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[MM] Add support for probing and loading SDXL VAE checkpoint files (#6524)

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* add support for probing and loading SDXL VAE checkpoint files

* broaden regexp probe for SDXL VAEs

---------

Co-authored-by: Lincoln Stein <lstein@gmail.com>
This commit is contained in:
Lincoln Stein
2024-06-19 22:57:27 -04:00
committed by GitHub
parent a43d602f16
commit b03073d888
2 changed files with 13 additions and 10 deletions
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11
invokeai/backend/model_manager/load/model_loaders/vae.py
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@ -22,8 +22,7 @@ from .generic_diffusers import GenericDiffusersLoader
@ModelLoaderRegistry.register(base=BaseModelType.Any, type=ModelType.VAE, format=ModelFormat.Diffusers)
@ModelLoaderRegistry.register(base=BaseModelType.StableDiffusion1, type=ModelType.VAE, format=ModelFormat.Checkpoint)
@ModelLoaderRegistry.register(base=BaseModelType.StableDiffusion2, type=ModelType.VAE, format=ModelFormat.Checkpoint)
@ModelLoaderRegistry.register(base=BaseModelType.Any, type=ModelType.VAE, format=ModelFormat.Checkpoint)
class VAELoader(GenericDiffusersLoader):
"""Class to load VAE models."""
@ -40,12 +39,8 @@ class VAELoader(GenericDiffusersLoader):
return True
def _convert_model(self, config: AnyModelConfig, model_path: Path, output_path: Optional[Path] = None) -> AnyModel:
# TODO(MM2): check whether sdxl VAE models convert.
if config.base not in {BaseModelType.StableDiffusion1, BaseModelType.StableDiffusion2}:
raise Exception(f"VAE conversion not supported for model type: {config.base}")
else:
assert isinstance(config, CheckpointConfigBase)
config_file = self._app_config.legacy_conf_path / config.config_path
assert isinstance(config, CheckpointConfigBase)
config_file = self._app_config.legacy_conf_path / config.config_path
if model_path.suffix == ".safetensors":
checkpoint = safetensors_load_file(model_path, device="cpu")