![]() ![]() It may also be used if the subject is not in front of a green (or blue) screen, or for practical or economic reasons. Chroma key is more often used for this, as it is faster and requires less work, but rotoscopy provides a higher level of accuracy and is often used in conjunction with chroma-keying. In the visual effects industry, rotoscoping is the technique of manually creating a matte for an element on a live-action plate so it may be composited over another background. This device was eventually replaced by computers, but the process is still called rotoscoping. This projection equipment is referred to as a rotoscope, developed by Polish-American animator Max Fleischer, and the result is a rotograph. Originally, animators projected photographed live-action movie images onto a glass panel and traced over the image. Rotoscoping is an animation technique that animators use to trace over motion picture footage, frame by frame, to produce realistic action. The artist is drawing on a transparent easel, onto which the movie projector at the right is beaming an image of a single movie frame. Patent drawing for Max Fleischer's original rotoscope.
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