Subject:
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Re: Some Words To BFC
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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 15:34:01 GMT
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Viewed:
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2737 times
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In lugnet.cad.dev, Rui Manuel Silva Martins writes:
>
> Which method are you using.
>
> I have researched (Odd/Even), (BSP) and (Winged Edge). There is also the brute
> force method of supersampling raycasting, but this one is a NO GO.
Perhaps this approach is a bit naive, but couldn't you use something similar
to a point in polygon test?
Cast a ray along the normal from the center of each polygon. If it intersects
an odd number of surfaces then the normal points toward the inside of the
solid and should be reversed for BFC compliancy. Is this the (Odd/even) test?
If so, what are the stumbling blocks?
Don
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Message has 1 Reply:
 | | Re: Some Words To BFC
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| (...) That's is the (Odd/Even) test, also with Raycasting, but no supersampling, in the supersampling case, you just subdivide the polys further and further, or shoot pseudo-random rays until you find the correct normals for all faces. this does NOT (...) (25 years ago, 5-Apr-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Some Words To BFC
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| (...) but it seams to be damaged, but I was able to get the ideia. (...) Well this is exactly what I have been researching for a month now ! and believe me to be able to correct files 100% is almost impossible, due to the way the files are built. (...) (25 years ago, 5-Apr-00, to lugnet.cad.dev)
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