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Article #565

Re: 3D Studio - Books?

#565
From: Eric Zundel Ayers
Date: Tue, 17 Nov 1992 19:39
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In article <17NOV199208011536@reg.triumf.ca> wilmshurst@reg.triumf.ca (WILMSHURST, PETER) writes:
> 	I'm pleased with the program (3DS 2.0), however I too am having problems
>  generating mirrored surfaces. I've even used the same material CUB100 
>  (as found in CUBEDEMO.3DS materials library) and I get no mirror effect.
>  WHY... WHY... WHY...  Unfortunately, I don't get enough time on my friends
>  machine (486-25) to try many combinations= of materials/properties/etc.
>
>				Thanks in advance... Pete
>
>  PS:  Please reply here,  I think this info may help others. =:)
>
> _________________________________
>| email: wilmshurst@reg.triumf.ca |
> ---------------------------------

I think that, in order to get a mirrored looking surface, you have to map
your own reflection into the material... So if you wanted to see a reflection
of the rest of your model in a mirrored surface, you'd have to render your
drawing from a different vantage point, then map that image into your mirrored
surface, and then render the model again from your desired viewpoint...

It takes a lot of fiddling around (with this method) to get the perspective 
and color effects you want.  

I don't know how you would deal with animation in this respect.  I guess you
would need some sort of raytracing to get an "honest" mirrored effect.  
But what is honest about animation anyway?

Eric.
-- 
                                   \\||//
Eric Zundel Ayers                  +----+
Georgia Institute of Technology    |----|         College of Architecture
gt3021b@prism.gatech.edu           +----+    Home of the House of Suicide
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Path: arc1-ca.pugleaf.net!sparky!uunet!destroyer!gatech!prism!gt3021b
From: gt3021b@prism.gatech.EDU (Eric Zundel Ayers)
Newsgroups: comp.graphics.animation
Subject: Re: 3D Studio - Books?
Keywords: 3DS 3D Studio
Message-ID: <75142@hydra.gatech.EDU>
Date: 17 Nov 92 19:39:21 GMT
References: <17NOV199208011536@reg.triumf.ca>
Organization: Georgia Institute of Technology
Lines: 34