[Octave-bug-tracker] [bug #37598] OpenGL lines render as dotted lines on some drivers

[Mike Miller]

URL:
  <http://savannah.gnu.org/bugs/?37598>

                 Summary: OpenGL lines render as dotted lines on some drivers
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Thu 18 Oct 2012 04:08:05 PM EDT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

I asked this on the maintainers list first and the consensus was that this is
not correct and it should be fixed to render the same on all graphics
hardware.

https://mailman.cae.wisc.edu/pipermail/octave-maintainers/2012-October/030403.html

FLTK plots on a Debian GNU/Linux system using the i965 Intel graphics driver
appear as in this capture:

http://mailman.cae.wisc.edu/pipermail/octave-maintainers/attachments/20121012/a00a1866/attachment.png

All other systems I have tried show up as in this capture:

http://mailman.cae.wisc.edu/pipermail/octave-maintainers/attachments/20121012/a00a1866/attachment-0001.png

which I assume is the way they should appear.

An uninitialized antialiasing setting was proposed as the possible problem
here.




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