Orchid XP v8 wrote:
>>>> (Isn't this what the "metallic" keyword in POV-ray does too?)
>>>
>>> Actually the "metallic" keyword affects surface hilights only.
>>
>> There are two 'metallic' keywords - one for highlights, and one for 
>> specular reflection.
> 
> ...there are?? o_O

Metallic in a finish block relates to highlights, metallic in a 
reflection block relates to specular (mirror) reflection. It's in the docs!

Watchit, this is getting dangerously off-off-topic!

>>> Which leads to another question: Do surface hilights really exist? Or 
>>> are they just reflections of the shape of the light source?
>>
>> Yes, and yes.
> 
> Hmm. I see. I think...

They're very blurred reflections of very bright objects - you see 
highlights of anything bright. More unbiased renderers like indigo etc 
don't actually use highlights, you get them for free with the lighting 
model.

:)

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