OpenXR Specification (Source) 1.0.15

OpenXR Specification 1.0.15 (2021-04-13)

This release contains three new vendor extensions plus an assortment of small
spec fixes.

• Registry
  • Add XR_VARJO_foveated_rendering vendor extension.
    (internal MR 1981)
  • Add XR_VARJO_composition_layer_depth_test vendor extension.
    (internal MR 1998)
  • Add XR_VARJO_environment_depth_estimation vendor extension.
    (internal MR 1998)
  • Add uint16_t to openxr_platform_defines (and associated scripts) so it may
    be used easily by extensions.
    (internal MR 2017)
  • Reserve extension 149 for working group use.
    (internal MR 1999)
  • Reserve extension numbers 150 to 155 for ULTRALEAP extensions
    (internal MR 2006)
  • Reserve extension numbers 156-165 for Facebook.
    (internal MR 2018)
• Specification
  • Add note to recommend joint names for hand skeletons when using
    XR_EXT_hand_tracking
    (internal MR 1959,
    OpenXR-SDK-Source/#223)
  • Added anchor to the spec of grip pose and aim pose for easy linking to their
    definitions.
    (internal MR 2016)
  • Clarify runtime behavior on providing wrong type of images to
    xrEnumerateSwapchainImages.
    (internal MR 2000,
    internal issue 1512,
    OpenXR-Docs/#68)
  • Correct function parameter documentation in XR_EXT_conformance_automation.
    (internal MR 2003,
    internal issue 1445,
    OpenXR-Docs/#60)
  • Document new XR_VARJO_foveated_rendering vendor extension.
    (internal MR 1981)
  • Document new XR_VARJO_composition_layer_depth_test vendor extension.
    (internal MR 1998)
  • Document new XR_VARJO_environment_depth_estimation vendor extension.
    (internal MR 1998)
  • Fix generated valid usage language for xrGetVulkanInstanceExtensionsKHR and
    xrGetVulkanDeviceExtensionsKHR, and fix minor vulkan_enable2 typo.
    (internal MR 2002,
    internal issue 1515,
    OpenXR-Docs/#77)
  • Fix sample code in XR_EXT_hand_tracking to show proper retrieval of function
    pointers.
    (internal MR 2019)
  • Fix sample code in XR_EXT_performance_settings to show proper retrieval of
    function pointers.
    (internal MR 2019)
  • Fix sample code callouts in XR_EXT_performance_settings that were broken by
    reflow.
    (internal MR 2019)
  • Fix sample code in XR_MSFT_hand_tracking_mesh to show proper retrieval of
    function pointers.
    (internal MR 2019)
  • Remove language about display time synchronization for EXTX_overlay
    (internal MR 1951)
  • Reword the description for xrAttachSessionActionSets.
    (internal MR 1986)
  • Specify interpretation of premultiplied alpha color when alpha is zero.
    (internal MR 1971)
  • Specify that rules for extension revisions compatibility requirements do not
    apply to experimental extensions.
    (internal MR 1992)
  • Update reflow.py so it does not reflow source code callout annotations.
    (internal MR 2019)
  • Update reflow.py so it does not break directives to include an image.
    (internal MR 2019)
  • Vulkan extensions: Specify expected mapping of swapchain image flags to Vulkan
    equivalents.
    (internal MR 1966,
    internal issue 1500)