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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Fri, 7 Apr 2000 15:13:52 GMT
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Reply-To:
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Rui.Martins@+stopspam+link.pt
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Viewed:
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2569 times
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On Fri, 7 Apr 2000, Leonardo Zide wrote:
[...SNIP...]
> Imagine a file like this:
>
> 4 16 1 1 1 1 1 1 1
> 0 INVERSE
> 4 16 1 1 1 1 1 1 1
> 4 16 1 1 1 1 1 1 1
> 4 16 1 1 1 1 1 1 1
> 0 INVERSE
> 4 16 1 1 1 1 1 1 1
>
> It would be nicer to have the quads reversed, this could be done by a
> program if a person finds it easier to add 0 INVERSE statements.
Actually I think you missunderstood something (or maybe I did), but the
0 INVERSE
meta command is to be used ONLY with file references, that is:
0 INVERSE
1 16 x y z a b c d e f g h i filename.dat
where (a b c d e f g h i) represents the usual matrix which has to be reverted.
i.e. you must adapt the following quads down the chain of this file reference,
due to the inversion made by the matrix.
This can be easilly accomplished by reverting (toggling internally) the meaning
of the CCW and CW windings.
See ya
Rui Martins
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Message is in Reply To:
 | | Re: Some Words To BFC [DAT]
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| (...) I don't mind that because I preprocess the files anyway and anyone who wants to get a good speed increase should do the same. But it's not a good idea to turn on/off BFC several times and in some cases, it's nicer to have the faces reversed. (...) (25 years ago, 7-Apr-00, to lugnet.cad.dev)
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