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import logging
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 = 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):
# self.scheduler_name = p.scheduler
if p.cfg_scale > 2.0:
logging.warning("Low CFG is recommended when using CFG++ samplers")
return super().sample(p, *args, **kwargs)
def sample_img2img(self, p, *args, **kwargs):
# self.scheduler_name = p.scheduler
if p.cfg_scale > 2.0:
logging.warning("Low CFG is recommended when using CFG++ samplers")
return super().sample_img2img(p, *args, **kwargs)
def build_constructor(sampler_name):
def constructor(model):
return AlterSampler(model, sampler_name)
return constructor
samplers_data_alter = [
sd_samplers_common.SamplerData("DPM++ 2M CFG++", build_constructor(sampler_name="dpmpp_2m_cfg_pp"), ["dpmpp_2m_cfg_pp"], {}),
sd_samplers_common.SamplerData("DPM++ SDE CFG++", build_constructor(sampler_name="dpmpp_sde_cfg_pp"), ["dpmpp_sde_cfg_pp"], {}),
sd_samplers_common.SamplerData("DPM++ 3M SDE CFG++", build_constructor(sampler_name="dpmpp_3m_sde_cfg_pp"), ["dpmpp_3m_sde_cfg_pp"], {}),
sd_samplers_common.SamplerData("Euler a CFG++", build_constructor(sampler_name="euler_ancestral_cfg_pp"), ["euler_ancestral_cfg_pp"], {}),
sd_samplers_common.SamplerData("Euler CFG++", build_constructor(sampler_name="euler_cfg_pp"), ["euler_cfg_pp"], {}),
]
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