This is a collab project. @k0stya for the engine. READ THIS: I was trying to make a 3D engine with a filled cubes, but it seems that it may take a long while....so I thought it is better if I did used someone else engine. I am also sorry because I didn't remix the collab project, because I was trying to backpack the code but something didn't let me do that, so could you please try to backpack the engine?