Bluescreen is the film technique of shooting foreground action against a blue (or sometimes green, in which case the term is 'greenscreen') background, which is then replaced by a separately shot 'background plate' scene by either [optical effects]
? or
digital compositing.
[Petro Vlahos]? was awarded an Academy Award for his development of bluescreen techniques.
"Bluescreen" can also refer to an error message of
Microsoft Windows operating systems, generally called the
Blue Screen of Death.
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