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From: marco atzeri <marco.atzeri@gmail.com>
To: cygwin-xfree <cygwin-xfree@cygwin.com>
Subject: Re: fltk / gl rendering problem
Date: Mon, 17 Jun 2013 06:48:00 -0000 [thread overview]
Message-ID: <51BEB13E.9090907@gmail.com> (raw)
In-Reply-To: <51BDD0DB.1040807@gmail.com>
Il 6/16/2013 4:51 PM, marco atzeri ha scritto:
>
>
> Hi,
> testing a octave/fltk graphics issue, I noticed that also the
> demo of fltk with GL interface has a similar issue.
>
> On http://matzeri.altervista.org/works/fltk_gl/
> I uploaded the before and after apperance of "gl_overlay" demo.
>
> It is enough to move the window to loose the geometrical
> image while the bars are correctly re-drawn.
>
> Running Xwin with -wgl does not show such defect, but it is
> terribly slow. So I assume it is not a fltk defect but of
> GL or XServer.
>
> A copy of gl_overlay from fltk-1.3.1.9857-1 build is also uploaded.
>
>
> Regards
> Marco
>
further experiment showed that the defect is present when the integrate
windows manager is used. With external window manager (fvwm, openbox,..
) that defect does not apper.
With external window manager another defect appears, the upper
bar effect is not shown at all; while it is present on the integrated
window manager.
Regards
Marco
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next prev parent reply other threads:[~2013-06-17 6:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <51BDCFCE.3060608@gmail.com>
2013-06-16 14:51 ` marco atzeri
2013-06-17 6:48 ` marco atzeri [this message]
2013-06-21 11:32 ` Jon TURNEY
2013-06-23 13:56 ` marco atzeri
2013-06-24 15:18 ` Jon TURNEY
2013-06-24 20:31 ` A.R. Burgers
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