction=2,
spatial_reduction=2,
**block_kwargs,
):
"""
Downsample block for the VAE encoder.
Args:
in_channels: Number of input channels.
out_channels: Number of output channels.
num_res_blocks: Number of residual blocks.
temporal_reduction: Temporal reduction factor.
spatial_reduction: Spatial reduction factor.
"""
super().__init__()
layers = []
# Change the channel count in the strided convolution.
# This lets the ResBlock have uniform channel count,
# as in ConvNeXt.
assert in_channels != out_channels
layers.append(
PConv3d(
in_channels=in_channels,
out_channels=out_channels,
kernel_size=(temporal_reduction, spatial_reduction, spatial_reduction),
stride=(temporal_reduction, spatial_reduction, spatial_reduction),
# First layer in each block always uses replicate padding
padding_mode="replicate",
bias=block_kwargs["bias"],
)
)
for _ in range(num_res_blocks):
layers.append(block_fn(out_channels, **block_kwargs))
self.layers = nn.Sequential(*layers)
def forward(self, x):
return self.layers(x)
def add_fourier_features(inputs: torch.Tensor, start=6, stop=8, step=1):
num_freqs = (stop - start) // step
assert inputs.ndim == 5
C = inputs.size(1)
# Create Base 2 Fourier features.
freqs = torch.arange(start, stop, step, dtype=inputs.dtype, device=inputs.device)
assert num_freqs == len(freqs)
w = torch.pow(2.0, freqs) * (2 * torch.pi) # [num_freqs]
C = inputs.shape[1]
w = w.repeat(C)[None, :, None, None, None] # [1, C * num_freqs, 1, 1, 1]
# Interleaved repeat of input channels to match w.
h = inputs.repeat_interleave(num_freqs, dim=1) # [B, C * num_freqs, T, H, W]
# Scale channels by frequency.
h = w * h
return torch.cat(
[
inputs,
torch.sin(h),
torch.cos(h),
],
dim=1,
)
class FourierFeatures(nn.Module):
def __init__(self, start: int = 6, stop: int = 8, step: int = 1):
super().__init__()
self.start = start
self.stop = stop
self.step = step
def forward(self, inputs):
"""Add Fourier features to inputs.
Args:
inputs: Input tensor. Shape: [B, C, T, H, W]
Returns:
h: Output tensor. Shape: [B, (1 + 2 * num_freqs) * C, T, H, W]
"""
return add_fourier_features(inputs, self.start, self.stop, self.step)
class Decoder(nn.Module):
def __init__(
self,
*,
out_channels: int = 3,
latent_dim: int,
base_channels: int,
channel_multipliers: List[int],
num_res_blocks: List[int],
temporal_expansions: Optional[List[int]] = None,
spatial_expansions: Optional[List[int]] = None,
has_attention: List[bool],
output_norm: bool = True,
nonlinearity: str = "silu",
output_nonlinearity: str = "silu",
causal: bool = True,
**block_kwargs,
):
super().__init__()
self.input_channels = latent_dim
self.base_channels = base_channels
self.channel_multipliers = channel_multipliers
self.num_res_blocks = num_res_blocks
self.output_nonlinearity = output_nonlinearity
assert nonlinearity == "silu"
assert causal
ch = [mult * base_channels for mult in channel_multipliers]
self.num_up_blocks = len(ch) - 1
assert len(num_res_blocks) == self.num_up_blocks + 2
blocks = []
first_block = [
ops.Conv3d(latent_dim, ch[-1], kernel_size=(1, 1, 1))
] # Input layer.
# First set of blocks preserve channel count.
for _ in range(num_res_blocks[-1]):
first_block.append(
block_fn(
ch[-1],
has_attention=has_attention[-1],
causal=causal,
**block_kwargs,
)
)
blocks.append(nn.Sequential(*first_block))
assert len(temporal_expansions) == len(spatial_expansions) == self.num_up_blocks
assert len(num_res_blocks) == len(has_attention) == self.num_up_blocks + 2
upsample_block_fn = CausalUpsampleBlock
for i in range(self.num_up_blocks):
block = upsample_block_fn(
ch[-i - 1],
ch[-i - 2],
num_res_blocks=num_res_blocks[-i - 2],
has_attention=has_attention[-i - 2],
temporal_expansion=temporal_expansions[-i - 1],
spatial_expansion=spatial_expansions[-i - 1],
causal=causal,
**block_kwargs,
)
blocks.append(block)
assert not output_norm
# Last block. Preserve channel count.
last_block = []
for _ in range(num_res_blocks[0]):
last_block.append(
block_fn(
ch[0], has_attention=has_attention[0], causal=causal, **block_kwargs
)
)
blocks.append(nn.Sequential(*last_block))
self.blocks = nn.ModuleList(blocks)
self.output_proj = Conv1x1(ch[0], out_channels)
def forward(self, x):
"""Forward pass.
Args:
x: Latent tensor. Shape: [B, input_channels, t, h, w]. Scaled [-1, 1].
Returns:
x: Reconstructed video tensor. Shape: [B, C, T, H, W]. Scaled to [-1, 1].
T + 1 = (t - 1) * 4.
H = h * 16, W = w * 16.
"""
for block in self.blocks:
x = block(x)
if self.output_nonlinearity == "silu":
x = F.silu(x, inplace=not self.training)
else:
assert (
not self.output_nonlinearity
) # StyleGAN3 omits the to-RGB nonlinearity.
return self.output_proj(x).contiguous()
class LatentDistribution:
def __init__(self, mean: torch.Tensor, logvar: torch.Tensor):
"""Initialize latent distribution.
Args:
mean: Mean of the distribution. Shape: [B, C, T, H, W].
logvar: Logarithm of variance of the distribution. Shape: [B, C, T, H, W].
"""
assert mean.shape == logvar.shape
self.mean = mean
self.logvar = logvar
def sample(self, temperature=1.0, generator: torch.Generator = None, noise=None):
if temperature == 0.0:
return self.mean
if noise is None:
noise = torch.randn(self.mean.shape, device=self.mean.device, dtype=self.mean.dtype, generator=generator)
else:
assert noise.device == self.mean.device
noise = noise.to(self.mean.dtype)
if temperature != 1.0:
raise NotImplementedError(f"Temperature {temperature} is not supported.")
# Just Gaussian sample with no scaling of variance.
return noise * torch.exp(self.logvar * 0.5) + self.mean
def mode(self):
return self.mean
class Encoder(nn.Module):
def __init__(
self,
*,
in_channels: int,
base_channels: int,
channel_multipliers: List[int],
num_res_blocks: List[int],
latent_dim: int,
temporal_reductions: List[int],
spatial_reductions: List[int],
prune_bottlenecks: List[bool],
has_attentions: List[bool],
affine: bool = True,
bias: bool = True,
input_is_conv_1x1: bool = False,
padding_mode: str,
):
super().__init__()
self.temporal_reductions = temporal_reductions
self.spatial_reductions = spatial_reductions
self.base_channels = base_channels
self.channel_multipliers = channel_multipliers
self.num_res_blocks = num_res_blocks
self.latent_dim = latent_dim
self.fourier_features = FourierFeatures()
ch = [mult * base_channels for mult in channel_multipliers]
num_down_blocks = len(ch) - 1
assert len(num_res_blocks) == num_down_blocks + 2
layers = (
[ops.Conv3d(in_channels, ch[0], kernel_size=(1, 1, 1), bias=True)]
if not input_is_conv_1x1
else [Conv1x1(in_channels, ch[0])]
)
assert len(prune_bottlenecks) == num_down_blocks + 2
assert len(has_attentions) == num_down_blocks + 2
block = partial(block_fn, padding_mode=padding_mode, affine=affine, bias=bias)
for _ in range(num_res_blocks[0]):
layers.append(block(ch[0], has_attention=has_attentions[0], prune_bottleneck=prune_bottlenecks[0]))
prune_bottlenecks = prune_bottlenecks[1:]
has_attentions = has_attentions[1:]
assert len(temporal_reductions) == len(spatial_reductions) == len(ch) - 1
for i in range(num_down_blocks):
layer = DownsampleBlock(
ch[i],
ch[i + 1],
num_res_blocks=num_res_blocks[i + 1],
temporal_reduction=temporal_reductions[i],
spatial_reduction=spatial_reductions[i],
prune_bottleneck=prune_bottlenecks[i],
has_attention=has_attentions[i],
affine=affine,
bias=bias,
padding_mode=padding_mode,
)
layers.append(layer)
# Additional blocks.
for _ in range(num_res_blocks[-1]):
layers.append(block(ch[-1], has_attention=has_attentions[-1], prune_bottleneck=prune_bottlenecks[-1]))
self.layers = nn.Sequential(*layers)
# Output layers.
self.output_norm = norm_fn(ch[-1])
self.output_proj = Conv1x1(ch[-1], 2 * latent_dim, bias=False)
@property
def temporal_downsample(self):
return math.prod(self.temporal_reductions)
@property
def spatial_downsample(self):
return math.prod(self.spatial_reductions)
def forward(self, x) -> LatentDistribution:
"""Forward pass.
Args:
x: Input video tensor. Shape: [B, C, T, H, W]. Scaled to [-1, 1]
Returns:
means: Latent tensor. Shape: [B, latent_dim, t, h, w]. Scaled [-1, 1].
h = H // 8, w = W // 8, t - 1 = (T - 1) // 6
logvar: Shape: [B, latent_dim, t, h, w].
