OpenXR Specification (Source) 1.0.22

OpenXR Specification 1.0.22 (2022-01-12)

This release features a number of new vendor and multi-vendor extensions, plus a
few extension corrections. There are a few small core specification fixes as
well, including a clarification that going forward, xrBeginFrame is not a
blocking function (which was implied but not explicitly stated).

• Registry
  • Add new XR_FB_render_model vendor extension.
    (internal MR 2117,
    internal MR 2169)
  • Add new XR_HTC_facial_expression vendor extension.
    (internal MR 2120)
  • Add new XR_FB_keyboard_tracking vendor extension.
    (internal MR 2128)
  • Add new XR_EXT_uuid multi-vendor extension.
    (internal MR 2152)
  • Add new XR_FB_passthrough_keyboard_hands vendor extension.
    (internal MR 2162)
  • Add new XR_HTC_vive_focus3_controller_interaction vendor extension.
    (internal MR 2178)
  • Add new XR_ALMALENCE_digital_lens_control vendor extension.
    (OpenXR-Docs PR 104,
    internal issue 1615)
  • Correct winding order for XR_MSFT_hand_tracking_mesh extension to clockwise
    to match runtime behavior.
    (internal MR 2151)
  • Fix typos/naming convention errors in XR_FB_hand_tracking_capsules: rename
    XR_FB_HAND_TRACKING_CAPSULE_POINT_COUNT to
    XR_HAND_TRACKING_CAPSULE_POINT_COUNT_FB and
    XR_FB_HAND_TRACKING_CAPSULE_COUNT to XR_HAND_TRACKING_CAPSULE_COUNT_FB,
    providing the old names as compatibility aliases.
    (internal MR 1547,
    internal issue 1519)
  • Reserve vendor extensions 208 - 299 for Facebook.
    (internal MR 2158)
  • Reserve extension numbers for anticipated multi-vendor extensions.
    (internal MR 2173)
• Specification
  • Clarify that xrBeginFrame is not a blocking function for frame
    synchronization purposes.
    (internal MR 2145)
  • Correct winding order for XR_MSFT_hand_tracking_mesh extension to clockwise
    to match runtime behavior.
    (internal MR 2151)
  • Document new XR_FB_render_model vendor extension.
    (internal MR 2117,
    internal MR 2169)
  • Document new XR_HTC_facial_tracker vendor extension.
    (internal MR 2120)
  • Document new XR_FB_keyboard_tracking vendor extension.
    (internal MR 2128)
  • Document new XR_EXT_uuid multi-vendor extension.
    (internal MR 2152)
  • Document new XR_FB_passthrough_keyboard_hands vendor extension.
    (internal MR 2162)
  • Document new XR_HTC_vive_focus3_controller_interaction vendor extension.
    (internal MR 2178)
  • Document new XR_ALMALENCE_digital_lens_control vendor extension.
    (OpenXR-Docs PR 104,
    internal issue 1615)
  • Fix typos/naming convention errors in XR_FB_hand_tracking_capsules: rename
    XR_FB_HAND_TRACKING_CAPSULE_POINT_COUNT to
    XR_HAND_TRACKING_CAPSULE_POINT_COUNT_FB and
    XR_FB_HAND_TRACKING_CAPSULE_COUNT to XR_HAND_TRACKING_CAPSULE_COUNT_FB,
    providing the old names as compatibility aliases.
    (internal MR 1547,
    internal issue 1519)
  • Semantic paths: Note that "back" (as a button) is an acceptable standard
    identifier: the core specification already includes interaction profiles using
    it, but it was inadvertently omitted from the standard identifier list.
    (internal MR 2166)
  • Update xml consistency script to verify correct application of vendor naming
    rules.
    (internal MR 1547,
    internal issue 1618)
  • Update docs for XR_TYPE_EVENT_DATA_INSTANCE_LOSS_PENDING to specify that
    xrCreateInstance returns XR_ERROR_RUNTIME_UNAVAILABLE as long as it is
    unable to create the instance.
    (internal MR 2149)
  • Update docs for XR_FB_color_space to correct preferred color space for Oculus
    HMDs.
    (internal MR 2155)

This release replaces 1.0.21.