Problem with stereo display

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi all!
We are developing an application which uses the GtkGLArea to embed an
OpenGL Performer window into a GTK user interface. The application is able
to display the 3D-scene in mono or in stereo. Some time ago, when we were
still using GTK 1.2, this worked fine.
In the meantime we ugraded to GTK+ 2.2.2, so I had to upgrade the
GtkGLArea too. Now I noticed that stereo mode doesn't work anymore. I'm
not quite sure, that this is a GTK problem, since there were other program
changes. But after running some simple test cases it looks like there is
a problem with the GLContext.
First I create the GtkGLArea with attributes for quad buffered stereo.
This works on a machine which is configured for stereo display. On a
machine without stereo visuals it fails and returns a NULL pointer. So
far so good.
Then I connect the performer window to it. When this window is opened I
test whether stereo is available. This test fails, so it looks like the
stereo attribute is somehow lost. The drawing calls are executed for
buffers GL_BACK_LEFT and GL_BACK_RIGHT, but I get only a mono display.
On the same machine another application which doesn't use GTK can
successfully display a scene in stereo.

Has anyone else experienced problems with stereo mode?

Cheers...Peter
-- 
====================================================================
Peter Krüger

applied software solutions (appss) GmbH
Sandtorstr. 23
D-39106 Magdeburg
Germany

Phone:  +49-(0)391-54486-19388
Fax:    +49-(0)391-54486-19222
email:  krueger@xxxxxxxx
URL:    http://www.appss.de

Managing Director: Uwe Hess, Dietmar Schäfer
Register: HRB12386, AG Mageburg

"Virtual business becomes reality!"

This e-mail may contain confidential and/or privileged information. If
you are not the intended recipient (or have received this e-mail in
error) please notify the sender immediately and destroy this e-mail. Any
unauthorised copying, disclosure or distribution of the material in this
e-mail is strictly forbidden.
====================================================================

_______________________________________________

gtk-list@xxxxxxxxx
http://mail.gnome.org/mailman/listinfo/gtk-list


[Index of Archives]     [Touch Screen Library]     [GIMP Users]     [Gnome]     [KDE]     [Yosemite News]     [Steve's Art]

  Powered by Linux