I am running a program with a composite viewer which contains one viewer for
pure openGL rendering and multiple other views for scene rendering. The scene
consists of any number of loaded 3d models and a TerraPage database. The code
is set up as follows (I have copy/pasted and inserted pseudo code as the
program is not compact enough to fully include. If any omitted parts are
important, let me know and I'll post them!):
this->_view = new osgViewer::Viewer;
this->_view->setName("_view");
this->_view->setSceneData(this->_sceneGroup.get());
this->_compositeViewer = new osgViewer::CompositeViewer;
this->_compositeViewer->setName("_compositeViewer");
this->_compositeViewer->addView(this->_view);
// Set up Traits ...
// Set up Graphics Context...
// Set up Display Settings
this->_view->setThreadingModel(osgViewer::Viewer::SingleThreaded);
this->_view->setUpThreading();
this->_view->startThreading();
this->_compositeViewer->setThreadingModel(osgViewer::Viewer::SingleThreaded);
this->_compositeViewer->realize();
this->_view->getCamera()->setInitialDrawCallback(new
CameraInitialDrawCallback(this));
this->_view->getCamera()->setFinalDrawCallback(new
CameraFinalDrawCallback(this));
this->_compositeViewer->setUpThreading();
this->_compositeViewer->startThreading();
while(...)
{
this->_compositeViewer->frame();
}
Other views are added via:
void ...addViewer(osgViewer::Viewer* x)
{
const unsigned int viewSize = this->_compositeViewer->getNumViews();
for(unsigned int i = 0; i < viewSize; i++)
{
if(this->_compositeViewer->getView(i) == x)
{
return;
}
}
x->setThreadingModel(osgViewer::Viewer::SingleThreaded);
x->addEventHandler(this->_eventHandler);
x->setKeyEventSetsDone(24);
x->setUpThreading();
x->startThreading();
this->_compositeViewer->addView(x);
}
These other views have a database pager attached to them:
this->_scene = this->_viewer->getScene();
if(this->_scene->getDatabasePager() == NULL)
{
this->_scene->setDatabasePager(new osgDB::DatabasePager);
this->_scene->getDatabasePager()->setTargetFrameRate(60.0f);
this->_scene->getDatabasePager()->registerPagedLODs(this->getSceneManager()->getTerrainDatabase());
}
Just a few frames into the applicaiton, it can crash. It appears as though all
threads continue to run except for the database pager. I get the following
stack trace with the current version on SVN:
>osg60-osg.dll!osg::BoundingBoxImpl<osg::Vec3f>::expandBy(const osg::Vec3f &
>v={...}) Line 152C++
osg60-osg.dll!ComputeBound::drawArrays(unsigned int __formal=5, int first=354,
int count=1197852551) Line 706 + 0x2f bytesC++
osg60-osg.dll!osg::DrawArrayLengths::accept(osg::PrimitiveFunctor &
functor={...}) Line 92C++
osg60-osg.dll!osg::Geometry::accept(osg::PrimitiveFunctor & functor={...})
Line 2241 + 0x29 bytesC++
osg60-osg.dll!osg::Drawable::computeBound() Line 781C++
osg60-osg.dll!osg::Drawable::getBound() Line 203 + 0xe bytesC++
osg60-osg.dll!osg::Geode::computeBound() Line 192 + 0x1e bytesC++
osg60-osg.dll!osg::Node::getBound() Line 334 + 0xe bytesC++
osg60-osg.dll!osg::Group::computeBound() Line 357 + 0x16 bytesC++
osg60-osg.dll!osg::Node::getBound() Line 334 + 0xe bytesC++
osg60-osg.dll!osg::Group::computeBound() Line 357 + 0x16 bytesC++
osg60-osg.dll!osg::Node::getBound() Line 334 + 0xe bytesC++
osg60-osg.dll!osg::Group::computeBound() Line 357 + 0x16 bytesC++
osgdb_txp.dll!txp::TXPPagedLOD::computeBound() Line 121C++
osg60-osg.dll!osg::Node::getBound() Line 334 + 0xe bytesC++
osg60-osg.dll!osg::Group::computeBound() Line 357 + 0x16 bytesC++
osg60-osg.dll!osg::Node::getBound() Line 334 + 0xe bytesC++
osg60-osgDB.dll!osgDB::DatabasePager::DatabaseThread::run() Line 607C++
ot11-OpenThreads.dll!OpenThreads::ThreadPrivateActions::StartThread(void *
data=0x037c9d5c) Line 65535C++
msvcr90.dll!_callthreadstartex() Line 348 + 0x6 bytesC
msvcr90.dll!_threadstartex(void * ptd=0x06aae2e8) Line 326 + 0x5 bytesC
kernel32.dll!7c80b729()
[Frames below may be incorrect and/or missing, no symbols loaded for
kernel32.dll]
I am not an OSG expert by any means, but have been trying to fix this for over
a week and just don't have any insight into what might cause this. Any help
would be appreciated!
- John
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