OpenXR Specification 1.0.26

OpenXR Specification 1.0.26 (2022-11-18)

This release contains some spec clarifications, improvements to tooling, and a
variety of new vendor and multi-vendor extensions.

• Registry
  • Add a warning to XR_COMPOSITION_LAYER_CORRECT_CHROMATIC_ABERRATION_BIT saying
    that it is not in use and planned for deprecation
    (internal MR 2378,
    internal issue 1751)
  • Add new XR_EXT_active_action_set_priority vendor extension.
    (internal MR 2288,
    internal issue 1699)
  • Add new XR_HTC_passthrough vendor extension.
    (internal MR 2349)
  • Add new XR_HTC_foveation vendor extension.
    (internal MR 2377)
  • Add new XR_META_headset_id vendor extension.
    (internal MR 2410)
  • Improve Schematron rules for the registry XML and update the tool version used.
    (internal MR 2418,
    internal MR 2426,
    internal MR 2457,
    internal MR 2460,
    internal MR 2465)
  • Register author ID and reserve vendor extensions for ByteDance.
    (internal MR 2482,
    OpenXR-Docs PR 137)
  • Register author ID for danwillm and reserve vendor extensions.
    (OpenXR-Docs PR 138)
  • Reserve vendor extensions for Microsoft.
    (internal MR 2478)
  • XR_EXTX_overlay: Fix XML markup to correct generated valid usage for the
    event structure.
    (internal MR 2307)
  • XR_EXT_performance_settings: Fix XML markup to correct generated valid usage,
    bump revision.
    (internal MR 2306)
  • XR_HTCX_vive_tracker_interaction: Fix XML markup to correct generated valid
    usage for the event structure.
    (internal MR 2310)
  • XR_HTC_facial_tracking: Update vendor extension to version 2.
    (internal MR 2416)
  • specification/scripts: Added new functionality in codegen scripts to support
    creating single extension headers. Usage: python3 scripts/genxr.py -registry registry/xr.xml -standaloneExtension XR_FB_color_space standalone_header
    (internal MR 2417)
• Specification
  • Clarify the valid swapchain face count values for layer types.
    (internal MR 2354,
    internal issue 1750)
  • Clarify error codes returned in vendor extension XR_META_performance_metrics.
    (internal MR 2422)
  • Clarify function xrEnumerateInstanceExtensionProperties by removing
    conflicting and redundant language about two-call idiom.
    (internal MR 2441)
  • Clarify language around swapchain creation format matching usage.
    (internal MR 2446)
  • Document new XR_EXT_active_action_set_priority vendor extension.
    (internal MR 2288,
    internal issue 1699)
  • Document new XR_HTC_passthrough vendor extension.
    (internal MR 2349)
  • Document new XR_HTC_foveation vendor extension.
    (internal MR 2377)
  • Document new XR_META_headset_id vendor extension.
    (internal MR 2410)
  • Fix naming of member descriptions for XrInputSourceLocalizedNameGetInfo.
    (internal MR 2419,
    internal issue 1614,
    OpenXR-Docs issue 106)
  • Loader spec: Update to note that the Android installable broker no longer checks for
    permission. The permission, normally auto-granted, was removed due to causing
    conflicts with installation order.
    (internal MR 2452,
    internal issue 1836)
  • Move the documentation of XrSwapchainUsageFlags/XrSwapchainUsageFlagBits to
    its usage, next to XrSwapchainCreateFlags, and mark up normative language.
    (internal MR 2435)
  • Move flag bit documentation to the FlagBit type ref pages, and move the
    typedefs for the Flags types into new corresponding flag ref pages. This
    resolves an unneeded inconsistency between core and extensions as well as
    between core and other related specifications like Vulkan.
    (internal MR 2435)
  • Optimize images included in the specification.
    (internal MR 2493)
  • XR_EXT_performance_settings: Updated generated valid usage through XML
    change, bump revision accordingly.
    (internal MR 2306)
  • XR_HTC_facial_tracking: Update vendor extension to fix an error in the blink
    blend shape ranges, increasing its revision to 2.
    (internal MR 2416)
  • XR_KHR_vulkan_enable2 - Add missing member documentation for type, next,
    and createFlags in XrVulkanInstanceCreateInfoKHR
    (internal MR 2435)