UF4.....One of this weeks homework. The mask layer had to be a diiferent coloring formula than the base layer. Getting the mask just right was a little tricky but I'm happy with the result.
Always remember - Follow the Yellow Brick Road, it will lead you to the Emerald City and OZ A very nice place to repose. Trust me on this one, I live there ............The Lion...................... MY GALLERY - The Magical Mystery Tour
It seems quite different for you, but I like it. It's refreshingly simple with a certain delicate elegance.
I'm not sure, but I think I even might have an inkling of what your description means, though the closest I can come to making sense of it is (fractal rendered in, say, xfractint) + (same fractal except alter colouring formula, rendered in, say, xfractint) -> (open and arrange in Gimp so the second is the mask for the first). Don't know if that's close. (I'm assuming UF4 obviates the need for the importation into Gimp, for example.) Best I can guess. (I like trying to guess what you mean but usually have no clue at all!)