From Boris FX:
In this week's tutorial, we illustrate how to create a green screen effect using the BCC Chroma Key filter. BCC Chroma Key is used for compositing camera footage shot using a blue, green, or orange screen as a backdrop over a new background video or a still image from a separate file. BCC Chroma Key and other keying and matte filters are included as part of Boris FX 9.1, Boris RED 4.1, and Boris Continuum Complete 5.
Pull a perfect key in minutes!