Subject:
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Re: Ldglite bug report (Was: Portable Ldraw system)
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Newsgroups:
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lugnet.cad.dev
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Date:
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Sat, 24 Aug 2002 21:56:42 GMT
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Viewed:
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2122 times
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In lugnet.cad.dev, Jeremy H. Sproat writes:
> In lugnet.cad.dev, Don Heyse writes:
> > In lugnet.cad.dev, Jeremy H. Sproat writes:
> > > Speaking of lines, when I use -W20 the ends of each line segment is capped
> > > by a square which is the same color as the line but 2 or 3 times as wide.
> > > The net result is that pieces with many line segments (curves for example)
> > > have a very "spiky" look. Is there any way to smooth these out?
> > I'm not sure what I can do about that. Opengl only does flat ended wide
> > lines, so I draw the endpoints at what should be the appropriate width
> > to smooth them out. Apparently your driver draws the points as squares
> > instead of circles. I wonder if this is a common problem. Probably,
> > since you're using the generic driver...
>
> I tried this on a quasi-high-end machine, same DAT and options, same
> results.
I applied the fix Travis pointed out, and it seems to smooth out
some of the bumpies in antialiased mode with wide lines on my PC.
Give it a try:
http:\\ldglite.sourceforge.net\ldgliteexe_test.zip
I also noticed that the opengl drivers seem to top out their wide line
support at less than 12 pixels. Nuts.
Don
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Message has 2 Replies:
 | | Re: Ldglite bug report (Was: Portable Ldraw system)
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| (...) You might find the following info from Microsoft's help page on glGet useful: GL_LINE_WIDTH_RANGE The params parameter returns two values: the smallest and largest supported widths for antialiased lines. See glLineWidth. That's the first I'd (...) (22 years ago, 24-Aug-02, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Ldglite bug report (Was: Portable Ldraw system)
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| (...) I tried this on a quasi-high-end machine, same DAT and options, same results. Here's the l3glite output: ZClip = (-1000, 4000) GL_VERSION = 1.2.1 GL_EXTENSIONS = GL_ARB_multitexture GL_ARB_texture_compression GL_ARB_texture_cu be_map (...) (22 years ago, 24-Aug-02, to lugnet.cad.dev)
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