Subject:
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Re: LDGLite outputting gobble-dee-goo to terminal window
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Newsgroups:
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lugnet.cad.dev.mac
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Date:
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Thu, 7 Aug 2003 01:12:16 GMT
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Viewed:
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5175 times
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In article <HJ7AAy.193v@lugnet.com>,
"Don Heyse" <dheyse@hotmail.spam.go.away.com> wrote:
> In lugnet.cad.dev.mac, Christopher Masi wrote:
> > "Don Heyse" <dheyse@hotmail.spam.go.away.com> wrote:
> >
> > > > Oops... before I get to excited, moving a piece creates some bitchin'
> > > > trail lines :) that go away when the view is changed.
> > > >
> > > > http://users.rcn.com/cjmasi/trail_lines.png
> > >
> > > I think I may have found the cause of this one.
> > >
> > > http://www.geocrawler.com/archives/3/704/2000/9/0/4312491/
> > >
> > > This guy found the same bug on his Mac. Writing to the GL_FRONT
> > > buffer seems to also write over whatever you may have stashed away
> > > in the GL_BACK buffer. The only workaround I can think of is to
> > > copy the image to regular system memory, or redraw the whole model
> > > every time you move a part. Copying an an opengl image buffer to
> > > system memory is typically quite slow. How slow are the full
> > > model redraws when you change the view?
> >
> > Less that a second for my Mini, but it is mini :) About 4 seaconds for
> > my black tank car, which has 284 (?) parts. About 8 seconds to draw my
> > GP30. The dat for the GP30 has 817 lines (not all of them are parts).
> > Redraw the model every time... that would mean a eight second wait for
> > every move of the brick, right? I think that would be a bad idea. The
> > intro level Macs aren't that much faster than mine.
> > How bad a hit is system memory? Do the new fancy Macs have the smae
> > trail line problem?
> > My feeling is... as long as you are having fun tracking down bugs,
> > track away, but if it it is driving you crazy, and you are only fixing
> > it for us old timers (though there are always more Mac old timers than
> > there are in other OS's) a big "don't do this, but this works fine"
> > section in the read me would be more than adequate.
>
> Ok, I might've fixed all of this. If not, I'll have to make a 1.1
> release real soon because I couldn't wait any longer. Ldglite has
> finally reached 1.0. Give the OS X executable a spin and see what
> I missed.
>
> http://ldglite.sourceforge.net/
>
> By the way, Tom Bozzo sent me a really nice screenshot of your GP30
> and said you approved it's use on the ldglite web page. I hope that's
> all right.
>
> Don
Yep, it is cool to have my model as the edit mode screen shot. It is the
first model that I created entirely with LDGLite too.
I just finished downloading 1.0.0. I'll give you a report as soon as I
have had a chance to do some testing.
Chris
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