Kinetic — Grid spheres
A wall of rainbow-tinted columns seen face-on; wherever a pointer's sphere hovers, the cells beneath sink flat and pale, carving a crater that follows the hand.
A dense grid of square columns fills the frame, viewed straight down their length so mostly the tinted caps show, hues pooling across the wall in soft noise-shaped patches. Wherever an influence point moves — the mouse by default, tracked hands or an orbiting virtual pointer if enabled — a shaded sphere rides above the surface and the columns beneath it settle flush, opening a stepped crater that glides with the movement.
Each cell measures its distance to the nearest pointer and turns it into a 0-to-1 proximity that eases the box depth between many cells deep and nearly flat, with an overshooting curve that gives the crater a springy rim. The same proximity fades the fill toward transparent — the pale ring around each sphere — and nudges the hue, which otherwise comes from two-dimensional Perlin noise pushed through a rainbow palette. Every enabled input source merges into one flat list of points, so several hands can dent the wall at once.
