Hi! i once saw an engine that featured sets for tiling textures. instead of tiling the same texture over and over again, one could define two or more similar textures and then these textures got randomly distributed... for example you could have two different textures for a stone wall (which both seamlessly tile to each other) and the engine would randomly choose between them to avoid apparent repetition! How could one implement that with openGL? and would it be performant? Thanks!

no one an idea?? :(