How to use the Set Matte effect on green screen footage without removing the background.
I am currently trying to make it so that, in the green screen footage that I am using, the green screen is gone while the main object is a plain colour. Currently, if I use the 'Set Matte' option that's a part of the colour difference key effect, it will cause the green screen to turn black and the main object to go white, but also cover everything underneath. I would like to have my green screen be replaced by a background and the main object be a different colour. How would I do that?