User guide

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Control (UI) Default Value Function

displayWindow Background The frame size to output in the event that the fg and bg inputs

are different sizes:

• Background - output the frame size of the bg input.

• Foreground - output the frame size of the fg input.

• Union - output a combination of the bg and fg inputs' frame

sizes.

• Intersection - output an intersection of the bg and fg inputs'

frame sizes. This restricts the output to the area where the

two frame sizes overlap.

ImageMultiply

This node layers images together using the Multiply compositing algorithm: FB. It multiplies the values of the

foreground by the values of the background. It can be used to composite darker values from the foreground with

the background image - dark gray smoke shot against a white background, for example.

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 bg image at 0 and the full merge effect at

Mask

4 NODES I-K | IMAGEMULTIPLY