The user, 2026-10-15: right clicks were hard and the dot kept going away.
The laser's "ready" gate now opens with the thumb near the index or the
middle tip, so a middle pinch (right click) or a three-finger pinch has a
laser to aim with. A middle pinch's aim lock follows the thumb to middle
distance.
A three-finger pinch (thumb on the index and middle tips, the gaze
scroll's POINTER_GAZE_SCROLL_GAP) on the ray scrolls as the hand moves and
never clicks, whichever finger ft-hands calls it, at the begin or joining
before the press went out. A middle tap's first POINTER_RAY_TAP scrolls
only past 1.5 cm, so a right click that wobbles still clicks (two of the
day's turned into scrolls).
Grab that's claim skipped a thumb on the middle tip, so a middle pinch
from a hand held out (the ray's pose) looked like the fist closing and
was left to ft-screens (13 of the day's middle pinches). It now needs the
thumb off both tips; the user's flag keeps it 3.5 cm or more from the
middle tip as the fist closes, and still fires twice.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Live test 2026-10-09: taps took several tries and the laser jumped between
hands. The owner's ray dropping for a moment (closing the fingers turns the
hand) handed the laser to the other raised hand at once, for good; a pinch
by the other hand pressed where the old owner's ray pointed; a pinch whose
ray had just dropped became a press at a stale spot, or only woke the
pointer.
- The owner keeps the laser through POINTER_RAY_GRACE (0.5 s) of its ray
being down; the other hand takes it by pinching, by raising its ray while
the owner's is down, or after the grace (pointer/helper/rayowner.h).
- A pinch on a ray that dropped within the grace, or is on its way up,
brings it back (fh_ray.h ShowForPinch) and is a ray pinch.
- Aim lock: the press goes along the ray from just before the fingers
began to close, after a pose along it has gone out; a tap that ends
before its press clicks there too.
- Each ray follows one tracked hand through a brief flip of ft-hands'
left/right call.
- Log: owner changes with the reason, the owner's ray down and back, and
one line per pinch saying what it clicked or why not.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
