MASKS: Canonical Porter Duff algorithm for merge missing.
Closed, ResolvedPublic

In the Masks layers, the canonical Porter Duff algorithm is missing. This attempts to add it.

Alpha.Out = Alpha.A + ( Alpha.B * ( 1 - Alpha.A) )

Porter Duff page 256 of: https://docs.google.com/viewer?url=http%3A%2F%2Fkeithp.com%2F~keithp%2Fporterduff%2Fp253-porter.pdf
sobotka (Troy Sobotka) set Type to Patch.Via Old WorldJul 27 2012, 3:40 AM
Previous attempt to apply patch died. It can be removed. This post attaches the patch as a separate step.
applied 49328. now the default blend mode.
campbellbarton (Campbell Barton) closed this task as "Resolved".Via Old WorldJul 28 2012, 1:36 PM

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