Path: chuka.playstation.co.uk!news
From: Jim <jim@micronetics.com>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Re: Point light sources
Date: Mon, 04 Aug 1997 09:36:31 +0100
Organization: PlayStation Net Yaroze (SCEE)
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Tyrone McAuley wrote:
> 
> 
> We haven't come up with an alternative way of getting this effect yet.
> Perhaps you could look
> at hacking the TMD structure or lighting model or something (not easy
> without more hardware
> knowledge though).
> 


Mario,

Ok the way I'm going to approach this is..

I'm setting up three noncolinear light sources so they dont interfear
with each other.  One each on the x,y,z axis.  Next I'll just twiddle
the TMD's normal and point it in the direction of each ligh source that
I wish the surface to have.  This way I can blend between light sources
by moving the normal 45deg between axis for example.  Should be
reasonably fast excecpt for a sqrt to normilise each normal which would
cane it if there were a lot.  All calcs would probably end up in a small
table anyway.  I'll just precalculate all the lighting effects.

There's my theory, next the implementation,  tune in next week, etc...

-JiM