I am looking for a method, be it in Blender or GIMP, to clone-brush from 2 or more layers at the same time AND when I paint, it will paint the many layers on new layers.
Lets say I have a seamless texture with a Color, Normal and Specular.
Now I want to clone-brush from the color, and when I do this, it also copies the Normal and Specular and place the new cloned brushes on their own layers.
This way I don’t have to make a new bump-map for my new texture. It “automatically” makes my new texture with a Normal and Specular if my clone-texture has these bump-maps already!
Where can I do this, and how?