This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
Depth perception allows us to see the world in three dimensions and to judge the distance and movement between objects and ourselves. Light rays enter the pupil and land on the retina, forming two-dimensional images. The brain processes these images and interprets them as a three-dimensional representation of the world around us.
My point: we see in 2d. But interpret the picture as 3d.
you see in 2d. i have both my eyes still.
You too see in 2d:
https://www.allaboutvision.com/eye-care/eye-anatomy/depth-perception/