How to Create a "Dynamic" Garbage (Out) Matte in Nuke ...
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Dynamic Core Key Video:
• How to Create a Dynamic Core ("In") M...
Garbage-matting is pretty much an essential step if you want to get a solid green screen / blue screen key.
What a lot of people might not know, though, is that it doesn't need to be created & keyframed by hand.
Check out this video for a quick-and-easy way to create a dynamically-updating garbage matte...and then get to keying! :)