Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcso!hpfcdj!brian
From: brian@hpfcdj.HP.COM (Brian Rauchfuss)
Newsgroups: comp.graphics
Subject: Re: 3-D Rotation Algorithm
Message-ID: <17400011@hpfcdj.HP.COM>
Date: 12 Oct 89 15:39:10 GMT
References: <6734@hubcap.clemson.edu>
Organization: Gremlin Lovers Anonymous
Lines: 7


What you can do is come up with a table of sines and cosines (remembering that
sin(x)=cos(x+90), so only one table is required)  and then use linear 
interpolation between table entries to get exact values.  This eliminates
the slow sin and cos functions, but still uses some floating point.

Brian Rauchfuss