[osg-users] quad buffer stereo problem in an embedded window

[Evan Suma]

Hello all,

I am having an issue with quad buffer stereo in OpenSceneGraph 2.0.
osgViewer does not seem to set up quad buffer stereo correctly when run as
an embedded window.  I added the following 2 lines of code to the
osgViewerQT example, which was running fine without stereo:

osg::DisplaySettings::instance()->setStereoMode(osg::DisplaySettings::StereoMode::QUAD_BUFFER);
osg::DisplaySettings::instance()->setStereo(true);

This produces the following error at runtime:

Warning: detected OpenGL error 'invalid operation' after RenderBin::draw(,)

Please be aware that stereo is enabled on my machine.  I have tested quad
buffer stereo in other OpenSceneGraph applications (which do not embed the
viewer in a window) and it produces the correct result.  Is anyone aware of
this issue?  Is there some additional setup I have to do in order to get
quad buffer stereo working with the osgViewerQT example?

Thanks,
Evan

--------------------
Evan A. Suma
Ph.D. Student
Future Computing Lab
University of North Carolina at Charlotte
http://www.evansuma.com
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