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Aligning the height of a virtual scene using an ArUco marker

With Marker-Based Location Sharing, you can align a virtual scene according to the height setting of an ArUco marker.

When a user scans a marker created for Marker-Based Location Sharing, the virtual scene is set to the origin point.

The height of the virtual scene's origin point (y) is based on the height setting of the marker. By scanning a marker with a specific height setting, a user can align their perspective with the virtual scene.

Marker height is defined relative to the floor in the virtual scene, so in order to define the height of the marker correctly, you'll need to set the tracking origin of your virtual scene to the floor.

  1. Set the tracking origin of your virtual scene to the floor.

    If you're using the Wave Rig SDK in Unity, set Tracking Origin to Floor.

    See Unity XR Rig for details.

    If you're using the OpenXR Plugin in Unity, set Tracking Origin Mode to Floor.

    See How can I set the Tracking Origin Mode when using Unity XR? for details.

  2. Create your marker and set the height accordingly. If you're putting the marker on the floor, set the height to 0. For details, see Creating ArUco markers for Marker-Based Location Sharing. When a headset scans the marker, the virtual scene will shift to the coordinates 0, y, 0.
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