Invisible 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.

> 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.

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