# TencentSmartTopologyNode

This node performs smart retopology on a 3D model, automatically creating a new, cleaner mesh with optimized polygon count. It connects to a Tencent Hunyuan 3D API to process the model, supporting GLB and OBJ file formats up to 200MB. The node returns the processed model as an OBJ file.

## Inputs

| Parameter | Description | Data Type | Required | Range |
|-----------|-------------|-----------|----------|-------|
| `model_3d` | Input 3D model (GLB or OBJ). The file must be in GLB or OBJ format and cannot exceed 200MB. | FILE3D | Yes | - |
| `polygon_type` | Surface composition type. | STRING | Yes | `"triangle"`<br>`"quadrilateral"` |
| `face_level` | Polygon reduction level. | STRING | Yes | `"medium"`<br>`"high"`<br>`"low"` |
| `seed` | Seed controls whether the node should re-run; results are non-deterministic regardless of seed. (default: 0) | INT | No | 0 to 2147483647 |

**Note:** The `seed` parameter is used to trigger a re-run of the node, but the final output is not guaranteed to be the same for the same seed value.

## Outputs

| Output Name | Description | Data Type |
|-------------|-------------|-----------|
| `OBJ` | The processed 3D model with optimized topology, returned in OBJ format. | FILE3D |

> 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/TencentSmartTopologyNode/en.md)

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