On Dec 15, 2011 11:50 PM, "Bartek Skorupa" <[email protected]> wrote: > > Re wiki page: When explaining math behind mixing "Over" image with > background (straight alpha) it should be: [(Over.RGB * Over.Alpha) + > (Background.RGB * (1 - Over.Alpha))]. > Formula at the page is: [(Over.RGB * Over.Alpha) + Background.RGB]. > Shouldn't it be corrected? >
Yes. It was my oopsie in a hasty attempt to illustrate that premultiplied alpha actually changes the over operation. It allows for luminescent additive pixels with an alpha of zero. I will try to fix it from my phone. _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
