Files
Frametop--frametop/pointer
DeeJanuzandClaude Opus 5.5 5d96d211ec Pointer: the hand ray drives ft_pointer; ray pinch, push and pull
With POINTER_HANDS=1 and POINTER_HAND_RAY=1 (design sections 2, 5):
- Per side, each hands frame goes through fh_ray's gate; the first ray up
  drives the pointer (a pinch by the other hand's ray takes it). It wakes
  the pointer and claims the laser unless a controller pressed within 2 s.
  The mouse takes the pointer back; the ray returns after 1 s of no mouse.
- The pose is the ray's origin and direction (a visible beam); our dot only
  where it meets a panel, no catcher in free space. A controller taking
  the laser hides our dot until a ray pinch claims it back.
- A ray pinch is the left button, 30 ms after a claim it had to make;
  the direction holds until POINTER_RAY_DEADZONE (2.5 deg), then drags.
  A middle pinch (fh_gestures v3) is a right click, or scrolling when
  held and moved. Gaze pinches and grips are unchanged with the ray down.
- Push and pull while carrying (POINTER_RAY_PUSH): the origin moves along
  the ray, distance d0 (h/h0)^3.
- ft-screens' "near <capture_ns> <L> <R>": a gesture waits for the report
  on its frame (60 ms at most) and is left to ft-screens if near.
- The ray lets go of a pointer it woke POINTER_RAY_RELEASE after it went;
  at once when its side's controller is in use or in a game.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 21:47:53 -06:00
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