"""
assert x.ndim == 5, f"Expected 5D input, got {x.shape}"
x = self.fourier_features(x)
x = self.layers(x)
x = self.output_norm(x)
x = F.silu(x, inplace=True)
x = self.output_proj(x)
means, logvar = torch.chunk(x, 2, dim=1)
assert means.ndim == 5
assert logvar.shape == means.shape
assert means.size(1) == self.latent_dim
return LatentDistribution(means, logvar)
class VideoVAE(nn.Module):
def __init__(self):
super().__init__()
self.encoder = Encoder(
in_channels=15,
base_channels=64,
channel_multipliers=[1, 2, 4, 6],
num_res_blocks=[3, 3, 4, 6, 3],
latent_dim=12,
temporal_reductions=[1, 2, 3],
spatial_reductions=[2, 2, 2],
prune_bottlenecks=[False, False, False, False, False],
has_attentions=[False, True, True, True, True],
affine=True,
bias=True,
input_is_conv_1x1=True,
padding_mode="replicate"
)
self.decoder = Decoder(
out_channels=3,
base_channels=128,
channel_multipliers=[1, 2, 4, 6],
temporal_expansions=[1, 2, 3],
spatial_expansions=[2, 2, 2],
num_res_blocks=[3, 3, 4, 6, 3],
latent_dim=12,
has_attention=[False, False, False, False, False],
padding_mode="replicate",
output_norm=False,
nonlinearity="silu",
output_nonlinearity="silu",
causal=True,
)
def encode(self, x):
return self.encoder(x).mode()
def decode(self, x):
return self.decoder(x)

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@ -1,799 +0,0 @@
from typing import Optional, Tuple, List
import torch
import torch.nn as nn
import einops
from einops import repeat
from comfy.ldm.lightricks.model import TimestepEmbedding, Timesteps
import torch.nn.functional as F
from comfy.ldm.flux.math import apply_rope, rope
from comfy.ldm.flux.layers import LastLayer
from comfy.ldm.modules.attention import optimized_attention
import comfy.model_management
import comfy.ldm.common_dit
# Copied from https://github.com/black-forest-labs/flux/blob/main/src/flux/modules/layers.py
class EmbedND(nn.Module):
def __init__(self, theta: int, axes_dim: List[int]):
super().__init__()
self.theta = theta
self.axes_dim = axes_dim
def forward(self, ids: torch.Tensor) -> torch.Tensor:
n_axes = ids.shape[-1]
emb = torch.cat(
[rope(ids[..., i], self.axes_dim[i], self.theta) for i in range(n_axes)],
dim=-3,
)
return emb.unsqueeze(2)
class PatchEmbed(nn.Module):
def __init__(
self,
patch_size=2,
in_channels=4,
out_channels=1024,
dtype=None, device=None, operations=None
):
super().__init__()
self.patch_size = patch_size
self.out_channels = out_channels
self.proj = operations.Linear(in_channels * patch_size * patch_size, out_channels, bias=True, dtype=dtype, device=device)
def forward(self, latent):
latent = self.proj(latent)
return latent
class PooledEmbed(nn.Module):
def __init__(self, text_emb_dim, hidden_size, dtype=None, device=None, operations=None):
super().__init__()
self.pooled_embedder = TimestepEmbedding(in_channels=text_emb_dim, time_embed_dim=hidden_size, dtype=dtype, device=device, operations=operations)
def forward(self, pooled_embed):
return self.pooled_embedder(pooled_embed)
class TimestepEmbed(nn.Module):
def __init__(self, hidden_size, frequency_embedding_size=256, dtype=None, device=None, operations=None):
super().__init__()
self.time_proj = Timesteps(num_channels=frequency_embedding_size, flip_sin_to_cos=True, downscale_freq_shift=0)
self.timestep_embedder = TimestepEmbedding(in_channels=frequency_embedding_size, time_embed_dim=hidden_size, dtype=dtype, device=device, operations=operations)
def forward(self, timesteps, wdtype):
t_emb = self.time_proj(timesteps).to(dtype=wdtype)
t_emb = self.timestep_embedder(t_emb)
return t_emb
def attention(query: torch.Tensor, key: torch.Tensor, value: torch.Tensor):
return optimized_attention(query.view(query.shape[0], -1, query.shape[-1] * query.shape[-2]), key.view(key.shape[0], -1, key.shape[-1] * key.shape[-2]), value.view(value.shape[0], -1, value.shape[-1] * value.shape[-2]), query.shape[2])
class HiDreamAttnProcessor_flashattn:
"""Attention processor used typically in processing the SD3-like self-attention projections."""
def __call__(
self,
attn,
image_tokens: torch.FloatTensor,
image_tokens_masks: Optional[torch.FloatTensor] = None,
text_tokens: Optional[torch.FloatTensor] = None,
rope: torch.FloatTensor = None,
*args,
**kwargs,
) -> torch.FloatTensor:
dtype = image_tokens.dtype
batch_size = image_tokens.shape[0]
query_i = attn.q_rms_norm(attn.to_q(image_tokens)).to(dtype=dtype)
key_i = attn.k_rms_norm(attn.to_k(image_tokens)).to(dtype=dtype)
value_i = attn.to_v(image_tokens)
inner_dim = key_i.shape[-1]
head_dim = inner_dim // attn.heads
query_i = query_i.view(batch_size, -1, attn.heads, head_dim)
key_i = key_i.view(batch_size, -1, attn.heads, head_dim)
value_i = value_i.view(batch_size, -1, attn.heads, head_dim)
if image_tokens_masks is not None:
key_i = key_i * image_tokens_masks.view(batch_size, -1, 1, 1)
if not attn.single:
query_t = attn.q_rms_norm_t(attn.to_q_t(text_tokens)).to(dtype=dtype)
key_t = attn.k_rms_norm_t(attn.to_k_t(text_tokens)).to(dtype=dtype)
value_t = attn.to_v_t(text_tokens)
query_t = query_t.view(batch_size, -1, attn.heads, head_dim)
key_t = key_t.view(batch_size, -1, attn.heads, head_dim)
value_t = value_t.view(batch_size, -1, attn.heads, head_dim)
num_image_tokens = query_i.shape[1]
num_text_tokens = query_t.shape[1]
query = torch.cat([query_i, query_t], dim=1)
key = torch.cat([key_i, key_t], dim=1)
value = torch.cat([value_i, value_t], dim=1)
else:
query = query_i
key = key_i
value = value_i
if query.shape[-1] == rope.shape[-3] * 2:
query, key = apply_rope(query, key, rope)
else:
query_1, query_2 = query.chunk(2, dim=-1)
key_1, key_2 = key.chunk(2, dim=-1)
query_1, key_1 = apply_rope(query_1, key_1, rope)
query = torch.cat([query_1, query_2], dim=-1)
key = torch.cat([key_1, key_2], dim=-1)
hidden_states = attention(query, key, value)
if not attn.single:
hidden_states_i, hidden_states_t = torch.split(hidden_states, [num_image_tokens, num_text_tokens], dim=1)
hidden_states_i = attn.to_out(hidden_states_i)
hidden_states_t = attn.to_out_t(hidden_states_t)
return hidden_states_i, hidden_states_t
else:
hidden_states = attn.to_out(hidden_states)
return hidden_states
class HiDreamAttention(nn.Module):
def __init__(
self,
query_dim: int,
heads: int = 8,
dim_head: int = 64,
upcast_attention: bool = False,
upcast_softmax: bool = False,
scale_qk: bool = True,
eps: float = 1e-5,
processor = None,
out_dim: int = None,
single: bool = False,
dtype=None, device=None, operations=None
):
# super(Attention, self).__init__()
super().__init__()
self.inner_dim = out_dim if out_dim is not None else dim_head * heads
self.query_dim = query_dim
self.upcast_attention = upcast_attention
self.upcast_softmax = upcast_softmax
self.out_dim = out_dim if out_dim is not None else query_dim
self.scale_qk = scale_qk
self.scale = dim_head**-0.5 if self.scale_qk else 1.0
self.heads = out_dim // dim_head if out_dim is not None else heads
self.sliceable_head_dim = heads
self.single = single
linear_cls = operations.Linear
self.linear_cls = linear_cls
self.to_q = linear_cls(query_dim, self.inner_dim, dtype=dtype, device=device)
self.to_k = linear_cls(self.inner_dim, self.inner_dim, dtype=dtype, device=device)
self.to_v = linear_cls(self.inner_dim, self.inner_dim, dtype=dtype, device=device)
self.to_out = linear_cls(self.inner_dim, self.out_dim, dtype=dtype, device=device)
self.q_rms_norm = operations.RMSNorm(self.inner_dim, eps, dtype=dtype, device=device)
self.k_rms_norm = operations.RMSNorm(self.inner_dim, eps, dtype=dtype, device=device)
if not single:
self.to_q_t = linear_cls(query_dim, self.inner_dim, dtype=dtype, device=device)
self.to_k_t = linear_cls(self.inner_dim, self.inner_dim, dtype=dtype, device=device)
self.to_v_t = linear_cls(self.inner_dim, self.inner_dim, dtype=dtype, device=device)
self.to_out_t = linear_cls(self.inner_dim, self.out_dim, dtype=dtype, device=device)
self.q_rms_norm_t = operations.RMSNorm(self.inner_dim, eps, dtype=dtype, device=device)
self.k_rms_norm_t = operations.RMSNorm(self.inner_dim, eps, dtype=dtype, device=device)
self.processor = processor
def forward(
self,
norm_image_tokens: torch.FloatTensor,
image_tokens_masks: torch.FloatTensor = None,
norm_text_tokens: torch.FloatTensor = None,
rope: torch.FloatTensor = None,
) -> torch.Tensor:
return self.processor(
self,
image_tokens = norm_image_tokens,
image_tokens_masks = image_tokens_masks,
text_tokens = norm_text_tokens,
rope = rope,
)
class FeedForwardSwiGLU(nn.Module):
def __init__(
self,
dim: int,
hidden_dim: int,
multiple_of: int = 256,
ffn_dim_multiplier: Optional[float] = None,
dtype=None, device=None, operations=None
):
super().__init__()
hidden_dim = int(2 * hidden_dim / 3)
# custom dim factor multiplier
if ffn_dim_multiplier is not None:
hidden_dim = int(ffn_dim_multiplier * hidden_dim)
hidden_dim = multiple_of * (
(hidden_dim + multiple_of - 1) // multiple_of
)
self.w1 = operations.Linear(dim, hidden_dim, bias=False, dtype=dtype, device=device)
self.w2 = operations.Linear(hidden_dim, dim, bias=False, dtype=dtype, device=device)
self.w3 = operations.Linear(dim, hidden_dim, bias=False, dtype=dtype, device=device)
def forward(self, x):
return self.w2(torch.nn.functional.silu(self.w1(x)) * self.w3(x))
# Modified from https://github.com/deepseek-ai/DeepSeek-V3/blob/main/inference/model.py
class MoEGate(nn.Module):
def __init__(self, embed_dim, num_routed_experts=4, num_activated_experts=2, aux_loss_alpha=0.01, dtype=None, device=None, operations=None):
super().__init__()
self.top_k = num_activated_experts
self.n_routed_experts = num_routed_experts
