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Guard the edge cases of noise term in er_sde (#7265)

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chaObserv 2025-03-16 18:02:25 +08:00 committed by GitHub
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comfy/k_diffusion/sampling.py
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@ -1419,6 +1419,6 @@ def sample_er_sde(model, x, sigmas, extra_args=None, callback=None, disable=None
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()
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