> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-docs-cms-changelog-node-lifecycle.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# TripoRigNode - ComfyUI Built-in Node Documentation

> This node takes an existing Tripo 3D model and creates a rigged version of it, meaning the model gets a skeleton so it can be animated.

This node takes an existing Tripo 3D model and creates a rigged version of it, meaning the model gets a skeleton so it can be animated. You provide the task ID of the model to rig, choose the rig version, skeleton type, bone-naming style, and output file format, and the node sends the job to Tripo, waits until it finishes, then returns the downloaded result.

## Inputs

| Parameter                | Description                                                                                                                                                                                                 | Data Type       | Required | Range                                                                                                            |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------- | -------- | ---------------------------------------------------------------------------------------------------------------- |
| `original_model_task_id` | The task ID of the original 3D model to be rigged. This is usually the ID produced by an earlier Tripo model-generation node.                                                                               | MODEL\_TASK\_ID | Yes      | -                                                                                                                |
| `model_version`          | Rig model version to use. v1.0: humanoid (biped) characters only, 90+ animation presets. v2.5: non-humanoid creatures (quadruped, hexapod, octopod, avian, serpentine, aquatic). Default: `v1.0-20240301`.  | COMBO           | No       | "v1.0-20240301"<br />"v2.5-20260210"                                                                             |
| `rig_type`               | Skeleton type. "auto" runs Tripo's free rig check first and uses the recommended type. Other values force a specific skeleton type, such as biped for humanoid characters. Default: "auto".                 | COMBO           | No       | "auto"<br />"biped"<br />"quadruped"<br />"hexapod"<br />"octopod"<br />"avian"<br />"serpentine"<br />"aquatic" |
| `spec`                   | Bone naming scheme: Tripo native or Mixamo-compatible. Tripo cannot retarget its animation presets onto a v1.0 rig made with the mixamo spec; use tripo for Tripo: Retarget rigged model. Default: "tripo". | COMBO           | No       | "tripo"<br />"mixamo"                                                                                            |
| `out_format`             | Output file format; the result arrives on the matching output. Default: "glb".                                                                                                                              | COMBO           | No       | "glb"<br />"fbx"                                                                                                 |

**Note:** The v1.0 model version (`v1.0-20240301`) only supports biped skeletons. If a non-biped `rig_type` is used with this version, the node raises an error and instructs you to use `v2.5-20260210` instead.

**Note:** When `rig_type` is "auto", Tripo first checks whether the model can be rigged and picks the recommended skeleton type. If Tripo reports that the model cannot be rigged, the node fails with an error.

## Outputs

| Output Name   | Description                                                               | Data Type     |
| ------------- | ------------------------------------------------------------------------- | ------------- |
| `model_file`  | The generated rigged 3D model file. Kept for backward compatibility only. | STRING        |
| `rig task_id` | The task ID for tracking the rig generation process.                      | RIG\_TASK\_ID |
| `GLB`         | The rigged model as a GLB 3D file. Populated when `out_format` is "glb".  | FILE3DGLB     |
| `FBX`         | The rigged model as an FBX 3D file. Populated when `out_format` is "fbx". | FILE3DFBX     |

> 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/TripoRigNode/en.md)

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