Ex Lovers

A word seeds a finite painting. Pigment blooms into a feedback field for exactly fourteen seconds, self-organizing into flat posterized plates — and as it paints, a thin seam opens down the center and slowly pulls the two halves apart.

They shared one field; then a wound ran through it, and each side recoiled from the line. When the fourteen seconds are up, the plate locks: this state, and no other. Type a word for a different pair. (Needs WebGL 2.)