Hi Ulrich, Nothing special should be required when removing a PageLOD database from the scene graph. One should just need to take the usual care about threading. The fact that you are getting a crash in osgTerrain does suggest that the DatabasePager thread is trying to do something on a scene graph that it doesn't have a reference to, but what code this might be I just can't say without at least a stack trace.
Robert. On Tue, Jun 2, 2009 at 11:29 AM, Ulrich Hertlein <[email protected]> wrote: > Hi all, > > are there any special steps involved to unload a PagedLOD database? > What I want to do is release the main memory and OpenGL resources associated > with a PagedLOD. > > My setup is roughtly the following: > - osgViewer::Viewer in single-threaded mode > - rendering is triggered on-demand by calling 'viewer->frame()' > - osg::Group* sceneNode and osg::Node* modelNode (both as osg::ref_ptr) > - to release the model I call sceneNode->removeChild(modelNode) and then set > modelNode = 0 to invalidate the ref_ptr > - after that the frame draw is not triggered anymore. > > This works *most* of the times but I sporadicly get a crash in > osgTerrain::traverse which appears like there is some thread still running > on the database. > > Cheers, > /ulrich > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
