Subject:
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Re: L3DView v0.5 view LDraw models in real-time 3D
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 21 Jun 2000 01:15:41 GMT
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Viewed:
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788 times
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Don Heyse wrote:
>
> Rats! I don't know how many times I've heard that. "I'll release the source
> after I clean it up." L3lab, Ldlite 2.0, MLCAD? What is so embarrasing about
> developmental code? It's not like dirty underwear. Doesn't anyone realize
> that nobody EVER gets around to polishing things up because it's always more
> interesting to add NEW stuff. Meanwhile I'm missing out on the chance to
> learn something here.
I couldn't agree more, you don't have anything to loose by making the
source code available, you might even get some help from other people
(I've contributed small patches to LDLite and LDGLite for example). I've
said that before but I'll say it again, we should work together on a
common project instead of having a dozen different programs that all do
the same thing.
> I know what you mean. All those GluUnProject calls for the optional lines in
> ldglite are pretty expensive. It looks nice though when the model isn't
> moving, like for screen dumps.
Take a look at glu-src/project.c in the Mesa source code, you'll see
that the inverse matrix is calculated *every time* you call
gluUnproject, and that's a very expensive function. You can easily make
an optimized function for ldglite by calculating the matrix only once
per frame as you know it won't change. On my last message I said glu is
not good and here's the proof. :)
Leonardo
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Message has 2 Replies:
 | | Re: L3DView v0.5 view LDraw models in real-time 3D
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| In lugnet.cad.dev, Leonardo Zide writes: ... snip (...) I could go for that since I'm far too lazy to do it all myself from scratch. What do you suggest? What I'd like to see is a program that can: build models easily build parts easily display (...) (24 years ago, 21-Jun-00, to lugnet.cad.dev)
| | | Re: L3DView v0.5 view LDraw models in real-time 3D
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| (...) Me too would love to see some sourcecode. I am just learning how to program and perhaps I don't even get the time to look at the code. but having the code is something that gives you an extra push in wanting to create similar programs. (...) (24 years ago, 22-Jun-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: L3DView v0.5 view LDraw models in real-time 3D
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| (...) Rats! I don't know how many times I've heard that. "I'll release the source after I clean it up." L3lab, Ldlite 2.0, MLCAD? What is so embarrasing about developmental code? It's not like dirty underwear. Doesn't anyone realize that nobody EVER (...) (24 years ago, 20-Jun-00, to lugnet.cad.dev)
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