> ## 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.

# MoGeGeometryToFOV - ComfyUI Built-in Node Documentation

> This node derives the field of view and focal length from the camera intrinsics stored in a MoGe geometry object.

This node derives the field of view and focal length from the camera intrinsics stored in a MoGe geometry object. It can return the vertical, horizontal, or diagonal FOV, in degrees or radians. The vertical FOV output can be used, for example, to feed the SAM3DBody\_Predict node.

## Inputs

| Parameter       | Description                                                                                                                                                                              | Data Type      | Required | Range                                        |
| --------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------- | -------- | -------------------------------------------- |
| `moge_geometry` | The MoGe geometry object. It must contain an intrinsics matrix and at least one of image, points, or depth data, which is used to read the pixel height for the focal-length conversion. | MOGE\_GEOMETRY | Yes      | —                                            |
| `axis`          | The axis along which the FOV is computed: "vertical" (fov\_y), "horizontal" (fov\_x), or "diagonal" (default: "vertical").                                                               | COMBO          | Yes      | "vertical"<br />"horizontal"<br />"diagonal" |
| `unit`          | Output unit for the FOV (default: "degrees").                                                                                                                                            | COMBO          | Yes      | "degrees"<br />"radians"                     |

Note: The node raises an error if `moge_geometry` contains no intrinsics (panorama geometry has none) or if it contains neither image, points, nor depth data.

## Outputs

| Output Name    | Description                                                                                | Data Type |
| -------------- | ------------------------------------------------------------------------------------------ | --------- |
| `fov`          | The field of view along the selected axis, in the selected unit (degrees or radians).      | FLOAT     |
| `focal_pixels` | The lens focal length in pixels, derived from the vertical intrinsic and the pixel height. | FLOAT     |

> 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/MoGeGeometryToFOV/en.md)

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