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revert rho change

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rho? r? its just 1/2
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yoinked 2024-08-29 18:27:13 -07:00 committed by GitHub
parent 161d678f17
commit c807049ec2
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1 changed files with 2 additions and 1 deletions
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comfy/k_diffusion/sampling.py
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@ -1135,7 +1135,8 @@ def sample_dpmpp_2s_ancestral_cfg_pp(model, x, sigmas, extra_args=None, callback
else: else:
# DPM-Solver++(2S) # DPM-Solver++(2S)
t, t_next = t_fn(sigmas[i]), t_fn(sigma_down) t, t_next = t_fn(sigmas[i]), t_fn(sigma_down)
r = torch.sinh(1 + (2 - eta) * (t_next - t) / (t - t_fn(sigma_up))) # r = torch.sinh(1 + (2 - eta) * (t_next - t) / (t - t_fn(sigma_up))) works only on non-cfgpp, weird
r = 1 / 2
h = t_next - t h = t_next - t
s = t + r * h s = t + r * h
x_2 = (sigma_fn(s) / sigma_fn(t)) * (x + (denoised - temp[0])) - (-h * r).expm1() * denoised x_2 = (sigma_fn(s) / sigma_fn(t)) * (x + (denoised - temp[0])) - (-h * r).expm1() * denoised