Re:Hidden 3D
by LeoPanthera on Thursday August 31, 2023 @02:44AM
(#37333343)
This was a huge trend in the 90s that I missed out on, because for some reason I can only see the cross-eye versions, but all the books and posters you could buy were the straight-eye versions.
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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.
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.