> ## 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 boundaries 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 an error is raised. | MESH      | Yes      | -                    |
| `resolution` | The width and height, in pixels, of the rendered image (default: 1024).                                        | INT       | Yes      | 64 to 4096 (step 64) |

Note: If the mesh has no UV coordinates, the node raises the error "mesh has no UVs to render. Run UnwrapMesh first." 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, with each chart colored and chart boundary edges 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)

***

**Source fingerprint (SHA-256):** `b462101036418350390ffed621e583c6de14d5ea34d1e427342dc44ec3fd1922`