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fix sde add noise typo #3839

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Merged
patrickvonplaten merged 6 commits into from
Jun 28, 2023
+5 −1
Merged

fix sde add noise typo #3839

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6ce2998
fix sde typo
UranusITS Jun 21, 2023
f44681a
fix code style
UranusITS Jun 21, 2023
ed6459b
Merge branch 'main' into fix-sde-typo
UranusITS Jun 21, 2023
5950805
Merge branch 'main' into fix-sde-typo
UranusITS Jun 22, 2023
bb55428
Merge branch 'main' into fix-sde-typo
UranusITS Jun 22, 2023
d0dd95c
Merge branch 'main' into fix-sde-typo
UranusITS Jun 27, 2023
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6 changes: 5 additions & 1 deletion src/diffusers/schedulers/scheduling_sde_ve.py
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Original file line number Diff line number Diff line change
Expand Up @@ -276,7 +276,11 @@ def add_noise(
# Make sure sigmas and timesteps have the same device and dtype as original_samples
timesteps = timesteps.to(original_samples.device)
sigmas = self.discrete_sigmas.to(original_samples.device)[timesteps]
noise = torch.randn_like(original_samples) * sigmas[:, None, None, None]
noise = (
noise * sigmas[:, None, None, None]
if noise is not None
else torch.randn_like(original_samples) * sigmas[:, None, None, None]
)
noisy_samples = noise + original_samples
return noisy_samples

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