A live reaction-transport field with nutrient dripped in one site per band. The concentric rings inside each colony are interference between outward diffusion and inward transport — the same mechanism behind Liesegang rings — and are not drawn.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and psychedelic.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.