{"version":"1.0","provider_name":"Rainbow Dash Network","provider_url":"http:\/\/rainbowdash.net\/","type":"link","title":"Alcoholic Beast (drinkingpony)'s status on Thursday, 12-Sep-19 23:43:59 UTC","author_name":"Alcoholic Beast (drinkingpony)","author_url":"http:\/\/rainbowdash.net\/drinkingpony","url":"http:\/\/rainbowdash.net\/notice\/5463918","html":"@scribus<\/span><\/a><\/span> Nonono. Our brain just gets 2 images, both 2d, together with the information of how much the iris has to focus, that gives our brain the illusion that something is far away or near ( because you combine it with knowledge of how things usually are. Which can really work to your detriment in things like http:\/\/rainbowdash.net\/url\/875173<\/a> or https:\/\/youtu.be\/A4QcyW-qTUg?t=31<\/a> )

Optical tricks were actually used in Lord of the Rings quite a bit so they wouldn't have to make use of vertically challenged people much.

But... That is not 3D ! That is just using 2D information filtered through both memories and something you could phraise as 'biological trigonometry'

3D vision would actually be something like looking around a tree, while not moving your head.

So some would call what we have to be 2,5 D ( since we can sense distance with 2D input ). However then video games raise their head and go "EXCUSE ME !!! I am 2,5 D !!!" and muddy the whole issue."}