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sampler_cfg_function now gets the noisy output as argument again.

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This should make things that use sampler_cfg_function behave like before.

Added an input argument for those that want the denoised output.

This means you can calculate the x0 prediction of the model by doing:
(input - cond) for example.
This commit is contained in:
comfyanonymous 2023-11-01 20:49:37 -04:00
parent 2455aaed8a
commit d2e27b48f1
1 changed files with 2 additions and 2 deletions
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comfy/samplers.py
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@ -251,8 +251,8 @@ def sampling_function(model_function, x, timestep, uncond, cond, cond_scale, mod
cond, uncond = calc_cond_uncond_batch(model_function, cond, uncond, x, timestep, max_total_area, model_options) cond, uncond = calc_cond_uncond_batch(model_function, cond, uncond, x, timestep, max_total_area, model_options)
if "sampler_cfg_function" in model_options: if "sampler_cfg_function" in model_options:
args = {"cond": cond, "uncond": uncond, "cond_scale": cond_scale, "timestep": timestep} args = {"cond": x - cond, "uncond": x - uncond, "cond_scale": cond_scale, "timestep": timestep, "input": x}
return model_options["sampler_cfg_function"](args) return x - model_options["sampler_cfg_function"](args)
else: else:
return uncond + (cond - uncond) * cond_scale return uncond + (cond - uncond) * cond_scale