- New [vr] hand_tracking (default off, Quest only for now): the Quest launcher's Settings > VR and
the headset panel's VR tab, under hand steering. Two XR_EXT_hand_tracking trackers are located
every XR frame: with the controllers held the Quest builds the joints from their touch sensors
(XR_EXT_hand_tracking_data_source's controller source), once they are put down from its
cameras. The trackers exist only while the option and hand steering are on and also serve the
runtime hand mesh; the extensions (plus XR_FB_hand_tracking_aim) are asked for when either is
on at launch.
- Aurora skins the runtime mesh with the joints themselves (tracked pose times inverse bind pose,
no curl, no grip); runtimes with joints but no mesh get a skeleton; non-finite joints put only
that hand back on its grip curl. AuroraCockpitHand carries the 26 seated-frame joints and radii.
- The manifest declares horizonos.permission.HAND_TRACKING (and the deprecated
com.oculus.permission.HAND_TRACKING), both normal permissions with no prompt on a Quest 3, and
oculus.software.handtracking as optional; without it Horizon OS keeps the app controllers-only.
Bare hands then drive khr/simple_controller, so on Android a hand whose squeeze action is
inactive and select active is treated as bare: with the option off it presses nothing but the
menu gesture, is not drawn and feeds no Wii Remote motion.
- Interaction-profile changes and tracker sources are logged. The pure rules (grasp from finger
flexion, bare latch, pinch gate, bare-hand buttons, flick) live in the OpenXR-free
vr/openxr_hand_tracking.h with mkw_vr_hand_tracking_tests; the driving and flick parts are
wired in the next commits. Docs: OPENXR.md, docs/quest-port.md, README.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Introduced a new configuration option for immersive window mode in runtime_config.h.
- Updated the parsing and setting functions to handle the immersive window state.
- Modified the OpenXR backend to support rendering with the immersive window, blending the race view with the surrounding environment.
- Enhanced the settings overlay to allow users to select between immersive, immersive window, and flat screen race views.
- Implemented GPU rendering logic for the immersive window mask, ensuring correct visual output in various rendering paths.
- Added tests to validate the immersive window functionality and its interaction with existing race view settings.
- Eyes render under a VK_EXT_fragment_density_map: full rate around each eye's forward direction,
2x2 then 4x4 pixel blocks towards the edges ([vr] foveation = off|low|medium|high, default off).
XR_FB_foveation cannot help here: the runtime's maps only shape passes drawing into its
swapchain, and the eyes reach it through a copy.
- aurora-main/patches/dawn/aurora_fdm.inc: Dawn enables the extension only on request and for
dynamic rendering, flags every render pipeline, and chains an immutable RG8 map into any pass
whose first color attachment is a view bound to one (ABI: include/aurora/dawn_fdm_abi.h).
- android/Build-QuestDawn.ps1 builds the pinned Dawn revision with those patches for arm64
(dawn-build CI flags, protobuf off) into a cached package; Build-Quest.ps1 links it
(-StockDawn opts out) and AuroraDawnProvider.cmake enables the ABI from its manifest.
- lib/gfx/foveation.hpp generates the maps (32 px per texel, densities 255/127/63); an eye is
foveated only when single_pass_eyes draws it in one render pass. Menus never are.
- Live level from the headset panel's VR tab and the launcher; the launch decides whether the
device has maps. debug.wiicompiled.foveation and debug.wiicompiled.fdm for A/B.
- Tests: Foveation cases in gx_fifo_tests, mkw_vr_config_tests. Docs: OPENXR.md, quest-port.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
iChris4