Path: chuka.playstation.co.uk!news
From: Jim <jim@micronetics.com>
Newsgroups: scee.yaroze.beginners
Subject: Re: Shadow
Date: Thu, 16 Apr 1998 13:47:35 +0100
Organization: Mobius Codeworks Ltd.
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Not as an integrate feature of the Yaroze library.  

Making objects self shadow is quite complex.

But you could cast simple shadows with a bit of fiddling.  For example
if you have an object above a plane, with a light source directly above
the object in question, with the intention of casting a shadow onto the
plane.  You could scale the object along the Y axis so that it is
completely flat and then draw it below the object casting the shadow, so
it appears on the plane.  You would also have to set the colour of the
scaled object to black, and possibly make it transparent, so it looks
like a shadow.

I guess you could also scale the object on the Y axis in your modelling
package, and have two independent models, one the shadow and one the
original.  This would only work if the original object doesn't animate.
One step further, I don't see any reason why you couldn't have the
shadow as part of the original model.

Casting accurate shadows from a moving light source is nontrivial, but
there's plenty of books on it.

Hope this gets you on your way.

Jim

Eric Bleinagel wrote:
> 
> Hi,
> is there a way to let my 3d-objects throw shadows?
> 
> Eric
> (sorry for my bad english...)