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iChris4andClaude Opus 5.5
a21e22b605
- 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>