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From: rboykin@cscsparc.larc.nasa.gov (Rick Boykin)
Newsgroups: comp.graphics
Subject: <None>
Message-ID: <1991May13.215153.4714@news.larc.nasa.gov>
Date: 13 May 91 21:51:53 GMT
Sender: news@news.larc.nasa.gov (USENET Network News)
Organization: NASA Langley Research Center, Hampton, VA  USA
Lines: 15

I hate to post ignorant questions but here goes it.

     Recently I have been involved with the task of calculating
a thickness distribution on faceted (SP) 3-D data. To determine the
thicknesses required I pick a predefined point in 3-space near the model.
Then from that point I start shooting rays radialy outward. So, my question
is to all you raytracers...   Are there available techniques for raytracing
faceted data. Also, this data will be used in radiation calculations where a
high degree of accuracy is desired. ANY information would be greatly
appreciated.


Thanks in advance

-Rick Boykin  rboykin@cscsparc.larc.nasa.gov