blendColor that doesn't need additional setup code

Ingo Klöcker kloecker at
Tue May 29 22:48:41 BST 2007

On Tuesday 29 May 2007 09:23, Thomas Zander wrote:
> On Tuesday 29 May 2007 02:28:09 Aaron J. Seigo wrote:
> > does that make sense? =)
> Well, it confirms quite well what I said a couple of days ago;
> Ingo, you and Andreas all have different solutions for what to do
> with the alpha channel.
> Ingo even had an if/then solution in there to make the blending
> behave conceptually different depending on wheather there is an alpha
> channel set at all.

In fact, the if/then is just there to prevent a division by 0 and is the 
continuation of the case of identical non-zero alpha channels.

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