Features

This package implements a set of AR Foundation features and also interfaces with additional OpenXR features from other XR packages.

Important

To use any feature in this package, you must enable the corresponding OpenXR Feature in the Android XR feature group. Otherwise, your app can't access these features. Refer to Project setup to understand how to enable Unity OpenXR: Android XR features.

AR features

This package implements the following AR features:

Feature	Description
Session	Enable, disable, and configure AR on the target platform.
Camera	Render images from device cameras.
Plane detection	Detect and track flat surfaces.
Face tracking	Detect and track human faces.
Ray casts	Cast rays against tracked items.
Anchors	Track arbitrary points in space.
Occlusion	Allow 3D objects to appear in front of or behind objects in physical space.
Bounding Boxes	Detect and track objects as bounding boxes.

Additional OpenXR features

When used with certain OpenXR features from other XR packages, Google's Android XR runtime exhibits unique behaviors, as explained in the following table:

Feature	Description	Unique behavior
Hand tracking (XR Hands)	Detect and track human hands.	Hand Tracking (Android XR)
Hand mesh data	Use hand data for occlusion	Hand mesh data
Foveated rendering (OpenXR)	Optimize rendering on XR devices.	Eye tracking and foveated rendering (Android XR)
Multiview Render Regions (OpenXR)	Optimize rendering to prevent processing on areas of the screen not visible.	Multiview Render Regions (Android XR)
Display Utilities	Get the supported display refresh rates for the device and request a display refresh rate.	Display Utilities (Android XR)
Spacewarp	Use spacewarp to help maintain high frame rates.	Spacewarp (Android XR)

Tip

If your app doesn't use a feature, it's best practice to disable that feature. In some cases doing so may improve your app's performance.