On Tuesday 29 July 2003 1:25 am, Patrick McFarland wrote:
> On 28-Jul-2003, Joao S. O. Bueno wrote:
> > It will be doable by typing:
> > ED = E1 + E2 -0.5;
> >
> > as the custom layer mode. (E stands for "every channel". A is
> > already used for alpha -  I myself dislike the "every", and will
> > accept other suggestions)
> >
> > The advantadges? Even the above formula throws information away -
> > it kees a better average than ADD layer mode. With the custom
> > layer mode, you willbe able to adjust the cnstante factor for
> > every layer on every image.
> > Thus if it is too light, with large white only areas, one will
> > just have to edit the layer mode expression from the above to:
> I have no issues with E. It might also be nice to have YUV
> (independant of the image's mode).
I have implemented R G B,  H S V, and A besides E. BTW, E doesn't 
affect the alpha channel - as the majority o f the fixed combination 
modes do not.


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