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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Thu, 6 Apr 2000 13:39:32 GMT
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Viewed:
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6716 times
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Steve Bliss wrote:
>
> > Can Michael or any other programmers estimate the time savings from being
> > able to assume all parts as BFC compliant, rather than having to check each
> > one?
>
> Good point. We definitely *should* muddy this discussion up with some
> real facts. ;)
I can't speak for the other programs but if you allow a part to have
CCW and CW faces in any OpenGL program, it's going to be slower (but as
LeoCAD's library is pre-processed than it won't be a problem). If you
have some parts BFC compliant and some not than it won't make a big
difference in the total rendering time.
> > Does the strength of your opinion depend at all on just how difficult it is
> > to fix a part?
>
> Yes and no. Something that's easy to do is definitely less of a
> 'requirement' than something that's a lot of work. But it's still a
> requirement, placed on people who are voluntarily contributing their
> work.
I'm also against requiring all parts to be BFC compliant unless
there's a *completely automatic* way of checking.
Leonardo
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Message has 1 Reply:
 | | Re: Some Words To BFC
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| (...) As someone pointed out once, it's not a big deal to get all windings the same before passing the data to OpenGL. Just swap the order of the points. For quads, switch points 2 and 4. For triangles, switch points 2 and 3. This could/should be (...) (26 years ago, 6-Apr-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Some Words To BFC
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| (...) Good point. We definitely *should* muddy this discussion up with some real facts. ;) (...) Yes and no. Something that's easy to do is definitely less of a 'requirement' than something that's a lot of work. But it's still a requirement, placed (...) (26 years ago, 6-Apr-00, to lugnet.cad.dev)
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