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change karras scheduler sigmas to values recommended by SD from old 0.1 to 10 with an option to revert to old

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AUTOMATIC
2023-01-01 09:51:37 +03:00
parent a939e82a0b
commit 16b9661d27
2 changed files with 8 additions and 2 deletions
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4
modules/sd_samplers.py
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@@ -465,7 +465,9 @@ class KDiffusionSampler:
if p.sampler_noise_scheduler_override:
sigmas = p.sampler_noise_scheduler_override(steps)
elif self.config is not None and self.config.options.get('scheduler', None) == 'karras':
sigmas = k_diffusion.sampling.get_sigmas_karras(n=steps, sigma_min=0.1, sigma_max=10, device=shared.device)
sigma_min, sigma_max = (0.1, 10) if opts.use_old_karras_scheduler_sigmas else (self.model_wrap.sigmas[0].item(), self.model_wrap.sigmas[-1].item())
sigmas = k_diffusion.sampling.get_sigmas_karras(n=steps, sigma_min=sigma_min, sigma_max=sigma_max, device=shared.device)
else:
sigmas = self.model_wrap.get_sigmas(steps)