The Rosensweig instability in chrome: a magnetic liquid erupting into the hexagonal array of cones a real one forms, below threshold a flat mirror and above it a field of spikes. Shaded as reflection with a Fresnel that keeps the facing surfaces black.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and ferrofluid.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.