Ron Parker wrote:
> 
> On Sun, 13 Jun 1999 23:58:46 -0400, Lummox JR wrote:
> >Zero should produce a very flat surface--but interestingly, it will
> >remove the two-triangle appearance caused by no smoothing at all.
> 
> This is true.  It's because the normal is interpolated (or in this
> case, averaged) across the square, not across the two triangles.
> The triangles end up being rendered with a different normal than
> they actually have.  This is interesting code, but I'm not sure
> whether 'smooth' is the right word for what it does.

Well, I posted it in the povray.programming group as well, touting it as
a possible superpatch addition. Personally, I'd be thrilled if you
decided to throw it in there--it'd save me the work of trying to make
the necessary modifications myself, since I know very little about
working with the source code.

Lummox JR

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