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| Put on your 3-D glasses, because your going to see some 3-D, or lack of 3-D! Judging stereoscopic depth in 3-D images is usually thought of as a very reliable method of depth perception. Here is an example where stereoscopic depth cues fails us miserably. In the anaglyph image above, the nails getting hammered down, will appear at a different depth relative to the bottom nails. Funny thing is, once the nails are hammered down, they all appear to be at the same depth! For more examples try out, Double Nail Illusion Double Nail Illusion with motion Below is a stereopair of the hammering nails illusion. Try to keep your eyes fused on the hammered nail and you might see it's true depth! Back to Gabriel's 3-D Notebook |
| Hammering Down the Double-Nail Illusion! |
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