@tarheel91: "3D" being what we perceive as 3D, using our eyes. Consider each eye to be a camera, and then the brain processes the differences in the 2D images - and deduces depth and distance from that.
I guess its best illustrated with a non-changing image: the moving tricks don't work, and you get a single flat image that is perceived as 2D. With one image per eye, the brain can still perceive this as a 3D scene with depth.
But anyway... the OP is cool, and should get people interested.
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