From the course: After Effects Compositing: 4 Color Keying
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Complete a three-pass key with core and edge mattes - After Effects Tutorial
From the course: After Effects Compositing: 4 Color Keying
Complete a three-pass key with core and edge mattes
- Having spread a hi-con matte to create this nice blue boundary around my figure to key, I now have the next challenge, which is once it's keyed, to get rid of all the noise and holes that are in the interior. Now, I can do this with the same approach, which is to start with a hi-con matte and then actually shrink it instead of expanding it. To do that, I'm going to turn this back off. Duplicate the layer itself, and I will call that original layer 'gmatte+edge', and then turn that off. Name the layer above it 'cmatte'. On the c-matte layer, I don't need the second instance of Keylight because I'm not going to be adjusting the edge here. I'm going to reset 'Simple-Choker'. This time, I'm going to choke the matte inward. If I go to 'Alpha Channel View', you can see there are a couple of holes already in this matte. If I shrink them out further, they're going to get bigger. I probably will need some other approach here. I would add they're a little flaws in this control in Keylight…
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