I always see wave function collape used on squares/cubes with constant size. Are other applications possible, for example with triangularization or Voronoi diagrams?
There's nothing stopping you from using it on all sorts of wild-shaped grids. E.g. the townscaper grid isn't a rectangular grid at all. It only happens to use squareish cells. IIRC it's a distorted subdivision of a hexagonal grid.
As soon as your model has nodes and edges you can use wave function collapse on it. Your grid doesn't even need to have every cell be the same shape. Square(ish) cells just happen to be easy to design graphics for.