self.scoring_func = 'softmax'
self.alpha = aux_loss_alpha
self.seq_aux = False
# topk selection algorithm
self.norm_topk_prob = False
self.gating_dim = embed_dim
self.weight = nn.Parameter(torch.empty((self.n_routed_experts, self.gating_dim), dtype=dtype, device=device))
self.reset_parameters()
def reset_parameters(self) -> None:
pass
# import torch.nn.init as init
# init.kaiming_uniform_(self.weight, a=math.sqrt(5))
def forward(self, hidden_states):
bsz, seq_len, h = hidden_states.shape
### compute gating score
hidden_states = hidden_states.view(-1, h)
logits = F.linear(hidden_states, comfy.model_management.cast_to(self.weight, dtype=hidden_states.dtype, device=hidden_states.device), None)
if self.scoring_func == 'softmax':
scores = logits.softmax(dim=-1)
else:
raise NotImplementedError(f'insupportable scoring function for MoE gating: {self.scoring_func}')
### select top-k experts
topk_weight, topk_idx = torch.topk(scores, k=self.top_k, dim=-1, sorted=False)
### norm gate to sum 1
if self.top_k > 1 and self.norm_topk_prob:
denominator = topk_weight.sum(dim=-1, keepdim=True) + 1e-20
topk_weight = topk_weight / denominator
aux_loss = None
return topk_idx, topk_weight, aux_loss
# Modified from https://github.com/deepseek-ai/DeepSeek-V3/blob/main/inference/model.py
class MOEFeedForwardSwiGLU(nn.Module):
def __init__(
self,
dim: int,
hidden_dim: int,
num_routed_experts: int,
num_activated_experts: int,
dtype=None, device=None, operations=None
):
super().__init__()
self.shared_experts = FeedForwardSwiGLU(dim, hidden_dim // 2, dtype=dtype, device=device, operations=operations)
self.experts = nn.ModuleList([FeedForwardSwiGLU(dim, hidden_dim, dtype=dtype, device=device, operations=operations) for i in range(num_routed_experts)])
self.gate = MoEGate(
embed_dim = dim,
num_routed_experts = num_routed_experts,
num_activated_experts = num_activated_experts,
dtype=dtype, device=device, operations=operations
)
self.num_activated_experts = num_activated_experts
def forward(self, x):
wtype = x.dtype
identity = x
orig_shape = x.shape
topk_idx, topk_weight, aux_loss = self.gate(x)
x = x.view(-1, x.shape[-1])
flat_topk_idx = topk_idx.view(-1)
if True: # self.training: # TODO: check which branch performs faster
x = x.repeat_interleave(self.num_activated_experts, dim=0)
y = torch.empty_like(x, dtype=wtype)
for i, expert in enumerate(self.experts):
y[flat_topk_idx == i] = expert(x[flat_topk_idx == i]).to(dtype=wtype)
y = (y.view(*topk_weight.shape, -1) * topk_weight.unsqueeze(-1)).sum(dim=1)
y = y.view(*orig_shape).to(dtype=wtype)
#y = AddAuxiliaryLoss.apply(y, aux_loss)
else:
y = self.moe_infer(x, flat_topk_idx, topk_weight.view(-1, 1)).view(*orig_shape)
y = y + self.shared_experts(identity)
return y
@torch.no_grad()
def moe_infer(self, x, flat_expert_indices, flat_expert_weights):
expert_cache = torch.zeros_like(x)
idxs = flat_expert_indices.argsort()
tokens_per_expert = flat_expert_indices.bincount().cpu().numpy().cumsum(0)
token_idxs = idxs // self.num_activated_experts
for i, end_idx in enumerate(tokens_per_expert):
start_idx = 0 if i == 0 else tokens_per_expert[i-1]
if start_idx == end_idx:
continue
expert = self.experts[i]
exp_token_idx = token_idxs[start_idx:end_idx]
expert_tokens = x[exp_token_idx]
expert_out = expert(expert_tokens)
expert_out.mul_(flat_expert_weights[idxs[start_idx:end_idx]])
# for fp16 and other dtype
expert_cache = expert_cache.to(expert_out.dtype)
expert_cache.scatter_reduce_(0, exp_token_idx.view(-1, 1).repeat(1, x.shape[-1]), expert_out, reduce='sum')
return expert_cache
class TextProjection(nn.Module):
def __init__(self, in_features, hidden_size, dtype=None, device=None, operations=None):
super().__init__()
self.linear = operations.Linear(in_features=in_features, out_features=hidden_size, bias=False, dtype=dtype, device=device)
def forward(self, caption):
hidden_states = self.linear(caption)
return hidden_states
class BlockType:
TransformerBlock = 1
SingleTransformerBlock = 2
class HiDreamImageSingleTransformerBlock(nn.Module):
def __init__(
self,
dim: int,
num_attention_heads: int,
attention_head_dim: int,
num_routed_experts: int = 4,
num_activated_experts: int = 2,
dtype=None, device=None, operations=None
):
super().__init__()
self.num_attention_heads = num_attention_heads
self.adaLN_modulation = nn.Sequential(
nn.SiLU(),
operations.Linear(dim, 6 * dim, bias=True, dtype=dtype, device=device)
)
# 1. Attention
self.norm1_i = operations.LayerNorm(dim, eps = 1e-06, elementwise_affine = False, dtype=dtype, device=device)
self.attn1 = HiDreamAttention(
query_dim=dim,
heads=num_attention_heads,
dim_head=attention_head_dim,
processor = HiDreamAttnProcessor_flashattn(),
single = True,
dtype=dtype, device=device, operations=operations
)
# 3. Feed-forward
self.norm3_i = operations.LayerNorm(dim, eps = 1e-06, elementwise_affine = False, dtype=dtype, device=device)
if num_routed_experts > 0:
self.ff_i = MOEFeedForwardSwiGLU(
dim = dim,
hidden_dim = 4 * dim,
num_routed_experts = num_routed_experts,
num_activated_experts = num_activated_experts,
dtype=dtype, device=device, operations=operations
)
else:
self.ff_i = FeedForwardSwiGLU(dim = dim, hidden_dim = 4 * dim, dtype=dtype, device=device, operations=operations)
def forward(
self,
image_tokens: torch.FloatTensor,
image_tokens_masks: Optional[torch.FloatTensor] = None,
text_tokens: Optional[torch.FloatTensor] = None,
adaln_input: Optional[torch.FloatTensor] = None,
rope: torch.FloatTensor = None,
) -> torch.FloatTensor:
wtype = image_tokens.dtype
shift_msa_i, scale_msa_i, gate_msa_i, shift_mlp_i, scale_mlp_i, gate_mlp_i = \
self.adaLN_modulation(adaln_input)[:,None].chunk(6, dim=-1)
# 1. MM-Attention
norm_image_tokens = self.norm1_i(image_tokens).to(dtype=wtype)
norm_image_tokens = norm_image_tokens * (1 + scale_msa_i) + shift_msa_i
attn_output_i = self.attn1(
norm_image_tokens,
image_tokens_masks,
rope = rope,
)
image_tokens = gate_msa_i * attn_output_i + image_tokens
# 2. Feed-forward
norm_image_tokens = self.norm3_i(image_tokens).to(dtype=wtype)
norm_image_tokens = norm_image_tokens * (1 + scale_mlp_i) + shift_mlp_i
ff_output_i = gate_mlp_i * self.ff_i(norm_image_tokens.to(dtype=wtype))
image_tokens = ff_output_i + image_tokens
return image_tokens
class HiDreamImageTransformerBlock(nn.Module):
def __init__(
self,
dim: int,
num_attention_heads: int,
attention_head_dim: int,
num_routed_experts: int = 4,
num_activated_experts: int = 2,
dtype=None, device=None, operations=None
):
super().__init__()
self.num_attention_heads = num_attention_heads
self.adaLN_modulation = nn.Sequential(
nn.SiLU(),
operations.Linear(dim, 12 * dim, bias=True, dtype=dtype, device=device)
)
# nn.init.zeros_(self.adaLN_modulation[1].weight)
# nn.init.zeros_(self.adaLN_modulation[1].bias)
# 1. Attention
self.norm1_i = operations.LayerNorm(dim, eps = 1e-06, elementwise_affine = False, dtype=dtype, device=device)
self.norm1_t = operations.LayerNorm(dim, eps = 1e-06, elementwise_affine = False, dtype=dtype, device=device)
self.attn1 = HiDreamAttention(
query_dim=dim,
heads=num_attention_heads,
dim_head=attention_head_dim,
processor = HiDreamAttnProcessor_flashattn(),
single = False,
dtype=dtype, device=device, operations=operations
)
# 3. Feed-forward
self.norm3_i = operations.LayerNorm(dim, eps = 1e-06, elementwise_affine = False, dtype=dtype, device=device)
if num_routed_experts > 0:
self.ff_i = MOEFeedForwardSwiGLU(
dim = dim,
hidden_dim = 4 * dim,
num_routed_experts = num_routed_experts,
num_activated_experts = num_activated_experts,
dtype=dtype, device=device, operations=operations
)
else:
self.ff_i = FeedForwardSwiGLU(dim = dim, hidden_dim = 4 * dim, dtype=dtype, device=device, operations=operations)
self.norm3_t = operations.LayerNorm(dim, eps = 1e-06, elementwise_affine = False)
self.ff_t = FeedForwardSwiGLU(dim = dim, hidden_dim = 4 * dim, dtype=dtype, device=device, operations=operations)
def forward(
self,
image_tokens: torch.FloatTensor,
image_tokens_masks: Optional[torch.FloatTensor] = None,
text_tokens: Optional[torch.FloatTensor] = None,
adaln_input: Optional[torch.FloatTensor] = None,
rope: torch.FloatTensor = None,
) -> torch.FloatTensor:
wtype = image_tokens.dtype
shift_msa_i, scale_msa_i, gate_msa_i, shift_mlp_i, scale_mlp_i, gate_mlp_i, \
shift_msa_t, scale_msa_t, gate_msa_t, shift_mlp_t, scale_mlp_t, gate_mlp_t = \
self.adaLN_modulation(adaln_input)[:,None].chunk(12, dim=-1)
# 1. MM-Attention
norm_image_tokens = self.norm1_i(image_tokens).to(dtype=wtype)
norm_image_tokens = norm_image_tokens * (1 + scale_msa_i) + shift_msa_i
norm_text_tokens = self.norm1_t(text_tokens).to(dtype=wtype)
norm_text_tokens = norm_text_tokens * (1 + scale_msa_t) + shift_msa_t
attn_output_i, attn_output_t = self.attn1(
norm_image_tokens,
image_tokens_masks,
norm_text_tokens,
rope = rope,
)
image_tokens = gate_msa_i * attn_output_i + image_tokens
text_tokens = gate_msa_t * attn_output_t + text_tokens
# 2. Feed-forward
norm_image_tokens = self.norm3_i(image_tokens).to(dtype=wtype)
norm_image_tokens = norm_image_tokens * (1 + scale_mlp_i) + shift_mlp_i
norm_text_tokens = self.norm3_t(text_tokens).to(dtype=wtype)
norm_text_tokens = norm_text_tokens * (1 + scale_mlp_t) + shift_mlp_t
ff_output_i = gate_mlp_i * self.ff_i(norm_image_tokens)
ff_output_t = gate_mlp_t * self.ff_t(norm_text_tokens)
image_tokens = ff_output_i + image_tokens
text_tokens = ff_output_t + text_tokens
return image_tokens, text_tokens
class HiDreamImageBlock(nn.Module):
def __init__(
self,
dim: int,
