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Reduce artifacts on Wan by doing the patch embedding in fp32.

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comfyanonymous 2025-02-26 16:59:26 -05:00
parent 26c7baf789
commit 0270a0b41c
1 changed files with 3 additions and 3 deletions
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6
comfy/ldm/wan/model.py
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@ -18,7 +18,7 @@ def sinusoidal_embedding_1d(dim, position):
# preprocess
assert dim % 2 == 0
half = dim // 2
position = position.type(torch.float64)
position = position.type(torch.float32)
# calculation
sinusoid = torch.outer(
@ -353,7 +353,7 @@ class WanModel(torch.nn.Module):
# embeddings
self.patch_embedding = operations.Conv3d(
in_dim, dim, kernel_size=patch_size, stride=patch_size, device=operation_settings.get("device"), dtype=operation_settings.get("dtype"))
in_dim, dim, kernel_size=patch_size, stride=patch_size, device=operation_settings.get("device"), dtype=torch.float32)
self.text_embedding = nn.Sequential(
operations.Linear(text_dim, dim, device=operation_settings.get("device"), dtype=operation_settings.get("dtype")), nn.GELU(approximate='tanh'),
operations.Linear(dim, dim, device=operation_settings.get("device"), dtype=operation_settings.get("dtype")))
@ -411,7 +411,7 @@ class WanModel(torch.nn.Module):
List of denoised video tensors with original input shapes [C_out, F, H / 8, W / 8]
"""
# embeddings
x = self.patch_embedding(x)
x = self.patch_embedding(x.float()).to(x.dtype)
grid_sizes = x.shape[2:]
x = x.flatten(2).transpose(1, 2)