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fix: UnboundLocalError for noise_pred_neg/perturbed when cfg=1.0 #460

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fix: UnboundLocalError for noise_pred_neg/perturbed when cfg=1.0 #460

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6 changes: 6 additions & 0 deletions guiders/multimodal_guider.py
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,12 @@ def predict_noise(
a_noise_pred_perturbed, v_noise_pred_perturbed = 0, 0
a_noise_pred_modality, v_noise_pred_modality = 0, 0

# Initialize to noise_pred_pos as fallback for sampler_post_cfg_function hooks,
# which reference these unconditionally even when the conditional blocks below
# are skipped (e.g. cfg=1.0 distilled mode skips do_uncond, no STG skips do_perturbed).
noise_pred_neg = noise_pred_pos
noise_pred_perturbed = noise_pred_pos

if any(params.do_uncond() for params in [audio_params, video_params]):
try:
model_options["transformer_options"]["run_vx"] = run_vx
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