> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# SAM3DBody_Loader - ComfyUI Built-in Node Documentation

> Loads a SAM3D Body model from a checkpoint file stored in the detection folder and prepares it for 3D body detection use.

Loads a SAM3D Body model from a checkpoint file stored in the detection folder and prepares it for 3D body detection use. The node loads the model weights, detects and applies quantization settings if present, and wraps the model for automatic memory management.

## Inputs

| Parameter    | Description                                                                              | Data Type | Required | Range                                             |
| ------------ | ---------------------------------------------------------------------------------------- | --------- | -------- | ------------------------------------------------- |
| `model_file` | The SAM3D Body checkpoint file to load. The file must be placed in the detection folder. | COMBO     | Yes      | All model files available in the detection folder |

Note: The model file must be located in the detection folder. Loading fails with an error if the checkpoint's state dictionary keys do not match the SAM3D Body model structure.

## Outputs

| Output Name        | Description                                                                                                                                                                        | Data Type          |
| ------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ |
| `sam3d_body_model` | The loaded SAM3D Body model, wrapped for automatic memory management between GPU and CPU. Hand-detection weights are removed, so the model is specialized for body detection only. | SAM3D\_BODY\_MODEL |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/SAM3DBody_Loader/en.md)

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