[Bf-committers] [Bf-blender-cvs] SVN commit: /data/svn/bf-blender [13715] trunk/blender/source/blender/src/ drawimage.c: Images in the image editor were being draw with the wrong glBlendFunc() command

[Ton Roosendaal]

Hi,

> Premul is the default result a composition of two images, like the
> AlphaOver node, and it also make the composition quicker, right?
> http://en.wikipedia.org/wiki/Alpha_compositing

Alpha over you can do with both alpha types, premul then is faster.

> What do you mean when writing "composite operations on alpha only"  
> above?

Like calculating new alpha masks, filtering alpha only, etc

-Ton-


>
> Regards,
> Stéphane
>
> _______________________________________________
> Bf-committers mailing list
> Bf-committers at blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers
>
>
>
------------------------------------------------------------------------ 
--
Ton Roosendaal  Blender Foundation ton at blender.org  
http://www.blender.org