C Specification

Specify the kind of passthrough behavior the layer provides.

typedef enum XrPassthroughLayerPurposeFB {
    XR_PASSTHROUGH_LAYER_PURPOSE_RECONSTRUCTION_FB = 0,
    XR_PASSTHROUGH_LAYER_PURPOSE_PROJECTED_FB = 1,
  // Provided by XR_FB_passthrough_keyboard_hands
    XR_PASSTHROUGH_LAYER_PURPOSE_TRACKED_KEYBOARD_HANDS_FB = 1000203001,
  // Provided by XR_FB_passthrough_keyboard_hands
    XR_PASSTHROUGH_LAYER_PURPOSE_TRACKED_KEYBOARD_MASKED_HANDS_FB = 1000203002,
    XR_PASSTHROUGH_LAYER_PURPOSE_MAX_ENUM_FB = 0x7FFFFFFF
} XrPassthroughLayerPurposeFB;

Description

Enumerant Descriptions

  • XR_PASSTHROUGH_LAYER_PURPOSE_RECONSTRUCTION_FB  — Reconstruction passthrough (full screen environment)

  • XR_PASSTHROUGH_LAYER_PURPOSE_PROJECTED_FB  — Projected passthrough (using a custom surface)

  • XR_PASSTHROUGH_LAYER_PURPOSE_TRACKED_KEYBOARD_HANDS_FB  — Passthrough layer purpose for keyboard hands presence. (Added by the XR_FB_passthrough_keyboard_hands extension)

  • XR_PASSTHROUGH_LAYER_PURPOSE_TRACKED_KEYBOARD_MASKED_HANDS_FB  — Passthrough layer purpose for keyboard hands presence with keyboard masked hand transitions (i.e passthrough hands rendered only when they are over the keyboard). (Added by the XR_FB_passthrough_keyboard_hands extension)

See Also

XrPassthroughLayerCreateInfoFB

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.