"Anthony D. Baye" <Sha### [at] spamnomorehotmailcom> wrote:
> I'm trying to create a special effect for a model I'm working on.  The material
> would be a semi-transparent white stone (with falloff) with micro-crystalline
> inclusions that shift color with the angle and perhaps form geometric patterns.

Opal comes to my mind from that description. To achieve that, I would scatter
triangles randomly about the thing. Thrown into, say, ten different mesh
objects, each with its own color hue; full transparency, using only variable,
tinted reflection to make them visible.

Or, to avoid high rendering times due to the reflection, use an aoi pattern
(needs MegaPov; alternatively, slope pattern oriented towards camera might do
the trick) to make sure triangles with a shallow angle of incidence get more
prominent; keep the transmit value high though.

Never tried this really. Just a bunch of ideas.

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