A few days ago, Gene Levine sent over one of the newest 3D creations that he has been working on.  If you stare at this image like you would a normal hidden image stereogram, the spheres will fuse together and appear to be three-dimensional and hovering over the cubical background. (via Gene Levine)

Today’s video will demonstrate how certain visual cues help your brain to create the perception of depth.  Two playing cards are presented, but the one that appears to be furthest away is actually closer to you than the other.