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In article <slr### [at] fwi com>, ron### [at] povray org
wrote:
> Open mesh surfaces are impossible, but that's because the term
> "inside" has no meaning for one.
A height field is an open mesh surface with an "inside". :-)
Of course, it has a specific definition of "insideness", which I think
is "Any point below the surface".
--
Christopher James Huff
Personal: chr### [at] mac com, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tag povray org, http://tag.povray.org/
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