"Luke" <Luk### [at] hotmailcom> wrote in message
news:3f14334f@news.povray.org...
>
> "St." <dot### [at] dotcom> wrote in message
news:3f141de8@news.povray.org...
> >
> > "Rafal 'Raf256' Maj" <spa### [at] raf256com> wrote in message
> > news:Xns### [at] 204213191226...
>
> The golds in metals.inc have reflection colours a little less
saturated than
> pigment colours. Is this physically correct?

   I'm no expert with this, but I would say so, yes, as a standard for
PoV-Ray, if that's what you mean. With gold, you really want the
colour to come first before anything else. Most people recognise the
difference between a low carat gold and a high carat gold by it's
colour. I would also say that even though gold can hold a fantastic
reflective polish, not all manufacturing jewellers polish 9ct gold in
the same way, and in some cases, manufacturers will use different
finishes on their jewellery like a matte finish when using the
sand-blasting technique, etc. Same colour gold, different finish.

 > Is it necessary nowadays, with metallic reflection?

    Not quite sure what you mean by this. Is it necessary in general,
or by using PoV? The answer to both, I would say is yes.

    If you missed it the first time, take a look at one of my last
efforts below. I think I've got fairly close to the 18ct yellow gold
colour that I'm happy with, but it could do with a touch more ambient
imo.


http://news.povray.org/povray.binaries.images/30860/219606/H-D.jpg

   ~Steve~


> Luke
>
>
>

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