Subject:
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Re: video card
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Newsgroups:
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lugnet.cad.dev.mac
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Date:
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Sat, 23 Feb 2002 02:52:09 GMT
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Viewed:
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1622 times
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In lugnet.cad.dev.mac, Don Heyse writes:
> In lugnet.cad.dev.mac, Mark Abrams writes:
> >
> > I have been doing an analysis of the ldglite 0.9.5 code base. Most of
> > the ledit commands cause the image to be either invisible or render
> > incorrectly. Also, I get a wireframe trail when I use the arrow keys.
> > Everything re-renders fine if I cycle through the elements
> > (page-up/page-down) in the scene. Is this normal behaviour?
>
> Some of that might be normal behaviour, but I'm not positive from the
> description. Using -ledit on the command line turns on the
> draw to current piece mode that LEDIT uses. If you just use -le
> I think it should draw the whole model. You can also toggle this
> behaviour in the Options menu (/OD) but for some reason it doesn't
> take effect until you hit the e key (or spin with the mouse) to cause
> a redraw. I'll have to look into that one. Anyhow, I tried to make
> it as close to LEDIT as possible with -ledit but I may have botched
> some things.
>
> For the wireframe trails you can try using uppercase -LEDIT (or -LE
> to skip the draw to current piece mode). Uppercase tells it to move
> parts in solid mode, which might get rid of the wireframe trails.
> Lowercase -ledit uses XOR wireframe mode, but I've run into problems
> with the stencil buffer used by this on some cards. (I did a workaround
> for the Nvidia TNT by using an opengl extension). I don't know about
> the Rage 3D pro-64, but the drivers on my older Rage Pro are so bad
> that I use the Microsoft generic Software-only driver instead on my
> Win95 PC.
I forgot to mention this, but if you only want to look at the model,
or *mostly* just want to look, you can skip the -le, -ledit, -LE, or
-LEDIT on the command line. Then when you want to edit, just press
the INSERT key to enter and exit from LEDIT mode. If you press the
CTRL along with INSERT you get the solid moving pieces. Adding the
ALT key gives you LEDIT compatibility mode with draw to current piece
and single line studs enabled.
I'm sure this is all documented somewhere. ;^) Also, I'm finally
working on a little GUI so you can keep track of all the drawing/editing
modes. Maybe for version 0.9.6...
> > I suspect this is due to the lack of a video card that supports
> > OpenGL (ATI Rage 3D pro-64 iirc). Will a new video card resolve this
> > problem, will there be any other noticable performance enhancement
> > with a new video card?
> >
> > It is the stock card in a G3/266/MT with OSX. I am starting the app
> > with the command line args '-l3 -ledit -v0 -g myfile.dat'.
>
> What does ldglite print out when you start? It should print out the
> opengl extensions, buffer sizes, and say something about the buffer
> swap mode and the editing mode. This will tell which methods ldglite
> is using for editing mode. I tried to take advantage of some opengl
> extensions to make editing faster, but then had to work around some
> bugs in various drivers.
>
> Don
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Message is in Reply To:
 | | Re: video card
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| (...) Some of that might be normal behaviour, but I'm not positive from the description. Using -ledit on the command line turns on the draw to current piece mode that LEDIT uses. If you just use -le I think it should draw the whole model. You can (...) (23 years ago, 23-Feb-02, to lugnet.cad.dev.mac)
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