How is CGI used in movies?
In the early days of cinema, special effects were produced as the cameras rolled to create what are called "in-camera effects." To create characters and locations that don't really exist, filmmakers would turn to such tools as stop-motion animation, miniatures and matte paintings, often compositing two images to create the effect of actors and special effects interacting.
The first major instance of CGI occurred with the science fiction film "Westworld" (1973), which used two-dimensional computer graphics to create shots seen from the point of view of a robot killer. The 1976 sequel, "Futureworld," also proved notable for featuring the first i ...more