Hi, I wonder if anyone can offer some insight on why I may be experiencing these random crashes.
Essentially I have many line intersection visitors following a node which is moving through the scene and performing line intersections on terrain, which is a pagedLOD database of proxynodes. This is done in a multithreaded fashion, i.e. there are many threads each with a lineSegmentIntersector and intersectionVisitor of its own. By and large, it works great, but on very rare and seemingly random occasions the application crashes with a segmentation fault. It traces to the accept call, where I am calling the terrain's group node's accept function on an intersection visitor. A human-friendly version of the backtrace is as follows: Code: osg::Group::computeBound at Group.cpp osg::LOD::computeBound at LOD.cpp getBound at Node.cpp isCullingActive at Node.cpp enter at LineSegmentIntersector.cpp enter at IntersectionVisitor.cpp accept at Group.cpp traverse at Group.cpp apply at IntersectionVisitor.cpp accept at Group.cpp The code that performs the actual intersection looks like this: Code: lineSegmentIntersector->setStart(start); lineSegmentIntersector->setEnd(end); intersectionVisitor->reset(); root->accept(*intersectionVisitor); It's possible I am doing something evil with this multithreading setup that I am unaware of (please tell me!), but since everything works 99.9% of the time, I suspect there is something more subtle going on. I am running OSG 3.0.1 in C++. Thanks, Stathibus ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=54021#54021 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
