Nothing that will "in" POV-Ray as of version 3.1g, although MegaPoV does
have a 'hf_height_at' and 'trace' and version 3.5 will have the trace at
least. Both ways make it possible to retrieve a point (vector) on the
surface.
I have a feeling you wouldn't get exactly perfect positions but close enough
perhaps.
Bob H.
"Thomas Lake" <tla### [at] home com> wrote in message
news:3b046970@news.povray.org...
> I'm wondering if it is possible to access any of the elevation data that
> pov-ray creates when parsing a height_field. When I say elevation data I
> simply mean all the y components of the triangles
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