Path: chuka.playstation.co.uk!scea!peter_alau@playstation.sony.com
From: Elliott Lee <tenchi@shell.jps.net>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Re: Yaroze built in look-up tables
Date: Tue, 12 Jan 1999 17:55:33 -0800
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Nathan Miller wrote:
> 
> Does anyone know if the sine and cosine functions just return a lookup table
> value or if they actually calculate the return value everytime.  If it 

Probably every time.  Miles is right: they are slow.

> a lookup table, is there anyway to access this table directly?  Seems like
> the functions should just return a lookup table value, it would be a lot
> quicker.

Do the calculation yourself.  Precalc on your PC and store it in some
global variable...  I've been working on a project off and on and the
first thing it does is calculate its sine tables.  I think there's
only 256 or so entries but it takes at least 1.5 seconds to do.  So,
I just put up an information screen and let that stay there while the
Yaroze crunches bits...

- e!