C Specification

The XrSystemFacialExpressionPropertiesML structure is defined as:

// Provided by XR_ML_facial_expression
typedef struct XrSystemFacialExpressionPropertiesML {
    XrStructureType    type;
    void*              next;
    XrBool32           supportsFacialExpression;
} XrSystemFacialExpressionPropertiesML;

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.

  • supportsFacialExpression is an XrBool32, indicating if current system is capable of parsing facial expressions enumerated in XrFacialBlendShapeML

Description

An application can inspect whether the system is capable of parsing facial blend shapes by extending the XrSystemProperties with XrSystemFacialExpressionPropertiesML structure when calling xrGetSystemProperties.

If a runtime returns XR_FALSE for supportsFacialExpression, the runtime must return XR_ERROR_FEATURE_UNSUPPORTED from xrCreateFacialExpressionClientML.

Valid Usage (Implicit)

See Also

XR_ML_facial_expression, XrBool32, XrStructureType, XrSystemProperties, xrGetSystemProperties

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.