Straight3d is a 3d modelling sculpting program with cubes. This program is designed for 3d modelling where you can sculpt with cubes. It programmed so you could rubix and colour individual cubes. It uses a rubix of cubes which you can add or remove from your sculpture to puzzle your .obj file which you want to export. Saving your sculpture also has a autosave function every minute including a backup incase you computer crashes.. It has been programmed so you can enjoy sculpting without worry.