Merge remote-tracking branch 'KohakuBlueleaf/custom-k-sched-settings' into dev

This commit is contained in:
AUTOMATIC 2023-05-27 19:08:02 +03:00
commit 654234ec56
4 changed files with 63 additions and 1 deletions

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@ -306,6 +306,18 @@ Steps: 20, Sampler: Euler a, CFG scale: 7, Seed: 965400086, Size: 512x512, Model
if "RNG" not in res:
res["RNG"] = "GPU"
if "KDiff Schedule Type" not in res:
res["KDiff Schedule Type"] = "Automatic"
if "KDiff Schedule max sigma" not in res:
res["KDiff Schedule max sigma"] = 14.6
if "KDiff Schedule min sigma" not in res:
res["KDiff Schedule min sigma"] = 0.3
if "KDiff Schedule rho" not in res:
res["KDiff Schedule rho"] = 7.0
return res
@ -318,6 +330,10 @@ infotext_to_setting_name_mapping = [
('Conditional mask weight', 'inpainting_mask_weight'),
('Model hash', 'sd_model_checkpoint'),
('ENSD', 'eta_noise_seed_delta'),
('KDiff Schedule Type', 'k_sched_type'),
('KDiff Schedule max sigma', 'sigma_max'),
('KDiff Schedule min sigma', 'sigma_min'),
('KDiff Schedule rho', 'rho'),
('Noise multiplier', 'initial_noise_multiplier'),
('Eta', 'eta_ancestral'),
('Eta DDIM', 'eta_ddim'),

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@ -44,6 +44,14 @@ sampler_extra_params = {
'sample_dpm_2': ['s_churn', 's_tmin', 's_tmax', 's_noise'],
}
k_diffusion_samplers_map = {x.name: x for x in samplers_data_k_diffusion}
k_diffusion_scheduler = {
'Automatic': None,
'karras': k_diffusion.sampling.get_sigmas_karras,
'exponential': k_diffusion.sampling.get_sigmas_exponential,
'polyexponential': k_diffusion.sampling.get_sigmas_polyexponential
}
class CFGDenoiser(torch.nn.Module):
"""
@ -265,6 +273,13 @@ class KDiffusionSampler:
try:
return func()
except RecursionError:
print(
'Encountered RecursionError during sampling, returning last latent. '
'rho >5 with a polyexponential scheduler may cause this error. '
'You should try to use a smaller rho value instead.'
)
return self.last_latent
except sd_samplers_common.InterruptedException:
return self.last_latent
@ -304,6 +319,29 @@ class KDiffusionSampler:
if p.sampler_noise_scheduler_override:
sigmas = p.sampler_noise_scheduler_override(steps)
elif opts.k_sched_type != "Automatic":
m_sigma_min, m_sigma_max = (self.model_wrap.sigmas[0].item(), self.model_wrap.sigmas[-1].item())
sigma_min, sigma_max = (0.1, 10)
sigmas_kwargs = {
'sigma_min': sigma_min if opts.use_old_karras_scheduler_sigmas else m_sigma_min,
'sigma_max': sigma_max if opts.use_old_karras_scheduler_sigmas else m_sigma_max
}
sigmas_func = k_diffusion_scheduler[opts.k_sched_type]
p.extra_generation_params["KDiff Schedule Type"] = opts.k_sched_type
if opts.sigma_min != 0.3:
# take 0.0 as model default
sigmas_kwargs['sigma_min'] = opts.sigma_min or m_sigma_min
p.extra_generation_params["KDiff Schedule min sigma"] = opts.sigma_min
if opts.sigma_max != 14.6:
sigmas_kwargs['sigma_max'] = opts.sigma_max or m_sigma_max
p.extra_generation_params["KDiff Schedule max sigma"] = opts.sigma_max
if opts.k_sched_type != 'exponential':
sigmas_kwargs['rho'] = opts.rho
p.extra_generation_params["KDiff Schedule rho"] = opts.rho
sigmas = sigmas_func(n=steps, **sigmas_kwargs, device=shared.device)
elif self.config is not None and self.config.options.get('scheduler', None) == 'karras':
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())

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@ -518,6 +518,10 @@ options_templates.update(options_section(('sampler-params', "Sampler parameters"
's_churn': OptionInfo(0.0, "sigma churn", gr.Slider, {"minimum": 0.0, "maximum": 1.0, "step": 0.01}),
's_tmin': OptionInfo(0.0, "sigma tmin", gr.Slider, {"minimum": 0.0, "maximum": 1.0, "step": 0.01}),
's_noise': OptionInfo(1.0, "sigma noise", gr.Slider, {"minimum": 0.0, "maximum": 1.0, "step": 0.01}),
'k_sched_type': OptionInfo("Automatic", "scheduler type", gr.Dropdown, {"choices": ["Automatic", "karras", "exponential", "polyexponential"]}),
'sigma_max': OptionInfo(14.6, "sigma max", gr.Number).info("the maximum noise strength for the scheduler. Set to 0 to use the same value which 'xxx karras' samplers use."),
'sigma_min': OptionInfo(0.3, "sigma min", gr.Number).info("the minimum noise strength for the scheduler. Set to 0 to use the same value which 'xxx karras' samplers use."),
'rho': OptionInfo(7.0, "rho", gr.Number).info("higher will make a more steep noise scheduler (decrease faster). default for karras is 7.0, for polyexponential is 1.0"),
'eta_noise_seed_delta': OptionInfo(0, "Eta noise seed delta", gr.Number, {"precision": 0}).info("ENSD; does not improve anything, just produces different results for ancestral samplers - only useful for reproducing images"),
'always_discard_next_to_last_sigma': OptionInfo(False, "Always discard next-to-last sigma").link("PR", "https://github.com/AUTOMATIC1111/stable-diffusion-webui/pull/6044"),
'uni_pc_variant': OptionInfo("bh1", "UniPC variant", gr.Radio, {"choices": ["bh1", "bh2", "vary_coeff"]}),

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@ -10,7 +10,7 @@ import numpy as np
import modules.scripts as scripts
import gradio as gr
from modules import images, sd_samplers, processing, sd_models, sd_vae
from modules import images, sd_samplers, processing, sd_models, sd_vae, sd_samplers_kdiffusion
from modules.processing import process_images, Processed, StableDiffusionProcessingTxt2Img
from modules.shared import opts, state
import modules.shared as shared
@ -220,6 +220,10 @@ axis_options = [
AxisOption("Sigma min", float, apply_field("s_tmin")),
AxisOption("Sigma max", float, apply_field("s_tmax")),
AxisOption("Sigma noise", float, apply_field("s_noise")),
AxisOption("KDiff Schedule Type", str, apply_override("k_sched_type"), choices=lambda: list(sd_samplers_kdiffusion.k_diffusion_scheduler)),
AxisOption("KDiff Schedule min sigma", float, apply_override("sigma_min")),
AxisOption("KDiff Schedule max sigma", float, apply_override("sigma_max")),
AxisOption("KDiff Schedule rho", float, apply_override("rho")),
AxisOption("Eta", float, apply_field("eta")),
AxisOption("Clip skip", int, apply_clip_skip),
AxisOption("Denoising", float, apply_field("denoising_strength")),