On Tue, 30 Nov 2004 13:25:16 +1300, Joseph Heled <pepster@xxxxxxxxxxxxxxxxxxxxx> wrote: > > (I think this has been discussed on the list before, but not sure where/when.) > > What is the best way to achieve the following functionality - > > Given two layers L1 and L2, I want L2 limited by it's distance from L1 > > Result <- L1 - MIN( MAX(L1 - L2), -20), 20) > > Options: > A. Write a plugin > B. Write it as a script-fu (not sure if script-fu can iterate on pixels, and > what is the speed implication). And I hate scheme. > C. Write it in python fu if I can compile it, but even though it is probably not > as universally available as scrip-fu. Can I iterate over an image in python-fu? > D. I know I can do it with 5 layers and overlay modes. write this as a > script-fu. Not elegant and requires loads of memory for large images. E. extend gluas to be able to pick an auxiliary drawable for additional pixel sources, (essentially resurrecting some code I initially had in a different version of gluas, and write the expression in gluas). ( gluas is at http://pippin.gimp.org/plug-ins/gluas/ ) /pippin -- Software patents hinder progress | http://swpat.ffii.org/ Web : http://pippin.gimp.org/
