The Marching Cubes triangle lookup table is a 3D Wang-tileset for corner connections, reduced for symmetries. Here is a 2D example of a Wang tileset [0]. [0]

The Marching Cubes triangle lookup table is a 3D Wang-tileset for corner connections, reduced for symmetries. Here is a 2D example of a Wang tileset [0]. [0] http://www.cr31.co.uk/stagecast/wang/2corn.html http://www.cr31.co.uk/stagecast/wang/2corn.html Edit: the defining quality of a Wang tileset is that it can tesselate a grid of N different colors with square tiles. Usually there are only two colors (with Marching Cubes inside and outside) because the number of tiles needed grows fast with N.