Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!liberte From: liberte@ncsa.uiuc.edu (Daniel LaLiberte) Newsgroups: comp.graphics.visualization Subject: Re: Marching Cubes Message-ID: Date: 25 Apr 91 22:37:12 GMT References: <3871@texsun.Central.Sun.COM> <1991Apr24.211855.11705@rice.edu> <1991Apr25.005705.16988@jarvis.csri.toronto.edu> <2551@lee.SEAS.UCLA.EDU> Sender: usenet@ux1.cso.uiuc.edu (News) Followup-To: comp.graphics.visualization Distribution: na Organization: University of Illinois, Urbana-Champaign, NCSA Lines: 10 In-Reply-To: payne@hyperion.loni.ucla.edu's message of 25 Apr 91 19: 00:49 GMT I implemented a marching cubes algorithm which decomposes each cube into 5 tetrahedrons. As Bradley Payne says, there are no ambiguities. My implementation is public domain (but I dont know whether it is different enough from the patented marching cubes algorithm to not infringe). You can get the code from NCSA DataSlice by anonymous ftp to ftp.ncsa.uiuc.edu. Dan LaLiberte National Center for Supercomputing Applications liberte@ncsa.uiuc.edu