[osg-users] Bug in Viewer::setReferenceTime
Hi everybody. I was having some trouble with Viewer::setReferenceTime today and while debugging found the issue in the following line [1] double delta_ticks = (time-currentTime)*(osg::Timer::instance()->getSecondsPerTick()); As currentTime and time are given in seconds (see link below for context) but the result should be in ticks, dividing by getSecondsPerTick would be correct. (Apart from that: Thank you for this great library :D) Regards Benjamin [1] https://github.com/openscenegraph/osg/blob/3c55e5bc765aff03ed0850ef9b9b62dc6aabe6a8/src/osgViewer/Viewer.cpp#L446 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Insight into osg::Operation
Okay, sorry for the noise. My problem was a optimizer-run right after the scene was loaded, which of course might collapse groups. Any thoughts on how to optimize in the background anyways? Cheers Sebastian I found out, that the crash occurs when a osg:Group is traversed by the intersection visitor. This is akward.. is the rendering thread somehow modifying children of the scene? cheers Sebastian Hi, I need some help with the osg::Operation. What I'm trying to achieve seems relatively simple. After loading a model, I want some background operation to visit with an intersections visitor. Pseudo code: Load Node Create osg::Operation-derived ref_ptr and do mThreadedOperations->add(operation); viewer->addUpdateOperation(operation); during runtime (e.g. before viewer.frame()) Unfortunately I'm experiencing crashes (vector iterator not dereferenceable etc) in the intersection visitor ( to be more exact: in the node->accept(*mIntersectionVisitor)) It works flawlessly if I let the body of the operation execute blocking after loading. In my osg::Operation::operator()(osg::Object*) implementation I'm using the following scheme: osgViewer::Viewer* viewer = dynamic_cast(callingObject); if (viewer) { return; } else { runTheIntersectionVisitor(); ... } Is there anything else I need to know? Examples for the osg::Operation are rare and I don't see from the given implementation if I need to lock anything. Can someone give some insight on this? Cheers Sebastian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Insight into osg::Operation
I found out, that the crash occurs when a osg:Group is traversed by the intersection visitor. This is akward.. is the rendering thread somehow modifying children of the scene? cheers Sebastian Hi, I need some help with the osg::Operation. What I'm trying to achieve seems relatively simple. After loading a model, I want some background operation to visit with an intersections visitor. Pseudo code: Load Node Create osg::Operation-derived ref_ptr and do mThreadedOperations->add(operation); viewer->addUpdateOperation(operation); during runtime (e.g. before viewer.frame()) Unfortunately I'm experiencing crashes (vector iterator not dereferenceable etc) in the intersection visitor ( to be more exact: in the node->accept(*mIntersectionVisitor)) It works flawlessly if I let the body of the operation execute blocking after loading. In my osg::Operation::operator()(osg::Object*) implementation I'm using the following scheme: osgViewer::Viewer* viewer = dynamic_cast(callingObject); if (viewer) { return; } else { runTheIntersectionVisitor(); ... } Is there anything else I need to know? Examples for the osg::Operation are rare and I don't see from the given implementation if I need to lock anything. Can someone give some insight on this? Cheers Sebastian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org