Screen Balance: This tries to offset issues occurring from unevenly lit background screens.Screen Gain: Controls how much of the screen color is removed.Alpha Bias: Can be used to try and offset issues from color imbalances when unlinked from the Despill Bias.

This can be particularly prevalent in skin tones and around the edges of hair. Despill Bias: This allows you to try and offset 'spill,' where the background has reflected (or 'spilled') onto the subject.Screen Color: As already covered, this creates the matte using the main color of the background.Playing around with the parameters and settings within Keylight can let you adjust how the image is keyed, and iron out issues. Try and avoid shadows behind your subject with your lighting setup (these are harder to remove in Keylight). Any wrinkles or deformities in the green screen behind the subject show up after keying, so get that ironed out if you're using a fabric background!

Also, make sure that your shot is evenly lit and that the color of your subject's clothes doesn't match the background (wearing a green top with a green screen is a huge mistake). Let's jump in and get to grips with Keylight, so you can get the most out of keying your footage.īefore we get started, it's important to note that even with all the tweaking of minutiae in Keylight's settings, if the footage you're working with isn't properly shot, the results will vary.Īs a rule, ensure that your subject is separated as much as possible from your background. But once you get to know exactly how they function, the process becomes a lot simpler. The number of settings the plugin offers can be daunting at first.

Keying out backgrounds using a green or blue screen in After Effects becomes much simpler once you know the core settings of Keylight, the built-in keying plugin.

Keylight 1.2 premiere pro