KEYLIGHT is an industry-proven blue/green screen keyer. The core algorithm was written by the Computer Film Company and has been refined on scores of films. It is simple to use and is particularly good at tackling reflections, semi-transparent areas and hair. Because spill suppression is built-in, often selecting the screen colour is all you need to do to pull the matte and seat the foreground into the background so it looks photographed rather than composited.