User guide

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Control (UI) Default Value Function
R enabled When enabled, affect the red channel of the image.
G enabled When enabled, affect the green channel of the image.
B enabled When enabled, affect the blue channel of the image.
A enabled When enabled, affect the alpha channel of the image.
mix 1 Dissolves between the original image at 0 and the full
premultiplication effect at 1.
Mask
channel A The channel from the out_mask input to use as a mask:
• R - use the red channel as the mask.
• G - use the green channel as the mask.
• B - use the blue channel as the mask.
• A - use the alpha channel as the mask.
By default, the premultiplication is limited to the non-black
areas of the mask.
invert disabled Inverts the use of the mask channel so that the
premultiplication is limited to the non-white areas of the
mask.
fringe disabled When enabled, the mask is modified so that by default the
premultiplication is limited to the fringe (semi-transparent
areas).
alphaChannel A If a separate alpha input is provided, choose which of its
channels to use to premultiply.
If no separate alpha input is provided, the alpha from input
is used and this control is disabled.
4 NODES I-K | IMAGEPREMULTIPLY