Subject:
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Re: Sphere Primitive
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 5 Apr 2000 20:40:03 GMT
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Viewed:
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2197 times
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In lugnet.cad.dev, Rui Martins wrote:
> Is it just me or the sphere primitives have non planar quads ?
>
> Or is the sphere distorted to allow for planar quads ?
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> Why where the sphere done in this way instead of the usual (full quads with
> triangles on the poles) or (all triangles) ?
>
> I hope there wasa practical reason, like less geometry or something.
You'd have to ask James these questions. Only he would know.
It *looks* like the non-planar quads could be a rounding error, or
rounding limitation, since he used just 2 decimal places.
Steve
--
Augh! I just realized I messed up the winding in 48\1-8sphe.dat! It
looks like a curved triangular checkerboard in L3Lab!
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Message is in Reply To:
 | | Sphere Primitive
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| Is it just me or the sphere primitives have non planar quads ? Or is the sphere distorted to allow for planar quads ? Why where the sphere done in this way instead of the usual (full quads with triangles on the poles) or (all triangles) ? I hope (...) (25 years ago, 5-Apr-00, to lugnet.cad.dev)
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