

This effect enables you to see the green screen areas that are still visible which couldn’t be seen on the normal setting. This made the image turn into a threshold effect. Then by selecting the drop down tab next to View, I selected Screen Matte. After increasing the Screen Gain it made it all black apart from the faces. Then I Increased the Screen Gain because the green screen was still slightly visible in areas.

Then the keylight options appear and I changed the Screen colour from black to the colour of the green screen on my video by using the sampling tool beside the colour. Then selected Effects > Keying > Keylight (1.2) Firstly I opened up my green screen video up in After Effects.
