C Specification

The XrCompositionLayerProjection structure is defined as:

typedef struct XrCompositionLayerProjection {
    XrStructureType                            type;
    const void* XR_MAY_ALIAS                   next;
    XrCompositionLayerFlags                    layerFlags;
    XrSpace                                    space;
    uint32_t                                   viewCount;
    const XrCompositionLayerProjectionView*    views;
} XrCompositionLayerProjection;


Member Descriptions



Because a runtime may reproject the layer over time, a projection layer should specify an XrSpace in which to maximize stability of the layer content. For example, a projection layer containing world-locked content should use a XrSpace which is also world-locked, such as the LOCAL or STAGE reference spaces. In the case that the projection layer should be head-locked, such as a heads up display, the VIEW reference space would provide the highest quality layer reprojection.

Valid Usage (Implicit)

  • next must be NULL

  • layerFlags must be 0 or a valid combination of XrCompositionLayerFlagBits values

  • space must be a valid XrSpace handle

  • viewCount must be a valid uint32_t value

  • views must be a pointer to an array of viewCount valid XrCompositionLayerProjectionView structures

  • viewCount must be greater than 0

See Also

Document Notes

For more information, see the OpenXR Specification at URL

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

Copyright (c) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.