Smoothing computer-animated motion. An animation is created as a series of still frames that, when projected in sequence at a certain rate (commonly 25 frames per second), provide the illusion of motion. In field animation, a particular frame comprises two fields that are stored separately. Thus, during the animated sequence, the viewer sees 50 half-frames per second rather than 25 whole frames per second. As a result, animated motion appears smoother.
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