![]() Rotoscoping is often used in the preparation of garbage mattes for other matte-pulling processes. Rotoscoping in the digital domain is often aided by motion-tracking and onion-skinning software. While blue- and green-screen techniques have made the process of layering subjects in scenes easier, rotoscoping still plays a large role in the production of visual effects imagery. By tracing an object, the moviemaker creates a silhouette (called a matte) that can be used to extract that object from a scene for use on a different background. Rotoscoping has often been used as a tool for visual effects in live-action movies. Technique A modern GIF of a horse's gallop, traced from a series of photographs by Eadweard Muybridge Modern animation of traced images from Eadweard Muybridge's Horse in Motion engraved into twenty metal discs ![]() 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 Rotoscoping 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. Originally, live-action movie images were projected onto a glass panel and traced onto paper. 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. JSTOR ( August 2016) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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