Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: mperdue@iquest.net (Mario Perdue)
Newsgroups: scea.yaroze.programming.codewarrior
Subject: Re: point rotation using integer math
Date: Wed, 28 May 1997 15:06:26 GMT
Organization: SCEA Net Yaroze News
Lines: 16
Message-ID: <338c48cb.1557482@205.149.189.29>
References: <338B8A1C.2781@scad.edu>
NNTP-Posting-Host: filter-hrtc1.nortel.net
X-Newsreader: Forte Free Agent 1.1/32.230

On Tue, 27 May 1997 21:27:56 -0400, Steve LaVietes <steve@scad.edu>
wrote:

>Given that CWs MIPS compiler doesn't support floating point values
>currently, how might one rotate a point using only integer math. The
>method that I regularly use requires trig functions that return only
>floating point values.
>
>Any suggestions?

The Yaroze library contains several Matrix functions to handle
Rotation, Scaling and such. For a full description, look at the
documentation for RotMatrix(), RotMatrixX(), ScaleMatrix(), etc. These
functions were written to work with non-floating point data.

Mario