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;

Members

Member Descriptions

Description

Note

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)

  • type must be XR_TYPE_COMPOSITION_LAYER_PROJECTION

  • 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

XrCompositionLayerBaseHeader, XrCompositionLayerFlags, XrCompositionLayerProjectionView, XrSpace, XrStructureType, XrSwapchainSubImage

Document Notes

For more information, see the OpenXR Specification at URL

https://www.khronos.org/registry/openxr/specs/1.0-extensions/html/xrspec.html#XrCompositionLayerProjection

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

Copyright

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