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On Wed, 30 Aug 2000 11:02:08 -0500, Chris Huff wrote:
>In article <slr### [at] fwi com>, ron### [at] povrayorg
>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".
Lots of open surfaces have "insides." Consider, for example, an open cylinder
or a clipped object. But those are a matter of definition and might not do
what you expect them to in CSG.
--
Ron Parker http://www2.fwi.com/~parkerr/traces.html
My opinions. Mine. Not anyone else's.
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