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Maniphest T32195

MASKS: Canonical Porter Duff algorithm for merge missing.
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Description

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

Event Timeline

Troy Sobotka (sobotka) edited a custom field.Jul 27 2012, 3:40 AM
Troy Sobotka (sobotka) attached 1 file(s): F18370: patch-porterduffmerge.diff.

Previous attempt to apply patch died. It can be removed. This post attaches the patch as a separate step.

Campbell Barton (campbellbarton) added a comment.Jul 28 2012, 1:36 PM

applied 49328. now the default blend mode.

Campbell Barton (campbellbarton) changed the task status from Unknown Status to Resolved.Jul 28 2012, 1:36 PM