XR_EXT_spatial_entities: foundational functionality for representing and interacting with spatial elements in the user’s environment.
XR_EXT_spatial_plane_tracking: detection and spatial tracking of real-world surfaces.
XR_EXT_spatial_marker_tracking: 6 DOF (Degree of Freedom) tracking of visual markers such as QR codes in the environment.
XR_EXT_spatial_anchor: enables precise positioning of virtual content relative to real-world locations.
XR_EXT_spatial_persistence: allows spatial context to persist across application sessions.
XR_EXT_spatial_persistence_operations: advanced management of persistent spatial data.