1. A method for producing a three-dimensional illusion of a subject comprising the steps of: generating at a predetermined frame rate a single sequence of images of said subject as viewed by a camera carried by a moving vehicle spaced from said subject as said vehicle is moved at constant velocity and constant spacing with respect to said subject, and presenting for viewing on a viewing surface alternately at a rate in the range of about four to thirty per second selected successive sets of images in said sequence that have a frame separation therebetween depending on the velocity and spacing of said camera with respect to said subject so as to differ in parallax in the direction of movement of said vehicle by an amount sufficient to create a resultant image which as viewed by an observer is perceived as having depth.