pyle@lll-lcc.UUCP (06/18/87)
Has anyone implemented a scan-line solid modelling program similar to the one presented in "A Scan-Line Hidden Surface Removal Procedure for Constructive Solid Geometry", Pete Atherton, SIGGRAPH, July 1983? Has any 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. Thanks, Ernie Pyle
angerhof@esunix.UUCP (Norman Angerhofer) (06/20/87)
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. ...{decvax,ucbvax}!decwrl!esunix!angerhof