Skip to content


Brief Description

Multiply the Red, Green and Blue channels of the image by its alpha channel. Using this modifier is rarely needed as alpha premultiplication is automatically handled by Autograph. However in certain cases where for example you inject a custom alpha with a Shuffle Modifier, you may need to apply this modifier manually.


Parameter / Script Name Type Default Function
Enabled / enabled Boolean On
Modify Metadata / set_metadata Boolean On If unchecked, the premultiplication metadata of the image stream is left untouched.This can be used to force the alpha premultiplication state
Mask / mask Image -
Mix / mix_with_source Float 1 Dissolves between the original image at 0 and the image with the effect applied at 1