A plane is repeatedly folded over itself, choosing creases either at random, or according to some pattern (like a grid). These creases form the boundaries of the individual textured tiles.
Once the folds are complete, they are undone in reverse order, recreating the original plane. With each unfolding, the orientation of each crease (as a mountain or a valley), and each tile (facing up or down) is recorded as a sequence of 1s and 0s. Tiles are colored and textured according to similarities in these binary sequences, giving rise to subtle symmetries and repetitions.