Using Channels as Mattes in Blender
A short video explaining how to use the RGB channels of an image or video as a matte for visual effects work. I get lots of emails asking about this process, hopefully this helps explain it.
This is for Blender. I also show how to do the exact same thing in Natron in another video.
See the full post here:
https://openvisualfx.com/2020/08/30/u...