The** BCC Chroma Key** filter is used for compositing camera footage shot
using a blue, green, or red screen as a backdrop over a new background video
or a still image from a separate file.
[To learn more about this filter, and see a breakdown of the various controls,
please click here.](https://www.borisfx.com/helpdocs/?page_id=369 “BCC Chroma
Key Help Documentation” )