Architecture

Unity OpenXR: Meta functions as both an OpenXR Feature Group and an AR Foundation provider plug-in.

OpenXR extensions

Meta's OpenXR extensions can be found in the Khronos Group OpenXR Specification.

This package enables support for the following OpenXR extensions in your project:

Extension	Usage	Description
XR_FB_scene_capture	Session	This extension allows an application to request that the system begin capturing information about what is in the environment around the user.
XR_FB_passthrough	Camera	Passthrough is a way to show a user their physical environment in a light-blocking VR headset.
XR_FB_spatial_entity	Anchors, Planes, Bounding boxes	This extension enables applications to use spatial entities to specify world-locked frames of reference. It enables applications to persist the real world location of content over time. All Facebook spatial entity and scene extensions are dependent on this one.
XR_FB_spatial_entity_query	Planes, Bounding boxes, Anchors	This extension enables an application to discover persistent spatial entities in the area and restore them. Using the query system, the application can load persistent spatial entities from storage.
XR_FB_spatial_entity_storage	Planes, Bounding boxes, Anchors	This extension enables spatial entities to be stored and persisted across sessions.
XR_FB_scene	Planes, Bounding boxes	This extension expands on the concept of spatial entities to include a way for a spatial entity to represent rooms, objects, or other boundaries in a scene.
XR_FB_display_refresh_rate	Display Utilities	On platforms that support dynamically adjusting the display refresh rate, application developers may request a specific display refresh rate in order to improve the overall user experience.