Actually, I think it might be possible with the lighting + ramp or just 2 colors (greenish-yellow + dark-blue + yellow light), but I wonder if making the specular look soft instead of hard (or how can I describe it... the surface shouldn't be glossy but more like matte so that the light spreads all over the surface instead) then maybe it will look the way I want it to.Ok I think I know what you're getting at, you want the color to change on the entire surface and not per point. Hmm, that could be simple or really complicated lol. Even if you somehow use the camera's rotation as a driver for the ramp, then the behavior will still be dependent on that camera.