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From: Kessells_SR@cc.curtin.edu.au
Newsgroups: comp.graphics
Subject: Ray/patch intersection
Message-ID: <3632.26f78d3f@cc.curtin.edu.au>
Date: 19 Sep 90 07:22:39 GMT
Organization: Curtin University of Technology
Lines: 19

Hi,

	Can someone please tell me where I can find an algorithm for
	finding the intersection of a ray and a Bezier and/or B-Spline
	patch. At the moment my Bezier/ray intersection is approximated
	by aprroximating the Bezier patch with triangles. How accurate is
	such an approximation?


						Thanks

						Paul Vowles

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