A surface with one side and no edge, which cannot exist in three dimensions without passing through itself — the self-intersection is an artefact of the room, not of the bottle; the immersion rotates on the beat so the false crossing moves and the honest shape shows.
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.