in Bryce's Materials Composer
without even using a Terrain even
Cloisonné (Rhymes with Poison Way) is the antique art of bending and soldering fine wires to sheets of copper or bronze in decorative patterns and then filling those with melted enamel glass in a kiln firing. The dictionary says it this way:
"Enamelware in which colored areas are separated by thin metal bands."
which uses less words.
Let's look at a real example
In Medieval Latin the word claus(us) means enclosed place. Hence claustrophobia: fear of the Saint of small enclosed spaces, Santa Clause. More accurately in our case from the Middle English "cloistre" confined, secluded, or partitioned.
To see another sample of real cloisonné and link to a server in Malaysia
Image is from a terrific clip art collection called ArtPatturn from ArtMedia, Inc. out of Taiwan. Their web link has died however... I got mine from Publishers Toolbox How to do this? Do a blur of the B&W Alpha channel. Then "command M" to bring up "Curves". Make a gentle curve which will become the curve of the glazes viscosity This has however been converted to a GIF with only one sixteenth of it previous gray range. can't tell, can you?
Here is the B&W channel used to drive both bump and peculiarity. Look closely; it is not just a B&W image. There is a faint black glow atround the black lines. This gives the bump it's rounding or "viscosity" information.
as we can see in the screen below that everything comes from texture Column "A" - which is set to: The PICT (above) which resides in the Picture Library with it's mask (above).
it's a fairly unremarkable setting in the MC. I made the Specular Color yellow and drove it right through the mask channel, yet I completely ignored specular coefficients which could have added a variegated shift in hue modulated by the angle of refraction calculated through the bump influence as per the sun angle. But that was just too fussy.
Can you imagine which mapping method is used here?
I settled on Reflection Map which worked best.
Scientific Anecdote from my brother Robin, the jeweler:
"In order to make your piece interesting you have the enamel dropping down away from the cloisons. That is usually a sign of inexpensive, or unfinished cloisonné. The good stuff is all ground flat and polished to a smooth surface. However, that smooth surface would look cheap and boring in a computer image. Some kind of irony there I think. :-) "
He's right