Effectively "marching squares" implemented in a single bitmap tile ;) https://graphics.stanford.edu/~mdfisher/MarchingCubes.html https://graphics.stanford.edu/

Effectively "marching squares" implemented in a single bitmap tile ;) https://graphics.stanford.edu/~mdfisher/MarchingCubes.html https://graphics.stanford.edu/~mdfisher/MarchingCubes.html