Chapter 14
Rotoscoping
Rotoscoping is a term that refers to an old piece of machinery called a rotoscope. A rotoscope was a sort of projector that used to allow artists to line up their drawings and tracings with the filmed portions of productions. This is how character generated elements and filmed elements were able to interact on screen with a bit more realism than plain drawings. It also allowed for accurate compositing.
Nowadays, rotoscoping is really just a fancy term for altering a video clip frame by frame. It usually implies some kind of vector painting on video or the creation of a traveling or animated matte. This matte may mask something on the screen, as in the example we’ll use, or it may be used to superimpose objects onto the ...
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