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0665518 66deebd 0665518 0070fce 0665518 0070fce 66deebd 0665518 0070fce 0665518 66deebd 0665518 66deebd 0665518 0070fce 66deebd 0665518 66deebd 0070fce 66deebd 0070fce 66deebd 0070fce | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | import logging
from typing import Callable
from modules import sd_samplers_cfgpp, sd_samplers_common, sd_samplers_kdiffusion
class AlterSampler(sd_samplers_kdiffusion.KDiffusionSampler):
def __init__(self, sd_model, sampler_name, scheduler_name=None):
self.sampler_name = sampler_name
self.scheduler_name = scheduler_name
self.unet = sd_model.forge_objects.unet
sampler_function: Callable = getattr(sd_samplers_cfgpp, f"sample_{self.sampler_name}", None)
if sampler_function is None:
raise ValueError(f"Unknown sampler: {sampler_name}")
super().__init__(sampler_function, sd_model, None)
def sample(self, p, *args, **kwargs):
if p.cfg_scale > 2.0:
logging.warning("CFG between 1.0 ~ 2.0 is recommended when using CFG++ samplers")
return super().sample(p, *args, **kwargs)
def sample_img2img(self, p, *args, **kwargs):
if p.cfg_scale > 2.0:
logging.warning("CFG between 1.0 ~ 2.0 is recommended when using CFG++ samplers")
return super().sample_img2img(p, *args, **kwargs)
def build_constructor(sampler_key: str) -> Callable:
def constructor(model):
return AlterSampler(model, sampler_key)
return constructor
def create_cfg_pp_sampler(sampler_name: str, sampler_key: str) -> "sd_samplers_common.SamplerData":
config = {}
base_name = sampler_name.removesuffix(" CFG++")
for name, _, _, params in sd_samplers_kdiffusion.samplers_k_diffusion:
if name == base_name:
config = params.copy()
break
return sd_samplers_common.SamplerData(sampler_name, build_constructor(sampler_key=sampler_key), [sampler_key], config)
samplers_data_alter = [
create_cfg_pp_sampler("DPM++ 2M CFG++", "dpmpp_2m_cfg_pp"),
create_cfg_pp_sampler("DPM++ SDE CFG++", "dpmpp_sde_cfg_pp"),
create_cfg_pp_sampler("DPM++ 2M SDE CFG++", "dpmpp_2m_sde_cfg_pp"),
create_cfg_pp_sampler("DPM++ 3M SDE CFG++", "dpmpp_3m_sde_cfg_pp"),
create_cfg_pp_sampler("Euler a CFG++", "euler_ancestral_cfg_pp"),
create_cfg_pp_sampler("Euler CFG++", "euler_cfg_pp"),
]
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