stbenge wrote:

> It's a mesh stone shape, with many mesh inclusions. Each inclusion is a 
> disc-shaped chip, colored randomly, and given a specular highlight with 
> a metallic value of one to really bring out the color. They were placed 
> randomly. The ones residing inside the stone were rendered, the rest 
> were not.

I was wondering how you could simulate the fire effect that opals have. 
Very tough thing to simulate in CG, if you ask me. I've not attempted 
this, but I have given it some thought.

BTW, I built a nice list of dispersion and IOR values for many types of 
gemstones/minerals. Does anyone think this could be of utility at all?

Post a reply to this message