A banded gas world with the spectrum written radially into its rings: bin 0 at the inner edge, bin 63 at the outer, the rings casting a real shadow band across the planet and the planet casting a real shadow across the rings.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and space.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.