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From: blbates@AERO4.LARC.NASA.GOV ("Brent L. Bates AAD/TAB MS294 x42854")
Newsgroups: comp.sys.sgi
Subject: Re:  Use lookat or redraw?
Message-ID: <8910121558.AA00235@aero4.larc.nasa.gov>
Date: 12 Oct 89 12:58:09 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15


   I am not sure what you're asking.  Everything has to be redrawn, no
matter what you do.  The only difference I can see is whether you change
your perspective with lookat or do your movement by changing translation,
rotation, and scaling on the objects drawn.  Personally, I prefer to use
lookat most of the time, it makes most things simpler and easier to implement
and understand.
--

	Brent L. Bates
	NASA-Langley Research Center
	M.S. 294
	Hampton, Virginia  23665-5225
	(804) 864-2854
	E-mail: blbates@aero4.larc.nasa.gov or blbates@aero2.larc.nasa.gov