Subject:
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Re: New LDraw based editor... GLIDE. Version Alpha 0.73
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 18 May 2004 20:00:13 GMT
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Viewed:
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1690 times
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In lugnet.cad, Daniel Bennett wrote:
> Next version will be alpha 0.8.
> It will have BFC compliance to fix the lighting problems or clicking bricks.
> Not decided which to do first yet.
> I recon about 3 weeks befor thats out.
Having written an OpenGL-based LDraw viewer (LDView), I'd like to point out that
you can't rely on parts to contain BFC information. As time goes by, more and
more parts are BFC certified, but many aren't, and many may never be. (I hope
that eventually all will be, but unless there's a concerted effort to update all
the old files, it isn't likely to happen.)
Fortunately, OpenGL has a fairly easy solution to the problem. Just turn on
two-sided lighting when you don't have BFC information. While this does slow
down the rendering somewhat (it varies on different hardware), it nevertheless
gets the job done. It also has the advantage of being really easy, and you can
put off BFC compliance until later.
An alternate solution that works as long as you don't have specular enabled is
to use two directional lights pointing in opposite directions. I found this to
be faster on my nVidia GeForce 3 than enabling two-sided lighting.
--Travis Cobbs
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Message has 2 Replies:
 | | Re: New LDraw based editor... GLIDE.
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| Hi I agree its a shame about the incomplete BFC situation. Currently I use Two-Sided lighting in GLIDE you don't notice the performance hit because most of the processing effort is done by the CPU at the moment. That’s what slows it down rather than (...) (20 years ago, 19-May-04, to lugnet.cad)
| | | Re: New LDraw based editor... GLIDE.
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| (...) Hi Actually I only thought I was using two-sided lighting. Turned out I had the code commented out which is why the lighting was a bit awry. Thanks for pointing it out. --Dan. (20 years ago, 20-May-04, to lugnet.cad)
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Message is in Reply To:
| | Re: New LDraw based editor... GLIDE. Version Alpha 0.73
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| Hi The next version is now out. ALPHA 0.73. There have been no big changes. They should be in the next version. New stuff: You can now select bricks by color. The drag selection now works. Some brick type tabs have been added. Next version will be (...) (20 years ago, 18-May-04, to lugnet.cad)
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