The stopped-clock illusion: vision is suppressed from before each saccade until after it lands, and the gap is backfilled with the image from after the jump stamped with a time from before it — about a tenth of your waking sight, accounted for afterwards. The clock never stops; the seeing does.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and audio-reactive.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.