C Specification

The XrSystemMarkerTrackingPropertiesANDROID structure is defined as:

// Provided by XR_ANDROID_trackables_marker
typedef struct XrSystemMarkerTrackingPropertiesANDROID {
    XrStructureType    type;
    void*              next;
    XrBool32           supportsMarkerTracking;
    XrBool32           supportsMarkerSizeEstimation;
    uint16_t           maxMarkerCount;
} XrSystemMarkerTrackingPropertiesANDROID;

Members

Member Descriptions

  • type is the XrStructureType of this structure.

  • next is NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.

  • supportsMarkerTracking is an XrBool32 indicating if the current system provides marker tracking capability.

  • supportsMarkerSizeEstimation is an XrBool32 indicating if the current system provides marker size estimation.

  • maxMarkerCount is the maximum number of markers that the runtime is able to track at the same time.

Description

An application can inspect whether the system is capable of marker tracking by extending the XrSystemProperties with XrSystemMarkerTrackingPropertiesANDROID structure when calling xrGetSystemProperties. The runtime must return XR_ERROR_FEATURE_UNSUPPORTED for marker tracker creation if and only if supportsMarkerTracking is XR_FALSE.

If a runtime supports marker tracking, maxMarkerCount must be at least 1.

Valid Usage (Implicit)

See Also

XR_ANDROID_trackables_marker, XrBool32, XrStructureType

Document Notes

For more information, see the OpenXR Specification

This page is extracted from the OpenXR Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2025 The Khronos Group Inc.

This work is licensed under a Creative Commons Attribution 4.0 International License.