I have been trying to create realistic jewels and gold, and here is a
sample of what I have achieved this far. I have tried to make the gold
look ancient, like those pieces of jewelry dug from graves. I am quite
satisfied with the gold but the diamond is not yet what I wanted it to
be. It was better rendered with MegaPov and a bunch of lights, but
changing to POV 3.5 and restrictions set by the rest of the scene made
it look worse.

The gold texture uses the technique discussed earlier in this group: it
has multiple texture layers to make it possible to have highlights of
different color than the other parts of the scene. The diamond just
combines ior, interior, photons, variable reflection and multiple
highlights.

Needles to say that it took several days to render on my Celeron 400.


The gold texture is originally based on iron texture made by JRG,
altought it has been altered so much since, that indentation seems to be
the part that reminds me most about the original one. Radiosity settings
used are originally based on ones posted by Gilles. Thanks to these guys
for sharing their know-how.

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Attachments:
Download 'diamond_ring_0h1.jpg' (20 KB)

Preview of image 'diamond_ring_0h1.jpg'

Very nice.  A simple, elegant ring - the best kind, in my opinion, if it's
going to have a diamond in it.

"Jari Juslin" <zds### [at] ikifi> wrote in message news:3BB### [at] ikifi...
> I have been trying to create realistic jewels and gold, and here is a
> sample of what I have achieved this far. I have tried to make the gold
> look ancient, like those pieces of jewelry dug from graves. I am quite
> satisfied with the gold but the diamond is not yet what I wanted it to
> be. It was better rendered with MegaPov and a bunch of lights, but
> changing to POV 3.5 and restrictions set by the rest of the scene made
> it look worse.
> . . .

Actually, I like the diamond best of all.  The gold, for some reason, just
doesn't seem right.  While the diamond looks like it could be real, the gold
looks... raytraced.  Maybe it's the background.  It looks like you just have
a black sky?  I've always found that adding some color to the parts of the
scene you don't see makes metal look more like metal, after the reflections
are done.  I don't know, it just doesn't look quite right.  But of course, I
mostly just use metals.inc for my metallics, so it could just be my
preference for more reflective metals.

(whew)

Anyway, keep up the good work.

Michael

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