Re:Hidden 3D
by partiallypro on Thursday August 31, 2023 @04:42AM
(#37334195)
I'm confused? Don't they all require crossing your eyes? I've gone through about 20 on this site and "solved" them by crossing my eyes and locking the patterns together.
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Most of autostereograms are meant to be seen wall-eyed, instead of cross-eyed [0].
With wall-eye, you shift the convergent point being what you're seeing, while with cross-eye you shift it before.
So it creates the exact opposite 3d. Watching a stereogram meant to be seeing wall-eyed, cross-eyeing you'll see an upside down 3d. Some stereogram are mean to be seen cross-eyed though, which is considered easier to see.
Re:Hidden 3D
by anorakoverflow on Thursday August 31, 2023 @05:51AM
(#37334697)
It wont’t turn the image upside down, but the depth will be inverted, so what is meant to jut out at you will become a trough away from you.
"the depth will be inverted" better describes it indeed. Thanks clarifying it!
> With wall-eye, you shift the convergent point being what you're seeing,
Here "being" probably should have said "behind".
https://hidden-3d.com/stereogram_theory.php
Either can look in front or behind.