Are there some canonical algorithms for generating the smooth color lookup tables for copper, especially for the semi-metallic gradients on copperbars? Do you simply move R, G, and B smoothly toward white and back on a sine function to give it the round gradation?
EDIT: Well, I found this, which you most likely all know about:
http://demo-effects.sourceforge.net/I write retro games that need to run on phones so some of the ways of making things look flashy and good have become useful once again. Everything is a circle.