Movie viewers know that an actor cannot swing like a spider from a skyscraper or converse with an animated rabbit, but visual-effects artists make such scenes believable. The technique they exploit is the matte process--commonly called blue screen or green screen for films and chroma-key for television.
From: www.sciam.com
Scientific American Magazine: Leap of Faith: Blue Screens Explained
Posted by Ruslan Abuzant at 10:26 PM
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