fix for DDIM live previews in txt2img

1 files changed, 6 insertions, 0 deletions

diff --git a/modules/sd_samplers.py b/modules/sd_samplers.py
index 23022206..fd63e47f 100644
--- a/modules/sd_samplers.py
+++ b/modules/sd_samplers.py
@@ -113,6 +113,11 @@ class VanillaStableDiffusionSampler:
         return samples

 

     def sample(self, p, x, conditioning, unconditional_conditioning):

+        self.sampler.p_sample_ddim = lambda x_dec, cond, ts, *args, **kwargs: p_sample_ddim_hook(self, x_dec, cond, ts, *args, **kwargs)

+        self.mask = None

+        self.nmask = None

+        self.init_latent = None

+

         samples_ddim, _ = self.sampler.sample(S=p.steps, conditioning=conditioning, batch_size=int(x.shape[0]), shape=x[0].shape, verbose=False, unconditional_guidance_scale=p.cfg_scale, unconditional_conditioning=unconditional_conditioning, x_T=x)

         return samples_ddim

 

@@ -170,6 +175,7 @@ class KDiffusionSampler:
     def sample_img2img(self, p, x, noise, conditioning, unconditional_conditioning):

         t_enc = int(min(p.denoising_strength, 0.999) * p.steps)

         sigmas = self.model_wrap.get_sigmas(p.steps)

+

         noise = noise * sigmas[p.steps - t_enc - 1]

 

         xi = x + noise