Cellular automaton snowflake generator in OpenSCAD

cults3d

By default this cellular automaton employs Stephen Wolfram's rule that an unfilled cell becomes filled if it has exactly one filled neighbor, while a filled cell remains unchanged. The rules can be varied and even include indeterministic elements. For example, you can set the probability of generation to 0.5 when there is one neighbor, making the generation parameters 0, 0.5, 0, 0, 0, 0, 0. These patterns appear more intricate and snowflake-like than the defaults, as seen in the light blue image. Another set of interesting generation parameters is 0, 0.5, 0, 0.1, 0, 0, 1, which involves a 0.5 chance of generation with one neighbor, a 0.1 chance with three neighbors, and certainty with six neighbors.