num_attention_heads: int,
attention_head_dim: int,
num_routed_experts: int = 4,
num_activated_experts: int = 2,
block_type: BlockType = BlockType.TransformerBlock,
dtype=None, device=None, operations=None
):
super().__init__()
block_classes = {
BlockType.TransformerBlock: HiDreamImageTransformerBlock,
BlockType.SingleTransformerBlock: HiDreamImageSingleTransformerBlock,
}
self.block = block_classes[block_type](
dim,
num_attention_heads,
attention_head_dim,
num_routed_experts,
num_activated_experts,
dtype=dtype, device=device, operations=operations
)
def forward(
self,
image_tokens: torch.FloatTensor,
image_tokens_masks: Optional[torch.FloatTensor] = None,
text_tokens: Optional[torch.FloatTensor] = None,
adaln_input: torch.FloatTensor = None,
rope: torch.FloatTensor = None,
) -> torch.FloatTensor:
return self.block(
image_tokens,
image_tokens_masks,
text_tokens,
adaln_input,
rope,
)
class HiDreamImageTransformer2DModel(nn.Module):
def __init__(
self,
patch_size: Optional[int] = None,
in_channels: int = 64,
out_channels: Optional[int] = None,
num_layers: int = 16,
num_single_layers: int = 32,
attention_head_dim: int = 128,
num_attention_heads: int = 20,
caption_channels: List[int] = None,
text_emb_dim: int = 2048,
num_routed_experts: int = 4,
num_activated_experts: int = 2,
axes_dims_rope: Tuple[int, int] = (32, 32),
max_resolution: Tuple[int, int] = (128, 128),
llama_layers: List[int] = None,
image_model=None,
dtype=None, device=None, operations=None
):
self.patch_size = patch_size
self.num_attention_heads = num_attention_heads
self.attention_head_dim = attention_head_dim
self.num_layers = num_layers
self.num_single_layers = num_single_layers
self.gradient_checkpointing = False
super().__init__()
self.dtype = dtype
self.out_channels = out_channels or in_channels
self.inner_dim = self.num_attention_heads * self.attention_head_dim
self.llama_layers = llama_layers
self.t_embedder = TimestepEmbed(self.inner_dim, dtype=dtype, device=device, operations=operations)
self.p_embedder = PooledEmbed(text_emb_dim, self.inner_dim, dtype=dtype, device=device, operations=operations)
self.x_embedder = PatchEmbed(
patch_size = patch_size,
in_channels = in_channels,
out_channels = self.inner_dim,
dtype=dtype, device=device, operations=operations
)
self.pe_embedder = EmbedND(theta=10000, axes_dim=axes_dims_rope)
self.double_stream_blocks = nn.ModuleList(
[
HiDreamImageBlock(
dim = self.inner_dim,
num_attention_heads = self.num_attention_heads,
attention_head_dim = self.attention_head_dim,
num_routed_experts = num_routed_experts,
num_activated_experts = num_activated_experts,
block_type = BlockType.TransformerBlock,
dtype=dtype, device=device, operations=operations
)
for i in range(self.num_layers)
]
)
self.single_stream_blocks = nn.ModuleList(
[
HiDreamImageBlock(
dim = self.inner_dim,
num_attention_heads = self.num_attention_heads,
attention_head_dim = self.attention_head_dim,
num_routed_experts = num_routed_experts,
num_activated_experts = num_activated_experts,
block_type = BlockType.SingleTransformerBlock,
dtype=dtype, device=device, operations=operations
)
for i in range(self.num_single_layers)
]
)
self.final_layer = LastLayer(self.inner_dim, patch_size, self.out_channels, dtype=dtype, device=device, operations=operations)
caption_channels = [caption_channels[1], ] * (num_layers + num_single_layers) + [caption_channels[0], ]
caption_projection = []
for caption_channel in caption_channels:
caption_projection.append(TextProjection(in_features=caption_channel, hidden_size=self.inner_dim, dtype=dtype, device=device, operations=operations))
self.caption_projection = nn.ModuleList(caption_projection)
self.max_seq = max_resolution[0] * max_resolution[1] // (patch_size * patch_size)
def expand_timesteps(self, timesteps, batch_size, device):
if not torch.is_tensor(timesteps):
is_mps = device.type == "mps"
if isinstance(timesteps, float):
dtype = torch.float32 if is_mps else torch.float64
else:
dtype = torch.int32 if is_mps else torch.int64
timesteps = torch.tensor([timesteps], dtype=dtype, device=device)
elif len(timesteps.shape) == 0:
timesteps = timesteps[None].to(device)
# broadcast to batch dimension in a way that's compatible with ONNX/Core ML
timesteps = timesteps.expand(batch_size)
return timesteps
def unpatchify(self, x: torch.Tensor, img_sizes: List[Tuple[int, int]]) -> List[torch.Tensor]:
x_arr = []
for i, img_size in enumerate(img_sizes):
pH, pW = img_size
x_arr.append(
einops.rearrange(x[i, :pH*pW].reshape(1, pH, pW, -1), 'B H W (p1 p2 C) -> B C (H p1) (W p2)',
p1=self.patch_size, p2=self.patch_size)
)
x = torch.cat(x_arr, dim=0)
return x
def patchify(self, x, max_seq, img_sizes=None):
pz2 = self.patch_size * self.patch_size
if isinstance(x, torch.Tensor):
B = x.shape[0]
device = x.device
dtype = x.dtype
else:
B = len(x)
device = x[0].device
dtype = x[0].dtype
x_masks = torch.zeros((B, max_seq), dtype=dtype, device=device)
if img_sizes is not None:
for i, img_size in enumerate(img_sizes):
x_masks[i, 0:img_size[0] * img_size[1]] = 1
x = einops.rearrange(x, 'B C S p -> B S (p C)', p=pz2)
elif isinstance(x, torch.Tensor):
pH, pW = x.shape[-2] // self.patch_size, x.shape[-1] // self.patch_size
x = einops.rearrange(x, 'B C (H p1) (W p2) -> B (H W) (p1 p2 C)', p1=self.patch_size, p2=self.patch_size)
img_sizes = [[pH, pW]] * B
x_masks = None
else:
raise NotImplementedError
return x, x_masks, img_sizes
def forward(
self,
x: torch.Tensor,
t: torch.Tensor,
y: Optional[torch.Tensor] = None,
context: Optional[torch.Tensor] = None,
encoder_hidden_states_llama3=None,
control = None,
transformer_options = {},
) -> torch.Tensor:
bs, c, h, w = x.shape
hidden_states = comfy.ldm.common_dit.pad_to_patch_size(x, (self.patch_size, self.patch_size))
timesteps = t
pooled_embeds = y
T5_encoder_hidden_states = context
img_sizes = None
# spatial forward
batch_size = hidden_states.shape[0]
hidden_states_type = hidden_states.dtype
# 0. time
timesteps = self.expand_timesteps(timesteps, batch_size, hidden_states.device)
timesteps = self.t_embedder(timesteps, hidden_states_type)
p_embedder = self.p_embedder(pooled_embeds)
adaln_input = timesteps + p_embedder
hidden_states, image_tokens_masks, img_sizes = self.patchify(hidden_states, self.max_seq, img_sizes)
if image_tokens_masks is None:
pH, pW = img_sizes[0]
img_ids = torch.zeros(pH, pW, 3, device=hidden_states.device)
img_ids[..., 1] = img_ids[..., 1] + torch.arange(pH, device=hidden_states.device)[:, None]
img_ids[..., 2] = img_ids[..., 2] + torch.arange(pW, device=hidden_states.device)[None, :]
img_ids = repeat(img_ids, "h w c -> b (h w) c", b=batch_size)
hidden_states = self.x_embedder(hidden_states)
# T5_encoder_hidden_states = encoder_hidden_states[0]
encoder_hidden_states = encoder_hidden_states_llama3.movedim(1, 0)
encoder_hidden_states = [encoder_hidden_states[k] for k in self.llama_layers]
if self.caption_projection is not None:
new_encoder_hidden_states = []
for i, enc_hidden_state in enumerate(encoder_hidden_states):
enc_hidden_state = self.caption_projection[i](enc_hidden_state)
enc_hidden_state = enc_hidden_state.view(batch_size, -1, hidden_states.shape[-1])
new_encoder_hidden_states.append(enc_hidden_state)
encoder_hidden_states = new_encoder_hidden_states
T5_encoder_hidden_states = self.caption_projection[-1](T5_encoder_hidden_states)
T5_encoder_hidden_states = T5_encoder_hidden_states.view(batch_size, -1, hidden_states.shape[-1])
encoder_hidden_states.append(T5_encoder_hidden_states)
txt_ids = torch.zeros(
batch_size,
encoder_hidden_states[-1].shape[1] + encoder_hidden_states[-2].shape[1] + encoder_hidden_states[0].shape[1],
3,
device=img_ids.device, dtype=img_ids.dtype
)
ids = torch.cat((img_ids, txt_ids), dim=1)
rope = self.pe_embedder(ids)
# 2. Blocks
block_id = 0
initial_encoder_hidden_states = torch.cat([encoder_hidden_states[-1], encoder_hidden_states[-2]], dim=1)
initial_encoder_hidden_states_seq_len = initial_encoder_hidden_states.shape[1]
for bid, block in enumerate(self.double_stream_blocks):
cur_llama31_encoder_hidden_states = encoder_hidden_states[block_id]
cur_encoder_hidden_states = torch.cat([initial_encoder_hidden_states, cur_llama31_encoder_hidden_states], dim=1)
hidden_states, initial_encoder_hidden_states = block(
image_tokens = hidden_states,
image_tokens_masks = image_tokens_masks,
text_tokens = cur_encoder_hidden_states,
adaln_input = adaln_input,
rope = rope,
)
initial_encoder_hidden_states = initial_encoder_hidden_states[:, :initial_encoder_hidden_states_seq_len]
block_id += 1
image_tokens_seq_len = hidden_states.shape[1]
hidden_states = torch.cat([hidden_states, initial_encoder_hidden_states], dim=1)
hidden_states_seq_len = hidden_states.shape[1]
if image_tokens_masks is not None:
encoder_attention_mask_ones = torch.ones(
(batch_size, initial_encoder_hidden_states.shape[1] + cur_llama31_encoder_hidden_states.shape[1]),
device=image_tokens_masks.device, dtype=image_tokens_masks.dtype
)
image_tokens_masks = torch.cat([image_tokens_masks, encoder_attention_mask_ones], dim=1)
for bid, block in enumerate(self.single_stream_blocks):
cur_llama31_encoder_hidden_states = encoder_hidden_states[block_id]
hidden_states = torch.cat([hidden_states, cur_llama31_encoder_hidden_states], dim=1)
hidden_states = block(
image_tokens=hidden_states,
image_tokens_masks=image_tokens_masks,
text_tokens=None,
adaln_input=adaln_input,
rope=rope,
)
hidden_states = hidden_states[:, :hidden_states_seq_len]
block_id += 1
hidden_states = hidden_states[:, :image_tokens_seq_len, ...]
