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List:       kpovmodeler-devel
Subject:    Re: CSG Modelling
From:       Andreas Zehender <az () azweb ! de>
Date:       2004-09-26 6:34:59
Message-ID: 200409260834.59609.az () azweb ! de
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Hi Leon!

Have you tried out 3dom? They seem to use brep csg.
But use whatever works and is faster ;)

On Sunday, 26. September 2004 01:54, Leon Pennington wrote:
> Hi,
>
> Its been a bit quiet round here, so I though I'd let everyone know what
> I've been up too, which is mainly trying to do CSG.
>
> I finally go a brep implementation of CSG working ( not in KPov, but a
> simply little viewer program. ) and basically its rubbish for what we want.
> Its very complex, slow, and memory intesive, which is exactly what you
> don't want in a modeller for a preview. Its also 4000 lines long ( whithout
> comments or blank lines ) most of which are loops.
>
> So after months of work, I've decided to take an axiom to heart and I'm
> throwing it away, and looking at other ways of making it work. I'm very
> determined...
>
> Current favourite is a bsp based approach. Which looks very promising.
>
> I now know why very few modellers do wireframe CSG, its a lot of hardwork.
>
> I've done some more work on the Libs as well, which to be honest broke it
> all, I'll try to knock it all back into shape as soon as I can.

-- 
--------------------------------------------------
 Andreas Zehender
 Master of Computer Science, Dipl. Ing. (BA)
 http://www.azweb.de
 az@azweb.de | zehender@kde.org      
--------------------------------------------------

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