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Add nested style of dual cfg to DualCFGGuider node. (#8965)

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comfyanonymous 2025-07-19 01:55:23 -07:00 committed by GitHub
parent 7f492522b6
commit 1b96fae1d4
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1 changed files with 18 additions and 10 deletions
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14
comfy_extras/nodes_custom_sampler.py
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@ -683,9 +683,10 @@ class CFGGuider:
return (guider,)
class Guider_DualCFG(comfy.samplers.CFGGuider):
def set_cfg(self, cfg1, cfg2):
def set_cfg(self, cfg1, cfg2, nested=False):
self.cfg1 = cfg1
self.cfg2 = cfg2
self.nested = nested
def set_conds(self, positive, middle, negative):
middle = node_helpers.conditioning_set_values(middle, {"prompt_type": "negative"})
@ -695,6 +696,12 @@ class Guider_DualCFG(comfy.samplers.CFGGuider):
negative_cond = self.conds.get("negative", None)
middle_cond = self.conds.get("middle", None)
positive_cond = self.conds.get("positive", None)
if self.nested:
out = comfy.samplers.calc_cond_batch(self.inner_model, [negative_cond, middle_cond, positive_cond], x, timestep, model_options)
pred_text = comfy.samplers.cfg_function(self.inner_model, out[2], out[1], self.cfg1, x, timestep, model_options=model_options, cond=positive_cond, uncond=middle_cond)
return out[0] + self.cfg2 * (pred_text - out[0])
else:
if model_options.get("disable_cfg1_optimization", False) == False:
if math.isclose(self.cfg2, 1.0):
negative_cond = None
@ -714,6 +721,7 @@ class DualCFGGuider:
"negative": ("CONDITIONING", ),
"cfg_conds": ("FLOAT", {"default": 8.0, "min": 0.0, "max": 100.0, "step":0.1, "round": 0.01}),
"cfg_cond2_negative": ("FLOAT", {"default": 8.0, "min": 0.0, "max": 100.0, "step":0.1, "round": 0.01}),
"style": (["regular", "nested"],),
}
}
@ -722,10 +730,10 @@ class DualCFGGuider:
FUNCTION = "get_guider"
CATEGORY = "sampling/custom_sampling/guiders"
def get_guider(self, model, cond1, cond2, negative, cfg_conds, cfg_cond2_negative):
def get_guider(self, model, cond1, cond2, negative, cfg_conds, cfg_cond2_negative, style):
guider = Guider_DualCFG(model)
guider.set_conds(cond1, cond2, negative)
guider.set_cfg(cfg_conds, cfg_cond2_negative)
guider.set_cfg(cfg_conds, cfg_cond2_negative, nested=(style == "nested"))
return (guider,)
class DisableNoise: