Subject:
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Re: A comprehensive LDraw object model
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Newsgroups:
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lugnet.cad.dev
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Date:
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Sun, 10 Feb 2002 05:43:24 GMT
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Viewed:
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450 times
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Michael Horvath wrote:
> How about an LDraw DAT model reducer - something that hacks out the insides
> and leaves nothing but a hollow shell? This way you could port it to
> platforms that can't handle so many polygons, and also render in realtime.
> It would kind of be like carving out the insides of a pumpkin.
>
> -Mike
Actually this brings up a different issue. I haven't put alot of thought
into it yet, but I think it would be useful to add information in the
part files that would allow a program to differentiate between geometry
that represents 'outside' walls and features, and 'inside' walls and
features.
I know the part files are (for good reason) made as complete and
realistic as possible, but when dragging, rotating, etc parts
while building a model, being able to 'turn-off' some of the
geometry might be a great way to be able to make a program more
useable and responsive for the user.
-Kyle
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Message has 2 Replies:
 | | Re: A comprehensive LDraw object model
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| (...) IIRC (and I wish I could find the reference) the LDraw spec does support this. It depends on the order of the points in the polygon; e.g. clockwise points out, counterclockwise points in. Or something like that. But last I heard of this, there (...) (22 years ago, 10-Feb-02, to lugnet.cad.dev)
| | | Re: A comprehensive LDraw object model
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| (...) A couple of different approaches to this have been discussed before. I think the most generic solution was to implement a 0 DETAIL <level> meta-command, that would identify the detail-level of the following lines. A 0 detail level indicates (...) (22 years ago, 11-Feb-02, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: A comprehensive LDraw object model
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| How about an LDraw DAT model reducer - something that hacks out the insides and leaves nothing but a hollow shell? This way you could port it to platforms that can't handle so many polygons, and also render in realtime. It would kind of be like (...) (22 years ago, 10-Feb-02, to lugnet.cad.dev)
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