SCULPTING WITH PIXELS AND PAINT
The image above is a Stereoscopic Painting - It will become three dimensional if you look at it just the right way - It is called FREE-VIEWING
How does one FREE-VIEW?
Stare at the painting and then cross your eyes so you see three images. Focus on the middle one. Relax your eyes a bit - be patient - you will lock it in like a tractor beam. Once you get it the first time it will becomes much easier. Move your head side to side and the piece will actually turn toward you.
THIS CAN BE UNCOMFORTABLE FOR SOME - ATTEMPT AT OWN RISK
HERE IS A POST FROM soad2K - He is a vision therapist.
He writes: "Everyone can actually do it, some people do have Convergence Insufficiency. But if they do, then they can use their finger or a pointer like a pencil to help achieve the effect"
If they sit approx. 18" from their monitor and then hold their finger 5" away from their face, positioning it between the two painted images focusing on the tip, and then slowly look beyond the pencil, the should see the third image. They can move the finger back or forward find perfect registration - the trick is being able to transition from finger to image. With a bit of practice, anyone has the ability to achieve this.
"If people say they see 4, they are crossing their eyes too much".
Good luck and HAVE FUN!