You can do it in another way to, you make 2 pictures, one is for the left eye, and one for the right, and you make the left picture at one point, and the right picture 5/6cm to the right (same as space between eyes) and then you make on picture blue, one picture red (can be done in other ways) and put them together in a special program, grab yourself some 3D glasses, and voilá!