- Enjoy the illusion of rotations differing from center to periphery (which of course are the same), and some other neat things. When you're done, press space to show/hide the Animation slider : 0 stops the rotation and you can then play with the arrow keys to fully see which object was rotating all along. A/Z keys to zoom In/Out.
An accidental result of my tests with a homemade 3D engine (hence the overly complicated code for what it does). Thought I might share it since I find it pretty nice.