- In order to see things in 3D each eye must see a slightly different picture.The brain then puts the two pictures together to form one 3D image that has depth to it.
- Since your eyes are about two inches apart, they see the same picture from slightly different angles
- Your brain then correlates these two images in order to gauge distance. This is called binocular vision
- Your brain has the ability to correlate the images it sees in its two eyes even though they are slightly different
- The same scene is projected simultaneously from two different angles in two different colors, red and cyan (or blue or green). Here's where those cool glasses come in -- the colored filters separate the two different images so each image only enters one eye. Your brain puts the two pictures back together and now you're dodging a flying image
