well ailan is right i can fill a glass of water better with two eyes than with one eye
but thats not cuase i see in stereo but because my eyes do triangulation with wich i know the distance
but this is not an stereo perception, an stereo perception is that that you have in a 3d movie, real life depth perception is based on triangulation as the wiki points
i think i know why i(we?) dont have stereo perception in real life but do in 3d movies
you point it out yourself:
for the projected image to be right YOU HAVE TO LOOK AT THE CENTER OF IT, if you look to a corner of the image the projection now is wrong, even with the cave case(unless you track your eyes and correct the projection according where youre eyes are looking at which i doubt)
so in artificial 3d your simulating the paralax of your eyes fixed which you CANT do in real life(you always cross the rays of the eyes in the object youre looking at)
again i doubt you have real stereo perception in real life according my research
to have stereo percepetion you need an amazing concious control of the near triad as the mayas(eye lens, parallax, iris opening)
this guy has not an eye problem but is setting depth perception on maximum as to look at the stars:
of course i lack that level of stereopsis, i can very slightly cross my eyes, intensifying depth perception, before losing it and start seeing double
the main problem with this is breaking the near triad sync, its very difficult cross the eyes and not lose focus though i can do it each day better
edit:
theres a key point here which backs me up:
if in real life you close one eye you keep seeing the same, if in a 3d movie you close one eyes you lose depth perception TOTALLY
this is so self evident that negating the evidence makes you deluded, a majoritarial delusion, but still deluded nagating reality
edit:
this is how anglienls see( you have to look through it to see it)
thats why theyre invisible, yet you can see them with the corner of your eye
also do you spot why this tank wouldnt be invisible if we had real 3d perception?
the biggest advance in stereoscopy was in wwii where pictures from planes separated km away would be looked in stereo to detect camouflaged airports
how do you fight that invisible tank bs?
well im not designing weapons but its pretty easy to figure out, the same way you would to see an angel, look in stereo