Hello Robert,
On a Linux + nVidia I get a crash with latest SVN when running
osgdistortion (notice the this pointer in #0):
(gdb) bt
#0 osg::FrameBufferObject::isMultisample (this=0x0) at
/home/paul/c/osg-svn/src/osg/FrameBufferObject.cpp:802
#1 0x0050638b in osgUtil::RenderStage::drawInner (this=0x8b96778,
[EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED])
at /home/paul/c/osg-svn/src/osgUtil/RenderStage.cpp:787
#2 0x005058d5 in osgUtil::RenderStage::draw (this=0x8b96778,
[EMAIL PROTECTED], [EMAIL PROTECTED])
at /home/paul/c/osg-svn/src/osgUtil/RenderStage.cpp:1090
#3 0x004ffd1e in osgUtil::RenderStage::drawPreRenderStages
(this=0x8a2fa48, [EMAIL PROTECTED], [EMAIL PROTECTED])
at /home/paul/c/osg-svn/src/osgUtil/RenderStage.cpp:210
#4 0x00517ba5 in osgUtil::SceneView::draw (this=0x8a2ed48) at
/home/paul/c/osg-svn/src/osgUtil/SceneView.cpp:1508
#5 0x005c3926 in osgViewer::Renderer::cull_draw (this=0x8a2eb48) at
/home/paul/c/osg-svn/src/osgViewer/Renderer.cpp:530
#6 0x005bede8 in osgViewer::Renderer::operator() (this=0x0,
context=0x8a52b28) at /home/paul/c/osg-svn/src/osgViewer/Renderer.cpp:631
#7 0x002d7faa in osg::GraphicsContext::runOperations (this=0x8a52b28)
at /home/paul/c/osg-svn/src/osg/GraphicsContext.cpp:688
#8 0x005f416a in osgViewer::ViewerBase::renderingTraversals
(this=0xbfea57fc) at /home/paul/c/osg-svn/src/osgViewer/ViewerBase.cpp:694
#9 0x005f1b4d in osgViewer::ViewerBase::frame (this=0xbfea57fc,
simulationTime=1.7976931348623157e+308)
at /home/paul/c/osg-svn/src/osgViewer/ViewerBase.cpp:592
#10 0x005f1c0e in osgViewer::ViewerBase::run (this=0xbfea57fc) at
/home/paul/c/osg-svn/src/osgViewer/ViewerBase.cpp:564
#11 0x005e734f in osgViewer::Viewer::run (this=0xbfea57fc) at
/home/paul/c/osg-svn/src/osgViewer/Viewer.cpp:322
#12 0x08051e1c in main (argc=1, argv=0xbfea59c4) at
/home/paul/c/osg-svn/examples/osgdistortion/osgdistortion.cpp:754
Could it be that a check for FBO support is failing? This particular
graphics card does not have FBO support:
...
OpenGL extension 'GL_EXT_framebuffer_object' is not supported.
...
Paul
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