C Specification

The XrSystemFaceTrackingVisemesPropertiesMETA structure is defined as:

// Provided by XR_META_face_tracking_visemes
typedef struct XrSystemFaceTrackingVisemesPropertiesMETA {
    XrStructureType    type;
    void*              next;
    XrBool32           supportsVisemes;
} XrSystemFaceTrackingVisemesPropertiesMETA;

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.

  • supportsVisemes is an XrBool32 specifying if visemes are supported.

Description

An application can inspect whether the system is capable of estimating visemes by extending the XrSystemProperties with XrSystemFaceTrackingVisemesPropertiesMETA structure when calling xrGetSystemProperties.

The runtime must set supportsVisemes to XR_FALSE, if both XrSystemFaceTrackingProperties2FB::supportsVisualFaceTracking and XrSystemFaceTrackingProperties2FB::supportsAudioFaceTracking of XrSystemFaceTrackingProperties2FB are XR_FALSE.

Valid Usage (Implicit)

See Also

XR_META_face_tracking_visemes, 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 2014-2026 The Khronos Group Inc.

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