Switch Matte
Description
Similar to the Copy node, but is dedicated to copying a channel from input image 2 to the alpha channel of input image 1.
Node Group
Composite.
Controls
Source
Red
Copies the red channel from input image 2.
Green
Copies the green channel from input image 2.
Blue
Copies the blue channel from input image 2.
Alpha
Copies the alpha channel from input image 2.
Luminance
Uses the average luminance of the RGB channels from input image 2.
Black
Copies black into the red channel.
White
Copies white into the red channel.