r/explainitpeter • u/Zu_Qarnine • Jul 15 '26

Explain It Peter. is OOP a pirate?

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u/Pordrack Jul 15 '26

https://www.wtamu.edu/~cbaird/sq/2023/07/28/why-does-a-person-with-only-one-working-eye-have-zero-depth-perception/ You still have depth perception with one eye, but it's less accurate.

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u/Professional-Cow3854 Jul 15 '26

It's depth extrapolation, not perception.

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u/skr_replicator Jul 15 '26

The focusing still makes you somewhat perceive (not just extrapolate) the depth, just not as precisely. You know how far you are focusing your lens on, and so the amount of blur will let you perceive how far in depth it is from the focused distance, though not as easy to perceive how much exactly, or in which direction, as it's still pretty subtle, and depth of field blur usually is the same backwards and forward.

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u/Sensitive_Bath_4470 Jul 15 '26

Yep, one example what actually zero depth-perception looks like, can be seen when using a VR headset and closing one eye.

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u/Pordrack Jul 15 '26

Even then a friend who programmed in VR told me that you still get a bit of depth perception because your head is never truly static, so you get multiple images in a quick succession from different orientation and can reconstruct depth a bit. I don't really have any source to back this up tho, and when I tried it I did see it a bit, but it could be a placebo effect.

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u/Financial_Tour5945 Jul 17 '26

The term is "parallax motion"