Subject:
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Re: Ldglite must be faster
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Newsgroups:
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lugnet.cad
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Date:
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Mon, 2 Sep 2002 22:30:56 GMT
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Viewed:
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869 times
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In lugnet.cad, Anders Isaksson writes:
> Another (Windows) wish: I would very much like to see a .dll (with some
> standardized interface) implementing LDRAW rendering on a supplied dc - then
> it would be sooo easy to build all those little helper programs, adding
> functionality around the basic rendering engine.
Well, all the rendering functionality of LDView is in its own library, but I
made it a static library when I added my experimental screensaver support in
order to get rid of the requirement of multiple files in the Windows system
directory (there would be 3 separate DLLs in addition to the main executable
if I were using DLLs instead of static libraries).
It would be easy enough to create a DLL, but the LDView renderer is
definitely designed primarily with real-time rendering performance as the
primary goal, and not for displaying lots of different files. Consequently,
it is fairly slow at loading files (and incidentally uses a relatively large
amount of memory in the process). The current design may have problems
displaying in multiple windows, though, due to the fact that it has a global
shared parts cache that gets cleared each time a model is loaded. This
actually may not be a problem, since I don't think the part cache is
referenced after the model is loaded, but I haven't tried it.
Having the rendering separated from the UI does have one main advantage,
though. I'm almost done with a Linux version of LDView, and there is a Mac
OS X version in the works by someone else.
--Travis Cobbs (tcobbs@REMOVE.halibut.com)
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Message is in Reply To:
 | | Re: Ldglite must be faster
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| "Don Heyse" <dheyse@hotmail.spam....away.com> skrev i meddelandet news:H1tH93.DFA@lugnet.com... (...) doesn't work... Does anyone know you can press CTRL-C in ldlist and paste the part number in any other (text) editing program? It also implements a (...) (22 years ago, 2-Sep-02, to lugnet.cad)
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