1. A method of causing an observer to get a three-dimensional impression of a three-dimensional scene from a two-dimensional representation of that scene, including the steps of monitoring the observer's movements and, depending on these movements, displaying on a screen two-dimensional representations uniquely associated with each body position of the observer, further including the steps of selecting and displaying one from a plurality of two-dimensional images of the entire scene, as a function of the observer's movements relative to one predetermined and coinciding fixation point in the scene, thereby displaying the relative parallactic displacement between all the objects in the scene relative to the coinciding fixation point in the scene.