Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!dg!vis01!mpogue From: mpogue@vis01.dg.com (Mike Pogue) Newsgroups: comp.graphics Subject: Re: how do i rotate around an arbitrary vector in 3D? Message-ID: <1225@dg.dg.com> Date: 17 Dec 90 22:24:55 GMT References: <18733@netcom.UUCP> Sender: root@dg.dg.com Reply-To: mpogue@vis01.dg.com (Mike Pogue) Distribution: usa Organization: Data General Corporation, Research Triangle Park, NC Lines: 8 Use the quaternion approach. It's much simpler, and it falls right out of the math. Try "Graphics Gems" for an intro, and equations. -- Mike Pogue Data General Corp. Speaking for myself, not my company.... Westboro, MA.