output = self.final_layer(hidden_states, adaln_input)
output = self.unpatchify(output, img_sizes)
return -output[:, :, :h, :w]

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@ -1,135 +0,0 @@
import torch
from torch import nn
from comfy.ldm.flux.layers import (
DoubleStreamBlock,
LastLayer,
MLPEmbedder,
SingleStreamBlock,
timestep_embedding,
)
class Hunyuan3Dv2(nn.Module):
def __init__(
self,
in_channels=64,
context_in_dim=1536,
hidden_size=1024,
mlp_ratio=4.0,
num_heads=16,
depth=16,
depth_single_blocks=32,
qkv_bias=True,
guidance_embed=False,
image_model=None,
dtype=None,
device=None,
operations=None
):
super().__init__()
self.dtype = dtype
if hidden_size % num_heads != 0:
raise ValueError(
f"Hidden size {hidden_size} must be divisible by num_heads {num_heads}"
)
self.max_period = 1000 # While reimplementing the model I noticed that they messed up. This 1000 value was meant to be the time_factor but they set the max_period instead
self.latent_in = operations.Linear(in_channels, hidden_size, bias=True, dtype=dtype, device=device)
self.time_in = MLPEmbedder(in_dim=256, hidden_dim=hidden_size, dtype=dtype, device=device, operations=operations)
self.guidance_in = (
MLPEmbedder(in_dim=256, hidden_dim=hidden_size, dtype=dtype, device=device, operations=operations) if guidance_embed else None
)
self.cond_in = operations.Linear(context_in_dim, hidden_size, dtype=dtype, device=device)
self.double_blocks = nn.ModuleList(
[
DoubleStreamBlock(
hidden_size,
num_heads,
mlp_ratio=mlp_ratio,
qkv_bias=qkv_bias,
dtype=dtype, device=device, operations=operations
)
for _ in range(depth)
]
)
self.single_blocks = nn.ModuleList(
[
SingleStreamBlock(
hidden_size,
num_heads,
mlp_ratio=mlp_ratio,
dtype=dtype, device=device, operations=operations
)
for _ in range(depth_single_blocks)
]
)
self.final_layer = LastLayer(hidden_size, 1, in_channels, dtype=dtype, device=device, operations=operations)
def forward(self, x, timestep, context, guidance=None, transformer_options={}, **kwargs):
x = x.movedim(-1, -2)
timestep = 1.0 - timestep
txt = context
img = self.latent_in(x)
vec = self.time_in(timestep_embedding(timestep, 256, self.max_period).to(dtype=img.dtype))
if self.guidance_in is not None:
if guidance is not None:
vec = vec + self.guidance_in(timestep_embedding(guidance, 256, self.max_period).to(img.dtype))
txt = self.cond_in(txt)
pe = None
attn_mask = None
patches_replace = transformer_options.get("patches_replace", {})
blocks_replace = patches_replace.get("dit", {})
for i, block in enumerate(self.double_blocks):
if ("double_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"], out["txt"] = block(img=args["img"],
txt=args["txt"],
vec=args["vec"],
pe=args["pe"],
attn_mask=args.get("attn_mask"))
return out
out = blocks_replace[("double_block", i)]({"img": img,
"txt": txt,
"vec": vec,
"pe": pe,
"attn_mask": attn_mask},
{"original_block": block_wrap})
txt = out["txt"]
img = out["img"]
else:
img, txt = block(img=img,
txt=txt,
vec=vec,
pe=pe,
attn_mask=attn_mask)
img = torch.cat((txt, img), 1)
for i, block in enumerate(self.single_blocks):
if ("single_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"] = block(args["img"],
vec=args["vec"],
pe=args["pe"],
attn_mask=args.get("attn_mask"))
return out
out = blocks_replace[("single_block", i)]({"img": img,
"vec": vec,
"pe": pe,
"attn_mask": attn_mask},
{"original_block": block_wrap})
img = out["img"]
else:
img = block(img, vec=vec, pe=pe, attn_mask=attn_mask)
img = img[:, txt.shape[1]:, ...]
img = self.final_layer(img, vec)
return img.movedim(-2, -1) * (-1.0)

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@ -1,587 +0,0 @@
# Original: https://github.com/Tencent/Hunyuan3D-2/blob/main/hy3dgen/shapegen/models/autoencoders/model.py
# Since the header on their VAE source file was a bit confusing we asked for permission to use this code from tencent under the GPL license used in ComfyUI.
import torch
import torch.nn as nn
import torch.nn.functional as F
from typing import Union, Tuple, List, Callable, Optional
import numpy as np
from einops import repeat, rearrange
from tqdm import tqdm
import logging
import comfy.ops
ops = comfy.ops.disable_weight_init
def generate_dense_grid_points(
bbox_min: np.ndarray,
bbox_max: np.ndarray,
octree_resolution: int,
indexing: str = "ij",
):
length = bbox_max - bbox_min
num_cells = octree_resolution
x = np.linspace(bbox_min[0], bbox_max[0], int(num_cells) + 1, dtype=np.float32)
y = np.linspace(bbox_min[1], bbox_max[1], int(num_cells) + 1, dtype=np.float32)
z = np.linspace(bbox_min[2], bbox_max[2], int(num_cells) + 1, dtype=np.float32)
[xs, ys, zs] = np.meshgrid(x, y, z, indexing=indexing)
xyz = np.stack((xs, ys, zs), axis=-1)
grid_size = [int(num_cells) + 1, int(num_cells) + 1, int(num_cells) + 1]
return xyz, grid_size, length
class VanillaVolumeDecoder:
@torch.no_grad()
def __call__(
self,
latents: torch.FloatTensor,
geo_decoder: Callable,
bounds: Union[Tuple[float], List[float], float] = 1.01,
num_chunks: int = 10000,
octree_resolution: int = None,
enable_pbar: bool = True,
**kwargs,
):
device = latents.device
dtype = latents.dtype
batch_size = latents.shape[0]
# 1. generate query points
if isinstance(bounds, float):
bounds = [-bounds, -bounds, -bounds, bounds, bounds, bounds]
bbox_min, bbox_max = np.array(bounds[0:3]), np.array(bounds[3:6])
xyz_samples, grid_size, length = generate_dense_grid_points(
bbox_min=bbox_min,
bbox_max=bbox_max,
octree_resolution=octree_resolution,
indexing="ij"
)
xyz_samples = torch.from_numpy(xyz_samples).to(device, dtype=dtype).contiguous().reshape(-1, 3)
# 2. latents to 3d volume
batch_logits = []
for start in tqdm(range(0, xyz_samples.shape[0], num_chunks), desc="Volume Decoding",
disable=not enable_pbar):
chunk_queries = xyz_samples[start: start + num_chunks, :]
chunk_queries = repeat(chunk_queries, "p c -> b p c", b=batch_size)
logits = geo_decoder(queries=chunk_queries, latents=latents)
batch_logits.append(logits)
grid_logits = torch.cat(batch_logits, dim=1)
grid_logits = grid_logits.view((batch_size, *grid_size)).float()
return grid_logits
class FourierEmbedder(nn.Module):
"""The sin/cosine positional embedding. Given an input tensor `x` of shape [n_batch, ..., c_dim], it converts
each feature dimension of `x[..., i]` into:
[
sin(x[..., i]),
sin(f_1*x[..., i]),
sin(f_2*x[..., i]),
...
sin(f_N * x[..., i]),
cos(x[..., i]),
cos(f_1*x[..., i]),
cos(f_2*x[..., i]),
...
cos(f_N * x[..., i]),
x[..., i] # only present if include_input is True.
], here f_i is the frequency.
Denote the space is [0 / num_freqs, 1 / num_freqs, 2 / num_freqs, 3 / num_freqs, ..., (num_freqs - 1) / num_freqs].
If logspace is True, then the frequency f_i is [2^(0 / num_freqs), ..., 2^(i / num_freqs), ...];
Otherwise, the frequencies are linearly spaced between [1.0, 2^(num_freqs - 1)].
Args:
num_freqs (int): the number of frequencies, default is 6;
logspace (bool): If logspace is True, then the frequency f_i is [..., 2^(i / num_freqs), ...],
otherwise, the frequencies are linearly spaced between [1.0, 2^(num_freqs - 1)];
input_dim (int): the input dimension, default is 3;
include_input (bool): include the input tensor or not, default is True.
Attributes:
frequencies (torch.Tensor): If logspace is True, then the frequency f_i is [..., 2^(i / num_freqs), ...],
otherwise, the frequencies are linearly spaced between [1.0, 2^(num_freqs - 1);
out_dim (int): the embedding size, if include_input is True, it is input_dim * (num_freqs * 2 + 1),
otherwise, it is input_dim * num_freqs * 2.
"""
def __init__(self,
num_freqs: int = 6,
logspace: bool = True,
input_dim: int = 3,
include_input: bool = True,
include_pi: bool = True) -> None:
"""The initialization"""
super().__init__()
if logspace:
frequencies = 2.0 ** torch.arange(
num_freqs,
dtype=torch.float32
)
else:
frequencies = torch.linspace(
1.0,
2.0 ** (num_freqs - 1),
num_freqs,
dtype=torch.float32
)
if include_pi:
frequencies *= torch.pi
self.register_buffer("frequencies", frequencies, persistent=False)
self.include_input = include_input
self.num_freqs = num_freqs
self.out_dim = self.get_dims(input_dim)
def get_dims(self, input_dim):
temp = 1 if self.include_input or self.num_freqs == 0 else 0
out_dim = input_dim * (self.num_freqs * 2 + temp)
return out_dim
def forward(self, x: torch.Tensor) -> torch.Tensor:
""" Forward process.
