> Yeah, and how do you know the normals of those triangles? By
> interpolating between vertex positions (which is the only info
> available to the hf code) or are you using info from the generating
> pattern?

Zeager posted his code in p.b.s-f
The normals are derived from the vertices.

>>How does POV-Ray smooth height_fields?  The results aren't really good in
>>any case.
>What do you expect? It's only a guess at the normals, after all.

That's true, but a good guess, after all.. The native HF should be able to
look as good as Zeager's IMO.

Regards,
Hugo

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