Last update for the year 2014. Its a gold paint on cast iron kind of shader.

Searched through some reference and came upon this buddha statue reference. In the beginning it took quite awhile to figure out whats the base material like that is used to create the buddha. It looks like cast iron thats a little rusty on the surface. More likely to be oxidize for quite awhile. And from the reference, it looks like the buddha statue was coated in gold before. However some paint has been worn off and revealing the base material which is cast iron.

So first shader created was the cast iron shader. And followed by the gold paint shader.

And then blend this two shader together with a mask.

Theres two specular created for this shader. One was to control a more glossier specular on the gold paint area. Which is colored in orange as theres some of it in the reference. And another tighter specular on the material itself.

To achieve dual specular effect in Vray, i used vrayblendmtl and turning “Additive (shellac) mode” on. An error message will prompt saying that by doing so it will break the energy preservation law. Meaning it will go against the physical material law assuming. There was another spot light placed on screen left just to test the dual specular is working as seen in the final render.

Till then 🙂