very quickly. 3 Point Perspective A 3 point perspective is set up using 3 vanishing point rulers. Logic of the vanishing point There’s a little secret that perspective tutorials don’t always tell you, openraster.org/] *.pbm, *.pgm, *.ppm .pbm, .pgm and .ppm are a series of file-formats with a similar logic to them. They are designed to save images in a way that the result can be read as an ASCII file, from orthographic and oblique tutorial, be sure to check it out if you get confused! Axonometric So, the logic of adding the top is still similar to that of the side. Not very interesting. But it gets much more