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From: angerhof@esunix.UUCP (Norman Angerhofer)
Newsgroups: comp.graphics
Subject: Re: CSG programs
Message-ID: <369@esunix.UUCP>
Date: Fri, 19-Jun-87 18:06:21 EDT
Article-I.D.: esunix.369
Posted: Fri Jun 19 18:06:21 1987
Date-Received: Tue, 23-Jun-87 04:37:25 EDT
References: <928@lll-lcc.aRpA>
Organization: Evans & Sutherland, Salt Lake City, Utah
Lines: 28
Keywords: Scan Line Solid Modeller, Ray Trace Solid Modeller
Summary: Shoichi Kitaoka ray traced CSG structures at the U. of Utah

In article <928@lll-lcc.aRpA>,  pyle@lll-lcc.aRpA (E. Pyle) writes:
>... Has any[one] also implemented
>a solid modeller using ray tracing?  I am looking for source code.  I have a
>complete ray tracing program I can give in exchange.  The code must be in
>the public domain.  I have an active-edge ray tracer already written for my
>Masters Thesis and I desire to turn it into a solid modeller.

I'm not sure if the source code is still around, but it's worth a shot:

Shoichi Kitaoka did a lot of work a few years ago on ray tracing an
extended CSG structure, including a project in a graphics class and
a Masters thesis entitled "KIT: An Experimental Solid Modelling System."
(June, 1985, University of Utah, Dept. of Computer Science.) One example
of his results is picture #3 on the back cover of the 1985 SIGGRAPH
Proceedings (Computer Graphics, Vol. 19, No. 3, July 1985.)

His current address is:

 Shoichi Kitaoka
 Hitachi Software Engineering Co., Ltd.
 6-81, Onoe-Machi, Naka-ku,
 Yokohama 231, Japan

Maybe someone at the U. of Utah still has some of his code around that
could be copied with his permission.

--Norman Angerhofer, Evans & Sutherland Computer Corp.
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