Subject:
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Re: *** LDView Version 1.9.5 Released ***
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Newsgroups:
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lugnet.cad
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Date:
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Thu, 1 Aug 2002 07:16:31 GMT
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Viewed:
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642 times
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Nice to see that everything is ok. Those arms need to be fixed anyway. In
the mean time I tried to speed up rendering using the vertex array range and
fences extension on a geforce3. This seems to be about as fast as display
lists but uses less memory. In the case of smooth sufaces indices can be
shared due to vertex cache. I could make a speedup by sorting vertices
spatially. I also discovered in a document in the nvidia sdk that 2 sided
lighting is almost for free on geforce3 products or higher in the case of
'infinite viewer/light source'. Another advantage of using 'infinite
viewer/light source' is that you don't have to tesselate surfaces for
acceptable lighting. This is not done with the bricks on the cover of the
red opengl book and the shading looks a bit strange.
Martijn
"Travis Cobbs" <tcobbs@REMOVE.halibut.com> wrote in message
news:GzzFMx.1I8@lugnet.com...
> Well, I know I'm replying to something from a long time ago, but I just • got
> around to investigating.
>
> The type 5 lines on the minifig arm are wrong, and my algorithm seems to • be
> working correctly in this instance. Instead of being drawn along the edge
> of the quads as they are supposed to be, the type 5 lines are drawn along
> the diagonal. So none of the quads have a type 5 line between them. One • of
> the type 5 lines is done correctly, and the two quads on either side of it
> are smooth shaded together via my smoothing algorithm.
>
> --Travis Cobbs (tcobbs@REMOVE.halibut.com)
>
> In lugnet.cad, Martijn Zwaal writes:
> > Hello,
> >
> > this is looking good. There are some glitches in the smoothing however • ( the
> > minifig arm is partially smoothed for example). There also seems to be a
> > general problem when settings are changed. It looks like not al things • are
> > reset in some cases before starting in a new mode. It might also be handy • to
> > have registry entries per version (not a joke :) ) so that different • version
> > can coexist.
> >
> > Martijn Zwaal
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Message has 2 Replies:
 | | Re: *** LDView Version 1.9.5 Released ***
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| (...) I plan to eventually try out vertex array range, but since it's nVidia-specific, there has to be a fallback. I hadn't thought about the decrease in memory consumption, but considering the huge amount of memory sucked up by the display lists, (...) (22 years ago, 1-Aug-02, to lugnet.cad)
| | | Re: *** LDView Version 1.9.5 Released ***
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| In lugnet.cad, Martijn Zwaal writes: ... (...) ... Well, I just checked at home, and two sided lighting is a relatively expensive operation on my GeForce3, even when the viewer is treated as an infinite viewer. (As I mentioned in my other post, all (...) (22 years ago, 4-Aug-02, to lugnet.cad)
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Message is in Reply To:
| | Re: *** LDView Version 1.9.5 Released ***
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| Well, I know I'm replying to something from a long time ago, but I just got around to investigating. The type 5 lines on the minifig arm are wrong, and my algorithm seems to be working correctly in this instance. Instead of being drawn along the (...) (22 years ago, 28-Jul-02, to lugnet.cad)
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