Args:
x: tensor of shape [..., dim]
Returns:
embedding: an embedding of `x` of shape [..., dim * (num_freqs * 2 + temp)]
where temp is 1 if include_input is True and 0 otherwise.
"""
if self.num_freqs > 0:
embed = (x[..., None].contiguous() * self.frequencies.to(device=x.device, dtype=x.dtype)).view(*x.shape[:-1], -1)
if self.include_input:
return torch.cat((x, embed.sin(), embed.cos()), dim=-1)
else:
return torch.cat((embed.sin(), embed.cos()), dim=-1)
else:
return x
class CrossAttentionProcessor:
def __call__(self, attn, q, k, v):
out = F.scaled_dot_product_attention(q, k, v)
return out
class DropPath(nn.Module):
"""Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
"""
def __init__(self, drop_prob: float = 0., scale_by_keep: bool = True):
super(DropPath, self).__init__()
self.drop_prob = drop_prob
self.scale_by_keep = scale_by_keep
def forward(self, x):
"""Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
This is the same as the DropConnect impl I created for EfficientNet, etc networks, however,
the original name is misleading as 'Drop Connect' is a different form of dropout in a separate paper...
See discussion: https://github.com/tensorflow/tpu/issues/494#issuecomment-532968956 ... I've opted for
changing the layer and argument names to 'drop path' rather than mix DropConnect as a layer name and use
'survival rate' as the argument.
"""
if self.drop_prob == 0. or not self.training:
return x
keep_prob = 1 - self.drop_prob
shape = (x.shape[0],) + (1,) * (x.ndim - 1) # work with diff dim tensors, not just 2D ConvNets
random_tensor = x.new_empty(shape).bernoulli_(keep_prob)
if keep_prob > 0.0 and self.scale_by_keep:
random_tensor.div_(keep_prob)
return x * random_tensor
def extra_repr(self):
return f'drop_prob={round(self.drop_prob, 3):0.3f}'
class MLP(nn.Module):
def __init__(
self, *,
width: int,
expand_ratio: int = 4,
output_width: int = None,
drop_path_rate: float = 0.0
):
super().__init__()
self.width = width
self.c_fc = ops.Linear(width, width * expand_ratio)
self.c_proj = ops.Linear(width * expand_ratio, output_width if output_width is not None else width)
self.gelu = nn.GELU()
self.drop_path = DropPath(drop_path_rate) if drop_path_rate > 0. else nn.Identity()
def forward(self, x):
return self.drop_path(self.c_proj(self.gelu(self.c_fc(x))))
class QKVMultiheadCrossAttention(nn.Module):
def __init__(
self,
*,
heads: int,
width=None,
qk_norm=False,
norm_layer=ops.LayerNorm
):
super().__init__()
self.heads = heads
self.q_norm = norm_layer(width // heads, elementwise_affine=True, eps=1e-6) if qk_norm else nn.Identity()
self.k_norm = norm_layer(width // heads, elementwise_affine=True, eps=1e-6) if qk_norm else nn.Identity()
self.attn_processor = CrossAttentionProcessor()
def forward(self, q, kv):
_, n_ctx, _ = q.shape
bs, n_data, width = kv.shape
attn_ch = width // self.heads // 2
q = q.view(bs, n_ctx, self.heads, -1)
kv = kv.view(bs, n_data, self.heads, -1)
k, v = torch.split(kv, attn_ch, dim=-1)
q = self.q_norm(q)
k = self.k_norm(k)
q, k, v = map(lambda t: rearrange(t, 'b n h d -> b h n d', h=self.heads), (q, k, v))
out = self.attn_processor(self, q, k, v)
out = out.transpose(1, 2).reshape(bs, n_ctx, -1)
return out
class MultiheadCrossAttention(nn.Module):
def __init__(
self,
*,
width: int,
heads: int,
qkv_bias: bool = True,
data_width: Optional[int] = None,
norm_layer=ops.LayerNorm,
qk_norm: bool = False,
kv_cache: bool = False,
):
super().__init__()
self.width = width
self.heads = heads
self.data_width = width if data_width is None else data_width
self.c_q = ops.Linear(width, width, bias=qkv_bias)
self.c_kv = ops.Linear(self.data_width, width * 2, bias=qkv_bias)
self.c_proj = ops.Linear(width, width)
self.attention = QKVMultiheadCrossAttention(
heads=heads,
width=width,
norm_layer=norm_layer,
qk_norm=qk_norm
)
self.kv_cache = kv_cache
self.data = None
def forward(self, x, data):
x = self.c_q(x)
if self.kv_cache:
if self.data is None:
self.data = self.c_kv(data)
logging.info('Save kv cache,this should be called only once for one mesh')
data = self.data
else:
data = self.c_kv(data)
x = self.attention(x, data)
x = self.c_proj(x)
return x
class ResidualCrossAttentionBlock(nn.Module):
def __init__(
self,
*,
width: int,
heads: int,
mlp_expand_ratio: int = 4,
data_width: Optional[int] = None,
qkv_bias: bool = True,
norm_layer=ops.LayerNorm,
qk_norm: bool = False
):
super().__init__()
if data_width is None:
data_width = width
self.attn = MultiheadCrossAttention(
width=width,
heads=heads,
data_width=data_width,
qkv_bias=qkv_bias,
norm_layer=norm_layer,
qk_norm=qk_norm
)
self.ln_1 = norm_layer(width, elementwise_affine=True, eps=1e-6)
self.ln_2 = norm_layer(data_width, elementwise_affine=True, eps=1e-6)
self.ln_3 = norm_layer(width, elementwise_affine=True, eps=1e-6)
self.mlp = MLP(width=width, expand_ratio=mlp_expand_ratio)
def forward(self, x: torch.Tensor, data: torch.Tensor):
x = x + self.attn(self.ln_1(x), self.ln_2(data))
x = x + self.mlp(self.ln_3(x))
return x
class QKVMultiheadAttention(nn.Module):
def __init__(
self,
*,
heads: int,
width=None,
qk_norm=False,
norm_layer=ops.LayerNorm
):
super().__init__()
self.heads = heads
self.q_norm = norm_layer(width // heads, elementwise_affine=True, eps=1e-6) if qk_norm else nn.Identity()
self.k_norm = norm_layer(width // heads, elementwise_affine=True, eps=1e-6) if qk_norm else nn.Identity()
def forward(self, qkv):
bs, n_ctx, width = qkv.shape
attn_ch = width // self.heads // 3
qkv = qkv.view(bs, n_ctx, self.heads, -1)
q, k, v = torch.split(qkv, attn_ch, dim=-1)
q = self.q_norm(q)
k = self.k_norm(k)
q, k, v = map(lambda t: rearrange(t, 'b n h d -> b h n d', h=self.heads), (q, k, v))
out = F.scaled_dot_product_attention(q, k, v).transpose(1, 2).reshape(bs, n_ctx, -1)
return out
class MultiheadAttention(nn.Module):
def __init__(
self,
*,
width: int,
heads: int,
qkv_bias: bool,
norm_layer=ops.LayerNorm,
qk_norm: bool = False,
drop_path_rate: float = 0.0
):
super().__init__()
self.width = width
self.heads = heads
self.c_qkv = ops.Linear(width, width * 3, bias=qkv_bias)
self.c_proj = ops.Linear(width, width)
self.attention = QKVMultiheadAttention(
heads=heads,
width=width,
norm_layer=norm_layer,
qk_norm=qk_norm
)
self.drop_path = DropPath(drop_path_rate) if drop_path_rate > 0. else nn.Identity()
def forward(self, x):
x = self.c_qkv(x)
x = self.attention(x)
x = self.drop_path(self.c_proj(x))
return x
class ResidualAttentionBlock(nn.Module):
def __init__(
self,
*,
width: int,
heads: int,
qkv_bias: bool = True,
norm_layer=ops.LayerNorm,
qk_norm: bool = False,
drop_path_rate: float = 0.0,
):
super().__init__()
self.attn = MultiheadAttention(
width=width,
heads=heads,
qkv_bias=qkv_bias,
norm_layer=norm_layer,
qk_norm=qk_norm,
drop_path_rate=drop_path_rate
)
self.ln_1 = norm_layer(width, elementwise_affine=True, eps=1e-6)
self.mlp = MLP(width=width, drop_path_rate=drop_path_rate)
self.ln_2 = norm_layer(width, elementwise_affine=True, eps=1e-6)
def forward(self, x: torch.Tensor):
x = x + self.attn(self.ln_1(x))
x = x + self.mlp(self.ln_2(x))
return x
class Transformer(nn.Module):
def __init__(
self,
*,
width: int,
layers: int,
heads: int,
qkv_bias: bool = True,
norm_layer=ops.LayerNorm,
qk_norm: bool = False,
drop_path_rate: float = 0.0
):
super().__init__()
self.width = width
self.layers = layers
self.resblocks = nn.ModuleList(
[
ResidualAttentionBlock(
width=width,
heads=heads,
qkv_bias=qkv_bias,
norm_layer=norm_layer,
qk_norm=qk_norm,
drop_path_rate=drop_path_rate
)
for _ in range(layers)
]
)
def forward(self, x: torch.Tensor):
for block in self.resblocks:
x = block(x)
return x
class CrossAttentionDecoder(nn.Module):
def __init__(
self,
*,
out_channels: int,
fourier_embedder: FourierEmbedder,
width: int,
heads: int,
mlp_expand_ratio: int = 4,
downsample_ratio: int = 1,
enable_ln_post: bool = True,
qkv_bias: bool = True,
qk_norm: bool = False,
label_type: str = "binary"
):
super().__init__()
self.enable_ln_post = enable_ln_post
self.fourier_embedder = fourier_embedder
self.downsample_ratio = downsample_ratio
self.query_proj = ops.Linear(self.fourier_embedder.out_dim, width)
if self.downsample_ratio != 1:
self.latents_proj = ops.Linear(width * downsample_ratio, width)
if self.enable_ln_post == False:
qk_norm = False
self.cross_attn_decoder = ResidualCrossAttentionBlock(
width=width,
mlp_expand_ratio=mlp_expand_ratio,
heads=heads,
qkv_bias=qkv_bias,
qk_norm=qk_norm
)
if self.enable_ln_post:
self.ln_post = ops.LayerNorm(width)
self.output_proj = ops.Linear(width, out_channels)
self.label_type = label_type
self.count = 0
def forward(self, queries=None, query_embeddings=None, latents=None):
if query_embeddings is None:
query_embeddings = self.query_proj(self.fourier_embedder(queries).to(latents.dtype))
self.count += query_embeddings.shape[1]
if self.downsample_ratio != 1:
latents = self.latents_proj(latents)
x = self.cross_attn_decoder(query_embeddings, latents)
if self.enable_ln_post:
x = self.ln_post(x)
occ = self.output_proj(x)
return occ
class ShapeVAE(nn.Module):
def __init__(
self,
*,
embed_dim: int,
width: int,
heads: int,
num_decoder_layers: int,
geo_decoder_downsample_ratio: int = 1,
geo_decoder_mlp_expand_ratio: int = 4,
geo_decoder_ln_post: bool = True,
num_freqs: int = 8,
include_pi: bool = True,
qkv_bias: bool = True,
qk_norm: bool = False,
label_type: str = "binary",
drop_path_rate: float = 0.0,
scale_factor: float = 1.0,
):
super().__init__()
self.geo_decoder_ln_post = geo_decoder_ln_post
self.fourier_embedder = FourierEmbedder(num_freqs=num_freqs, include_pi=include_pi)
self.post_kl = ops.Linear(embed_dim, width)
self.transformer = Transformer(
width=width,
layers=num_decoder_layers,
heads=heads,
qkv_bias=qkv_bias,
qk_norm=qk_norm,
drop_path_rate=drop_path_rate
)
self.geo_decoder = CrossAttentionDecoder(
fourier_embedder=self.fourier_embedder,
out_channels=1,
mlp_expand_ratio=geo_decoder_mlp_expand_ratio,
downsample_ratio=geo_decoder_downsample_ratio,
enable_ln_post=self.geo_decoder_ln_post,
width=width // geo_decoder_downsample_ratio,
heads=heads // geo_decoder_downsample_ratio,
qkv_bias=qkv_bias,
qk_norm=qk_norm,
label_type=label_type,
)
self.volume_decoder = VanillaVolumeDecoder()
self.scale_factor = scale_factor
def decode(self, latents, **kwargs):
latents = self.post_kl(latents.movedim(-2, -1))
latents = self.transformer(latents)
bounds = kwargs.get("bounds", 1.01)
num_chunks = kwargs.get("num_chunks", 8000)
octree_resolution = kwargs.get("octree_resolution", 256)
enable_pbar = kwargs.get("enable_pbar", True)
grid_logits = self.volume_decoder(latents, self.geo_decoder, bounds=bounds, num_chunks=num_chunks, octree_resolution=octree_resolution, enable_pbar=enable_pbar)
return grid_logits.movedim(-2, -1)
def encode(self, x):
return None

View File

@ -1,340 +0,0 @@
#Based on Flux code because of weird hunyuan video code license.
