"Andrew C on Mozilla" <voi### [at] devnull> wrote in message
news:409e0084@news.povray.org...
> Hi folks.
>
> This is supposed to be a an extreme closeup of a small gemstone (a
few
> mm across), set in a gold setting. But it looks nothing like that -
and
> I can't figure out why.
> The stone doesn't look remotely gem-like. Can't figure that out.
It's
> transparent, reflective, and reflective. What am I missing?


Your gemstone needs facets on the back of the stone. Do a Google
search for 'Baguette Cut', 'Emerald Cut', and 'Princess Cut'. You'll
see that your gemstone also needs to be shallower.


> The setting doesn't look like gold. I've fiddled with brilliance,
> specular, roughness, reflection, and turned on metallic (as well as
> conserve_energy). Still doesn't look remotely like metal. Why?

    It looks like gold to me - it's not that bad, try turning the
ambient and reflection up a touch. The tips of your 'prongs' need to
be bent over the stone too.


>
> Also can't figure out why the metal setting apparently isn't
resulting
> in any photons. (It makes the photon process hundreds of times
slower -
> that is, I had to multiply the photon spacing a few hundred times to
get
> it to render this year.)

      No idea.

>
> This was supposed to end up being a single link in a bracelet - but
it
> looks so rubbish I hadn't get that far yet.

   Perseverance!  ;)

    ~Steve~


>
> Any ideas?
> Andrew @ home.
>
>


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