What he is suggesting is to invert the color value, so white becomes black, and black areas become white, so that the bumpmap will take a different height field to achieve the "inverse" effect.. I have tried it before but do not quite like the result.. IMHO, the PS Lighting effects did it more "politically correct". If you press the "inverse bumpmap" there, the effect is different from the "Invert" Bump Map in Gimp.. Just try it out yourself and see if you agree... don't ask me to explain, I can't .. ;-) re, lasm gallery -> http://gug.sunsite.dk/gallery.php?artist=41 --- In gimp-developer@xxxx, Jens Lautenbacher <jtl@xxxx> wrote: > On 28 Jan 2001 17:20:39 +0100, Rebecca J. Walter wrote: > > what if you color invert the one you use as the bump map? > > if you use same layer, then duplicate, color invert, and use the > > inverted to bump the regular. > > Sorry? > I still don't see what this is about. the bumpmap layer used internally > in the case of a non graya layer is still only the grayscale value of > the layer. color inverting the bm-layer and using this result as the bm > may produce something, but why should this be more correct than using > the "invert" button in the bm plugin? > > but maybe I just don't understand what you want to do correctly. > > > jtl
