Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!mordor!sri-spam!ames!eos!aurora!labrea!csli!rustcat
From: rustcat@csli.STANFORD.EDU (Vallury Prabhakar)
Newsgroups: comp.graphics
Subject: Re: Defining a sphere with Bezier patches
Message-ID: <3150@csli.STANFORD.EDU>
Date: 29 Mar 88 02:00:20 GMT
References: <2390@saturn.ucsc.edu> <1632@pixar.UUCP> <1639@pixar.UUCP>
Reply-To: rustcat@csli.UUCP (Vallury Prabhakar)
Organization: Yonder, the Apocalyptic Horizons
Lines: 9
Keywords: sphere, Bezier, REYES


It seems to me that using Bezier patches to generate a spherical surface
is a rather inefficient method.  A sphere can easily be generated as a
surface of revolution.  Simply rotate a circular arc about an axis.  The
arc itself can be generated using Bezier or any other parametric cubic
approximation. I think Michael Mortenson discusses this in his book
"Geometric Modelling".

						-- Vallury Prabhakar
						-- rustcat@cnc-sun.stanford.edu