Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu
From: blake@ccwf.cc.utexas.edu (Blake Freeburg)
Newsgroups: comp.graphics
Subject: Nurbs in C
Message-ID: <44709@ut-emx.uucp>
Date: 26 Feb 91 06:02:21 GMT
Sender: news@ut-emx.uucp
Reply-To: blake@ccwf.cc.utexas.edu (Blake Freeburg)
Distribution: comp.graphics
Organization: The University of Texas at Austin
Lines: 11

This is to let people know that I had a great amount of success implementing
the "Dynamical Rational B-Spline Surfaces" code presented by David F. Rogers
in Computer-Aided Design.  It is fast enough that a 4th order 40x40 grid 
surface with 100 steps in both parametric directions was generated in <.5 sec.
on an RS/6000 model 530.  On a 25Mhz 386 in protected mode, it took <10 sec.
Good code and ideas to speed it up.  And this was not a result of the fastest
algorithm there - I am limited by space.

Many thanks to David Rogers for pointing me to the code.

Blake Freeburg


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