Hi, "Joao S. O. Bueno" <gwidion@xxxxxxxxxx> writes: > For example, this is the line in current gimp code that does the > "merge mode" : > > sum = src1[b] + src2[b] - 128; > > 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: > ED = E1 + E2 -0.7; , for instance. I don't want to discourage you and it's certainly a nice expert/geek feature but I doubt that the casual GIMP user wants to type in any formulas. Sven
