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pixart: more spots where transformer access needs fixing #1667

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Merged
merged 1 commit into from
Jul 27, 2025
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pixart: more spots where transformer access needs fixing #1667

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11 changes: 8 additions & 3 deletions helpers/models/pixart/pipeline.py
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Original file line number Diff line number Diff line change
Expand Up @@ -280,10 +280,15 @@ def load_lora_weights(
transformer_state_dict[key] = value

# Load into transformer if there are transformer weights
_transformer = (
self.transformer
if not hasattr(self.transformer, "transformer")
else self.transformer.transformer
)
if transformer_state_dict:
self.load_lora_into_transformer(
transformer_state_dict,
transformer=self.transformer.transformer, # Access the base transformer
transformer=_transformer, # Access the base transformer
adapter_name=adapter_name,
_pipeline=self,
)
Expand Down Expand Up @@ -2970,7 +2975,7 @@ def __call__(
)

# 5. Prepare latents
latent_channels = self.transformer.transformer.config.in_channels
latent_channels = _transformer.config.in_channels
latents = self.prepare_latents(
batch_size * num_images_per_prompt,
latent_channels,
Expand Down Expand Up @@ -3066,7 +3071,7 @@ def __call__(

# learned sigma
if (
self.transformer.transformer.config.out_channels // 2
_transformer.config.out_channels // 2
== latent_channels
):
noise_pred = noise_pred.chunk(2, dim=1)[0]
Expand Down
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