stereoscopic vision; stereopsis
Physiology term for depth perception through binocular vision.
When you can see in 3D, movies feel more realistic.
視差 (parallax) is the difference in the apparent position of an object viewed along two different lines of sight, a key mechanism underlying 立体視.
Compound of 立体 (りったい, 'three-dimensional') and 視 (し, 'vision').