Cellular Automata Cube

Cubes.io: Conways Game of Life als 3D-Spielzeug mit Cubes und Spheres und Schnickschnack als Evolution-Nullpunkt, von wo aus die ganzen Automata im dreidimensionalen Raum mutieren. (via @reaktorplayer)

This tool explores what are called three dimensional (3D) "totalistic" cellular automata. The state of a cell going forward depends on its present state and that of its six neighbor cells: north, south, east, west, above, and below. The set of "rules of evolution" specify which configurations turn a cell on and which turn it off. The initial state of the lattice greatly impacts its future evolution.

Experiment with starting with a hollow cube or a solid sphere to see how a rule of evolution reacts. This app can simulate over a trillion trillion trillion different rulesets across tens of thousands of cubic cells.