im in the process of designing a room that has some bismuth furniture
but idk how to go about the material for it there is 2 diff textures i wanna do
that one were its mainly silver but theres the shine of another and
and this one thats a cluster of rainbow goodness
I was reading a post about this on the Corona Renderer forums, not sure if it will help you but it may give you some ideas.
Something like that? Make a texture with rainbow colors and use some kind of abstract normal map. Its not physical realistic but its concept is good enough to give you some ideas. 
where did you get that rainbow texture? i cant seem to find it
Looks like it was made by the poster.
You can make pretty much any kind of coloured gradient in Photoshop / GIMP.
works amazingly omg your a life saver
takes 2 seconds with gimp gradient tool
