Subject:
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Re: Is it possible to use LDView as POV-Ray previewer?
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Newsgroups:
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lugnet.cad.ray
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Date:
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Tue, 6 Dec 2005 21:18:52 GMT
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Viewed:
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7914 times
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In lugnet.cad.ray, Timothy Gould wrote:
> None handy but all I'd do is sort first and then perpendicularise one and use
> the cross-product for the third. Probably what you do anyway.
>
> To be honest I don't see why POVray is being so pedantic about it. It's only
> going to be accurate matter to about 1/2000 unless you raytrace massive images.
I'm not sure what you mean by "sort first". However, I do what you say, and
make the right and up perpendicular, then use the cross product to determine the
direction. POV-Ray is only pedantic when the "vista buffer" is enabled (which
is true by default). I'm not sure what the "vista buffer" does, or how
sensitive it is to accuracy, but it goes without saying that there will always
be round-off errors.
--Travis
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Message has 1 Reply:
 | | Re: Is it possible to use LDView as POV-Ray previewer?
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| (...) By sort first I mean I would find which vector is most-orthogonal (ie. the one whose dot protucts were smallest compared to the other two) and leave it be, then I'd perpendicularise the one whose dot-product was smallest with the first one and (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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Message is in Reply To:
| | Re: Is it possible to use LDView as POV-Ray previewer?
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| (...) None handy but all I'd do is sort first and then perpendicularise one and use the cross-product for the third. Probably what you do anyway. To be honest I don't see why POVray is being so pedantic about it. It's only going to be accurate (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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