Hand tracking v6 — Slice
Lobbed glowing orbs arc across the frame; a fast enough finger swipe becomes a blade that halves them, and the halves stay sliceable down to crumbs.
Glowing orbs are lobbed up from below and fall back under gravity; the fingertips, ribboned in rainbow with a long streak behind them, slice any orb they cross fast enough, and it splits into two smaller orbs that fly apart along the cut. A tally of slices and misses hangs at the top.
Each tracked point's travel since the previous frame forms a segment, and only segments longer than a speed threshold act as blades — resting fingers cut nothing. A hit orb is replaced by two children pushed along the blade's perpendicular, inheriting its momentum and remaining sliceable down to a minimum size, and the sword streak is just the hand layer fading slowly instead of clearing.
