Using KeyLight in After Effects Andrew Devis demonstrates techniques for pulling keys in After Effects using multi layer keying techniques in this , the first part of a 4 part tutorial. check out the Pulling a Basic Key in After Effects Using Multi Layer Keying tutorial here.
From the tutorial description: “In this first of 4 tutorials on basic multi-layer keying in Adobe After Effects using Keylight 1.2, Andrew Devis starts by showing how and explaining why you might need a garbage matte for most keying work and what considerations are important for such a matte. Andrew then goes on to show how to pull a basic key and then modify that key to ensure that you don’t over-smooth your end results, finally viewing the keyed footage with a bright image behind to test the key.”
