> For the complete documentation index, see [llms.txt](https://portalgraphvr.gitbook.io/portalgraph-document-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://portalgraphvr.gitbook.io/portalgraph-document-en/how-to-use-portalgraph-app/camera-tracking-app-settings.md).
# Camera Tracking Application Settings
This section explains the settings options of the camera tracking application.
* **Start Minimized** — If checked, the window will automatically minimize on the next launch.
* **IP Address, Port** — The destination for sending coordinate data. Usually does not need to be changed.
* **IPD** — Enter the user's interpupillary distance in mm. Normally 65.
* **Camera** — Select the camera to use. Click the circular arrow icon to refresh the dropdown if a new camera has been connected.
* **Resolution, FPS** — Enter the camera resolution and FPS. Set the resolution low to reduce CPU load (640×360 is sufficient). You can check your camera's supported resolution and FPS in the Windows Camera app under "Video Settings."
* **FOV, Focal Length** — Enter the camera's field of view and focal length. These are set automatically through calibration.
* **Calibration** — Click to start calibration. A countdown will begin — position yourself so that the center of your eyes is 50 cm directly in front of the camera and wait. The camera's FOV and focal length will be set automatically.
* **Apply** — Click to apply the entered values. Note that values will not take effect unless you click Apply.
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