import torch
import comfy.ldm.flux.layers
import comfy.ldm.modules.diffusionmodules.mmdit
from comfy.ldm.modules.attention import optimized_attention
from dataclasses import dataclass
from einops import repeat
from torch import Tensor, nn
from comfy.ldm.flux.layers import (
DoubleStreamBlock,
EmbedND,
LastLayer,
MLPEmbedder,
SingleStreamBlock,
timestep_embedding
)
import comfy.ldm.common_dit
@dataclass
class HunyuanVideoParams:
in_channels: int
out_channels: int
vec_in_dim: int
context_in_dim: int
hidden_size: int
mlp_ratio: float
num_heads: int
depth: int
depth_single_blocks: int
axes_dim: list
theta: int
patch_size: list
qkv_bias: bool
guidance_embed: bool
class SelfAttentionRef(nn.Module):
def __init__(self, dim: int, qkv_bias: bool = False, dtype=None, device=None, operations=None):
super().__init__()
self.qkv = operations.Linear(dim, dim * 3, bias=qkv_bias, dtype=dtype, device=device)
self.proj = operations.Linear(dim, dim, dtype=dtype, device=device)
class TokenRefinerBlock(nn.Module):
def __init__(
self,
hidden_size,
heads,
dtype=None,
device=None,
operations=None
):
super().__init__()
self.heads = heads
mlp_hidden_dim = hidden_size * 4
self.adaLN_modulation = nn.Sequential(
nn.SiLU(),
operations.Linear(hidden_size, 2 * hidden_size, bias=True, dtype=dtype, device=device),
)
self.norm1 = operations.LayerNorm(hidden_size, elementwise_affine=True, eps=1e-6, dtype=dtype, device=device)
self.self_attn = SelfAttentionRef(hidden_size, True, dtype=dtype, device=device, operations=operations)
self.norm2 = operations.LayerNorm(hidden_size, elementwise_affine=True, eps=1e-6, dtype=dtype, device=device)
self.mlp = nn.Sequential(
operations.Linear(hidden_size, mlp_hidden_dim, bias=True, dtype=dtype, device=device),
nn.SiLU(),
operations.Linear(mlp_hidden_dim, hidden_size, bias=True, dtype=dtype, device=device),
)
def forward(self, x, c, mask):
mod1, mod2 = self.adaLN_modulation(c).chunk(2, dim=1)
norm_x = self.norm1(x)
qkv = self.self_attn.qkv(norm_x)
q, k, v = qkv.reshape(qkv.shape[0], qkv.shape[1], 3, self.heads, -1).permute(2, 0, 3, 1, 4)
attn = optimized_attention(q, k, v, self.heads, mask=mask, skip_reshape=True)
x = x + self.self_attn.proj(attn) * mod1.unsqueeze(1)
x = x + self.mlp(self.norm2(x)) * mod2.unsqueeze(1)
return x
class IndividualTokenRefiner(nn.Module):
def __init__(
self,
hidden_size,
heads,
num_blocks,
dtype=None,
device=None,
operations=None
):
super().__init__()
self.blocks = nn.ModuleList(
[
TokenRefinerBlock(
hidden_size=hidden_size,
heads=heads,
dtype=dtype,
device=device,
operations=operations
)
for _ in range(num_blocks)
]
)
def forward(self, x, c, mask):
m = None
if mask is not None:
m = mask.view(mask.shape[0], 1, 1, mask.shape[1]).repeat(1, 1, mask.shape[1], 1)
m = m + m.transpose(2, 3)
for block in self.blocks:
x = block(x, c, m)
return x
class TokenRefiner(nn.Module):
def __init__(
self,
text_dim,
hidden_size,
heads,
num_blocks,
dtype=None,
device=None,
operations=None
):
super().__init__()
self.input_embedder = operations.Linear(text_dim, hidden_size, bias=True, dtype=dtype, device=device)
self.t_embedder = MLPEmbedder(256, hidden_size, dtype=dtype, device=device, operations=operations)
self.c_embedder = MLPEmbedder(text_dim, hidden_size, dtype=dtype, device=device, operations=operations)
self.individual_token_refiner = IndividualTokenRefiner(hidden_size, heads, num_blocks, dtype=dtype, device=device, operations=operations)
def forward(
self,
x,
timesteps,
mask,
):
t = self.t_embedder(timestep_embedding(timesteps, 256, time_factor=1.0).to(x.dtype))
# m = mask.float().unsqueeze(-1)
# c = (x.float() * m).sum(dim=1) / m.sum(dim=1) #TODO: the following works when the x.shape is the same length as the tokens but might break otherwise
c = x.sum(dim=1) / x.shape[1]
c = t + self.c_embedder(c.to(x.dtype))
x = self.input_embedder(x)
x = self.individual_token_refiner(x, c, mask)
return x
class HunyuanVideo(nn.Module):
"""
Transformer model for flow matching on sequences.
"""
def __init__(self, image_model=None, final_layer=True, dtype=None, device=None, operations=None, **kwargs):
super().__init__()
self.dtype = dtype
params = HunyuanVideoParams(**kwargs)
self.params = params
self.patch_size = params.patch_size
self.in_channels = params.in_channels
self.out_channels = params.out_channels
if params.hidden_size % params.num_heads != 0:
raise ValueError(
f"Hidden size {params.hidden_size} must be divisible by num_heads {params.num_heads}"
)
pe_dim = params.hidden_size // params.num_heads
if sum(params.axes_dim) != pe_dim:
raise ValueError(f"Got {params.axes_dim} but expected positional dim {pe_dim}")
self.hidden_size = params.hidden_size
self.num_heads = params.num_heads
self.pe_embedder = EmbedND(dim=pe_dim, theta=params.theta, axes_dim=params.axes_dim)
self.img_in = comfy.ldm.modules.diffusionmodules.mmdit.PatchEmbed(None, self.patch_size, self.in_channels, self.hidden_size, conv3d=True, dtype=dtype, device=device, operations=operations)
self.time_in = MLPEmbedder(in_dim=256, hidden_dim=self.hidden_size, dtype=dtype, device=device, operations=operations)
self.vector_in = MLPEmbedder(params.vec_in_dim, self.hidden_size, dtype=dtype, device=device, operations=operations)
self.guidance_in = (
MLPEmbedder(in_dim=256, hidden_dim=self.hidden_size, dtype=dtype, device=device, operations=operations) if params.guidance_embed else nn.Identity()
)
self.txt_in = TokenRefiner(params.context_in_dim, self.hidden_size, self.num_heads, 2, dtype=dtype, device=device, operations=operations)
self.double_blocks = nn.ModuleList(
[
DoubleStreamBlock(
self.hidden_size,
self.num_heads,
mlp_ratio=params.mlp_ratio,
qkv_bias=params.qkv_bias,
flipped_img_txt=True,
dtype=dtype, device=device, operations=operations
)
for _ in range(params.depth)
]
)
self.single_blocks = nn.ModuleList(
[
SingleStreamBlock(self.hidden_size, self.num_heads, mlp_ratio=params.mlp_ratio, dtype=dtype, device=device, operations=operations)
for _ in range(params.depth_single_blocks)
]
)
if final_layer:
self.final_layer = LastLayer(self.hidden_size, self.patch_size[-1], self.out_channels, dtype=dtype, device=device, operations=operations)
def forward_orig(
self,
img: Tensor,
img_ids: Tensor,
txt: Tensor,
txt_ids: Tensor,
txt_mask: Tensor,
timesteps: Tensor,
y: Tensor,
guidance: Tensor = None,
guiding_frame_index=None,
control=None,
transformer_options={},
) -> Tensor:
patches_replace = transformer_options.get("patches_replace", {})
initial_shape = list(img.shape)
# running on sequences img
img = self.img_in(img)
vec = self.time_in(timestep_embedding(timesteps, 256, time_factor=1.0).to(img.dtype))
if guiding_frame_index is not None:
token_replace_vec = self.time_in(timestep_embedding(guiding_frame_index, 256, time_factor=1.0))
vec_ = self.vector_in(y[:, :self.params.vec_in_dim])
vec = torch.cat([(vec_ + token_replace_vec).unsqueeze(1), (vec_ + vec).unsqueeze(1)], dim=1)
frame_tokens = (initial_shape[-1] // self.patch_size[-1]) * (initial_shape[-2] // self.patch_size[-2])
modulation_dims = [(0, frame_tokens, 0), (frame_tokens, None, 1)]
modulation_dims_txt = [(0, None, 1)]
else:
vec = vec + self.vector_in(y[:, :self.params.vec_in_dim])
modulation_dims = None
modulation_dims_txt = None
if self.params.guidance_embed:
if guidance is not None:
vec = vec + self.guidance_in(timestep_embedding(guidance, 256).to(img.dtype))
if txt_mask is not None and not torch.is_floating_point(txt_mask):
txt_mask = (txt_mask - 1).to(img.dtype) * torch.finfo(img.dtype).max
txt = self.txt_in(txt, timesteps, txt_mask)
ids = torch.cat((img_ids, txt_ids), dim=1)
pe = self.pe_embedder(ids)
img_len = img.shape[1]
if txt_mask is not None:
attn_mask_len = img_len + txt.shape[1]
attn_mask = torch.zeros((1, 1, attn_mask_len), dtype=img.dtype, device=img.device)
attn_mask[:, 0, img_len:] = txt_mask
