It's less 3D than you think...
How much of what you see as 3D requires two eyes?
Try this experiment.
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| Photo by D Sharon Pruitt |
- Face your monitor.
- For the remainder of this experiment do not move your head.
- Close your left eye.
- Point your left finger at leftmost object you can see and leave it pointing there.
- Open your left eye.
- Close your right eye.
- Point your right finger at the rightmost object you can see and leave it there.
- Open your right eye.
Now don't move your head. You can, however, move your eyes as much as you like.
Only the area between your fingers can use stereopsis (stereoscopic based depth cues). The rest of your field of view relies entirely on monocular cues (of which there are about 11).
In short, people with only one eye do perceive depth - literally - their brains just rely more on the other cues.Unconvinced? Cue 'parallax'.
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| By Jushua Heineman via TechFresh |
