Myron Kruger and his assistant, Katrin Hinrichsen, 'shooting' at each other with computer-generated sparks. Kruger is a pioneer of artificial reality, a method allowing people to interface directly with computers. In Kruger's method, called VideoPlace, the participants stand in front of a backlit screen. A video camera forms an image of their silhouette; the computer is programmed to respond to particular actions in a particular way. Here the computer sees the operators pointing, and interprets this as fire a spark in this direction. The computer-generated image appears in the background here on a large video screen. Model Released (1990)