else:
attn_mask = None
blocks_replace = patches_replace.get("dit", {})
for i, block in enumerate(self.double_blocks):
if ("double_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"], out["txt"] = block(img=args["img"], txt=args["txt"], vec=args["vec"], pe=args["pe"], attn_mask=args["attention_mask"], modulation_dims_img=args["modulation_dims_img"], modulation_dims_txt=args["modulation_dims_txt"])
return out
out = blocks_replace[("double_block", i)]({"img": img, "txt": txt, "vec": vec, "pe": pe, "attention_mask": attn_mask, 'modulation_dims_img': modulation_dims, 'modulation_dims_txt': modulation_dims_txt}, {"original_block": block_wrap})
txt = out["txt"]
img = out["img"]
else:
img, txt = block(img=img, txt=txt, vec=vec, pe=pe, attn_mask=attn_mask, modulation_dims_img=modulation_dims, modulation_dims_txt=modulation_dims_txt)
if control is not None: # Controlnet
control_i = control.get("input")
if i < len(control_i):
add = control_i[i]
if add is not None:
img += add
img = torch.cat((img, txt), 1)
for i, block in enumerate(self.single_blocks):
if ("single_block", i) in blocks_replace:
def block_wrap(args):
out = {}
out["img"] = block(args["img"], vec=args["vec"], pe=args["pe"], attn_mask=args["attention_mask"], modulation_dims=args["modulation_dims"])
return out
out = blocks_replace[("single_block", i)]({"img": img, "vec": vec, "pe": pe, "attention_mask": attn_mask, 'modulation_dims': modulation_dims}, {"original_block": block_wrap})
img = out["img"]
else:
img = block(img, vec=vec, pe=pe, attn_mask=attn_mask, modulation_dims=modulation_dims)
if control is not None: # Controlnet
control_o = control.get("output")
if i < len(control_o):
add = control_o[i]
if add is not None:
img[:, : img_len] += add
img = img[:, : img_len]
img = self.final_layer(img, vec, modulation_dims=modulation_dims) # (N, T, patch_size ** 2 * out_channels)
shape = initial_shape[-3:]
for i in range(len(shape)):
shape[i] = shape[i] // self.patch_size[i]
img = img.reshape([img.shape[0]] + shape + [self.out_channels] + self.patch_size)
img = img.permute(0, 4, 1, 5, 2, 6, 3, 7)
img = img.reshape(initial_shape[0], self.out_channels, initial_shape[2], initial_shape[3], initial_shape[4])
return img
def forward(self, x, timestep, context, y, guidance=None, attention_mask=None, guiding_frame_index=None, control=None, transformer_options={}, **kwargs):
bs, c, t, h, w = x.shape
patch_size = self.patch_size
t_len = ((t + (patch_size[0] // 2)) // patch_size[0])
h_len = ((h + (patch_size[1] // 2)) // patch_size[1])
w_len = ((w + (patch_size[2] // 2)) // patch_size[2])
img_ids = torch.zeros((t_len, h_len, w_len, 3), device=x.device, dtype=x.dtype)
img_ids[:, :, :, 0] = img_ids[:, :, :, 0] + torch.linspace(0, t_len - 1, steps=t_len, device=x.device, dtype=x.dtype).reshape(-1, 1, 1)
img_ids[:, :, :, 1] = img_ids[:, :, :, 1] + torch.linspace(0, h_len - 1, steps=h_len, device=x.device, dtype=x.dtype).reshape(1, -1, 1)
img_ids[:, :, :, 2] = img_ids[:, :, :, 2] + torch.linspace(0, w_len - 1, steps=w_len, device=x.device, dtype=x.dtype).reshape(1, 1, -1)
img_ids = repeat(img_ids, "t h w c -> b (t h w) c", b=bs)
txt_ids = torch.zeros((bs, context.shape[1], 3), device=x.device, dtype=x.dtype)
out = self.forward_orig(x, img_ids, context, txt_ids, attention_mask, timestep, y, guidance, guiding_frame_index, control, transformer_options)
return out

View File

@ -47,7 +47,7 @@ def reshape_for_broadcast(freqs_cis: Union[torch.Tensor, Tuple[torch.Tensor]], x
def rotate_half(x):
x_real, x_imag = x.reshape(*x.shape[:-1], -1, 2).unbind(-1) # [B, S, H, D//2]
x_real, x_imag = x.float().reshape(*x.shape[:-1], -1, 2).unbind(-1) # [B, S, H, D//2]
return torch.stack([-x_imag, x_real], dim=-1).flatten(3)
@ -78,9 +78,10 @@ def apply_rotary_emb(
xk_out = None
if isinstance(freqs_cis, tuple):
cos, sin = reshape_for_broadcast(freqs_cis, xq, head_first) # [S, D]
xq_out = (xq * cos + rotate_half(xq) * sin)
cos, sin = cos.to(xq.device), sin.to(xq.device)
xq_out = (xq.float() * cos + rotate_half(xq.float()) * sin).type_as(xq)
if xk is not None:
xk_out = (xk * cos + rotate_half(xk) * sin)
xk_out = (xk.float() * cos + rotate_half(xk.float()) * sin).type_as(xk)
else:
xq_ = torch.view_as_complex(xq.float().reshape(*xq.shape[:-1], -1, 2)) # [B, S, H, D//2]
freqs_cis = reshape_for_broadcast(freqs_cis, xq_, head_first).to(xq.device) # [S, D//2] --> [1, S, 1, D//2]

View File

@ -1,17 +1,24 @@
from typing import Any, Optional
import torch
import torch.nn as nn
import torch.nn.functional as F
from torch.utils import checkpoint
from comfy.ldm.modules.diffusionmodules.mmdit import (
Mlp,
TimestepEmbedder,
PatchEmbed,
RMSNorm,
)
from comfy.ldm.modules.diffusionmodules.util import timestep_embedding
from .poolers import AttentionPool
import comfy.latent_formats
from .models import HunYuanDiTBlock, calc_rope
from .posemb_layers import get_2d_rotary_pos_embed, get_fill_resize_and_crop
class HunYuanControlNet(nn.Module):
@ -164,6 +171,9 @@ class HunYuanControlNet(nn.Module):
),
)
# Image embedding
num_patches = self.x_embedder.num_patches
# HUnYuanDiT Blocks
self.blocks = nn.ModuleList(
[

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@ -1,6 +1,8 @@
from typing import Any
import torch
import torch.nn as nn
import torch.nn.functional as F
import comfy.ops
from comfy.ldm.modules.diffusionmodules.mmdit import Mlp, TimestepEmbedder, PatchEmbed, RMSNorm
@ -19,7 +21,6 @@ def calc_rope(x, patch_size, head_size):
sub_args = [start, stop, (th, tw)]
# head_size = HUNYUAN_DIT_CONFIG['DiT-g/2']['hidden_size'] // HUNYUAN_DIT_CONFIG['DiT-g/2']['num_heads']
rope = get_2d_rotary_pos_embed(head_size, *sub_args)
rope = (rope[0].to(x), rope[1].to(x))
return rope
@ -248,6 +249,9 @@ class HunYuanDiT(nn.Module):
operations.Linear(hidden_size * 4, hidden_size, bias=True, dtype=dtype, device=device),
)
# Image embedding
num_patches = self.x_embedder.num_patches
# HUnYuanDiT Blocks
self.blocks = nn.ModuleList([
HunYuanDiTBlock(hidden_size=hidden_size,
@ -282,7 +286,7 @@ class HunYuanDiT(nn.Module):
style=None,
return_dict=False,
control=None,
transformer_options={},
transformer_options=None,
):
"""
Forward pass of the encoder.
@ -310,7 +314,8 @@ class HunYuanDiT(nn.Module):
return_dict: bool
Whether to return a dictionary.
"""
patches_replace = transformer_options.get("patches_replace", {})
#import pdb
#pdb.set_trace()
encoder_hidden_states = context
text_states = encoder_hidden_states # 2,77,1024
text_states_t5 = encoder_hidden_states_t5 # 2,256,2048
@ -358,8 +363,6 @@ class HunYuanDiT(nn.Module):
# Concatenate all extra vectors
c = t + self.extra_embedder(extra_vec) # [B, D]
blocks_replace = patches_replace.get("dit", {})
controls = None
if control:
controls = control.get("output", None)
@ -368,23 +371,12 @@ class HunYuanDiT(nn.Module):
for layer, block in enumerate(self.blocks):
if layer > self.depth // 2:
if controls is not None:
skip = skips.pop() + controls.pop().to(dtype=x.dtype)
skip = skips.pop() + controls.pop()
else:
skip = skips.pop()
else:
skip = None
if ("double_block", layer) in blocks_replace:
def block_wrap(args):
out = {}
out["img"] = block(args["img"], args["vec"], args["txt"], args["pe"], args["skip"])
return out
out = blocks_replace[("double_block", layer)]({"img": x, "txt": text_states, "vec": c, "pe": freqs_cis_img, "skip": skip}, {"original_block": block_wrap})
x = out["img"]
else:
x = block(x, c, text_states, freqs_cis_img, skip) # (N, L, D)
else:
x = block(x, c, text_states, freqs_cis_img) # (N, L, D)
if layer < (self.depth // 2 - 1):
skips.append(x)

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@ -1,5 +1,6 @@
import torch
import torch.nn as nn
import torch.nn.functional as F
from comfy.ldm.modules.attention import optimized_attention
import comfy.ops

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