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Merge pull request #5797 from mcmonkey4eva/dpm2-a-fix

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Add a workaround patch for DPM2 a issue
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AUTOMATIC1111 2022-12-24 08:51:43 +03:00 committed by GitHub
commit 5667ec4ca7
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1 changed files with 6 additions and 0 deletions
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6
modules/sd_samplers.py
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@ -454,6 +454,9 @@ class KDiffusionSampler:
else:
sigmas = self.model_wrap.get_sigmas(steps)
if self.funcname in ['sample_dpm_2_ancestral', 'sample_dpm_2']:
sigmas = torch.cat([sigmas[:-2], sigmas[-1:]])
sigma_sched = sigmas[steps - t_enc - 1:]
xi = x + noise * sigma_sched[0]
@ -494,6 +497,9 @@ class KDiffusionSampler:
x = x * sigmas[0]
if self.funcname in ['sample_dpm_2_ancestral', 'sample_dpm_2']:
sigmas = torch.cat([sigmas[:-2], sigmas[-1:]])
extra_params_kwargs = self.initialize(p)
if 'sigma_min' in inspect.signature(self.func).parameters:
extra_params_kwargs['sigma_min'] = self.model_wrap.sigmas[0].item()