From the course: After Effects Apprentice: 12 Tracking and Keying

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Refining the key

Refining the key - After Effects Tutorial

From the course: After Effects Apprentice: 12 Tracking and Keying

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Refining the key

- [Instructor] I had a good basic key in the previous movie, the next thing I want to do is refine this key, particularly in the context of the background. So in this case, I'm going to turn my background movie back on and now the brightness of the background really shows up in the edge issues I have in this video. Area's like this person's collar have a bit of a dark edge I don't really like, this is a case where I've reduced Clip White too low. I've extended out to the opaque area too far to pick up part of the background. So hold down Command on Mac or CTRL on Windows and slightly increase this value back towards this default to reduce some harshness of some of those edges. So now I've reduced some of the harshness around the collar. The other parameter that's worth playing with is the Screen Softness. How feathered or soft the edges are around this actor. In this case, where he's close, I expect to have a fairly sharp edge around the actor. So a low value is a good idea. However…

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