> ## 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.

# RenderUVAtlas - ComfyUI Built-in Node Documentation

> Renders a mesh's UV layout as an image.

Renders a mesh's UV layout as an image. Each connected UV region (chart) is filled with a distinct color, and chart boundary edges are outlined in black on a dark gray background.

## Inputs

| Parameter | Description | Data Type | Required | Range |
| - | - | - | - | - |
| `mesh` | The 3D mesh whose UV layout will be rendered. The mesh must have UV coordinates; otherwise the node raises the error "mesh has no UVs to render. Run UnwrapMesh first." | MESH | Yes | - |
| `resolution` | The width and height, in pixels, of the rendered square image (default: 1024). | INT | Yes | 64 to 4096 (step 64) |

Note: If the mesh contains a batch dimension (3D UV or face arrays), only the first item in the batch is rendered.

## Outputs

| Output Name | Description | Data Type |
| - | - | - |
| `image` | The rendered UV atlas image, returned as a single-image batch. Each UV chart is colored, and chart boundary edges are outlined in black. | IMAGE |

> 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/RenderUVAtlas/en.md)

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