POV-Ray : Newsgroups : povray.general : why are differences soooo slow? : Re: why are differences soooo slow? Server Time
11 Aug 2024 23:16:58 EDT (-0400)
  Re: why are differences soooo slow?  
From: Ken
Date: 27 Apr 1999 11:24:46
Message: <3725C7CD.B95BFB64@pacbell.net>
Nieminen Mika wrote:
> 
> Ken <tyl### [at] pacbellnet> wrote:
> : If you are differencing a 1 unit
> : cube then add bounding with a 1.1 unit cube at the end of the
> : difference operation.
> 
>   Why 1.1 and not 1? AFAIK the bounding box should be as small as possible
> (of course still fitting the bounded object inside it).
> 
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

  I have been worried about the coincedent surface problem. If you bound
an object using an object that is too small it will end up clipping
the object you are trying to bound. I simply over scale a bit to avoid
this possibilty. All examples I have seen for bounding have always been
scaled larger than the object to be bound and I practice by example.

-- 
Ken Tyler

mailto://tylereng@pacbell.net


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