C Specification

The XrFaceExpressionInfoFB structure describes the information to obtain facial expression.

// Provided by XR_FB_face_tracking
typedef struct XrFaceExpressionInfoFB {
    XrStructureType    type;
    const void*        next;
    XrTime             time;
} XrFaceExpressionInfoFB;

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.

  • time is an XrTime at which the facial expression weights are requested.

Description

Callers should request a time equal to the predicted display time for the rendered frame. The system will employ appropriate modeling to provide expressions for this time.

Valid Usage (Implicit)

See Also

XR_FB_face_tracking, XrStructureType, XrTime, xrGetFaceExpressionWeightsFB

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.