oz42 wrote:WOW

(how does it work??)
There's two ways the brain decodes distance:
1) relative feature distance/movement between the images of left and right eye (stereo vision). Close objects "move" relative to the distant background. Try lookig at your finger and close one eye, then the other.
2) relative motion of features for moving objects. If you rotate around an object, the background moves faster than the object, you rotate around.
If you watch the feet in the last image, you can see the effect (not) working.
Because normal movies already have a degree of 3d depth because of 2) you often find extreme 3d effects with 1) to enhance the 3d-ness.