premultiply

hotknife

New member
Where is the equivalent of premultiply in Fusion as found in combustion and A effects when importing computer generated images.

eg. a white ball rendered on a red background, will not composite correctly unless I specify the colour of the background the ball was rendered on.

any help appreciated.
 

Lightwolf

obfuscated SDK hacker
In your merges do an additive merge (make sure you rendered on black).
The loader option will actually pre-multiply an unmultiplied image (which you rarely get out of a render).
Cheers,
Mike
 
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