tarheel91 on 27 February 2010
| shams said: @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. |
But our eyes also calculate depth using rotation. I know that for a fact, but even if I didn't, that optical illusion wouldn't work unless it did. What makes an image 3D is the sensation of depth and nothing else. As soon as the rotation is performed, it remains 3D even if it's not moving. This is because our brain notes the image as 3D and we see it as such as a result. That's why the image in the DS screen still looks 3D even when it stops moving. It's similar to the way our brain will continue patterns through our blind spot.
