Actually, Garree, it was posted here first, and credit goes to Stewer. :) Got a shader that does something cool? Drop on by the P5 Forum at www.runtimedna.com and share it. While you're there, bookmark the node by node thread -- you'll love it...

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)