Hi Mike, I tried to do some debugging with regards to the PAT issue I added and it has something to do with the finalizer being run a NodeVisitor object, but that's about as far as I got. I couldn't understand why it would be an issue for nodes containing particle systems, but other nodes are fine. I think it has something to do with the adapter pattern being used that allows a user to subclass Nodes in C#, but I haven't gotten any further.
Jason On 9/25/07, Christophe Medard <[EMAIL PROTECTED]> wrote: > > Hi Mike, > > Thanks for telling me the same kind of thing was already reported ! > I understand passin in OSG 2.1.12 would do no good. > > Thanks also for confirming the OSG reference count management being done > by the wrapper layer in a .NET Managed-fashion... > > It's quite hard to find the root cause indeed, since it seems to depend on > independant factor, like where the camera is -initially- positionned : I > only get the problem when letting osgViewer set it away from the scene (no > osgViewer.getCameraManipulator().setHomePosition() call in my mainloop). > There's something about an intersect visitor apparently (a culling pass ?). > One could think it's only where the AccessViolation first occur. I'm not > sure : if I initialize the camera close to the scene geometry, not only does > my AccessViolation vanish, but I don't have the OSG Notice warning about a > possible problem anymore either. That whether I leave space between my point > of the scene and scene geometry through manipulator's behaviour afterwards > in the run time of my application... > > Anyway, if anyone happen to lock the root cause, please don't hesitate to > post ! > > -- > Christophe Médard > Société OKTAL (http://www.oktal.fr) > 2 impasse Boudeville > 31100 Toulouse (France) > Tél. : (+33) 5 62 11 50 10 > Fax : (+33) 5 62 11 50 29 > > > > ----- Original Message ----- > *From:* Mike Wittman <[EMAIL PROTECTED]> > *To:* OpenSceneGraph Users <[email protected]> > *Sent:* Tuesday, September 25, 2007 3:58 PM > *Subject:* Re: [osg-users] osgDotNet : Nodes adding to scene graph > outsidemain()function scope > > Hi Christophe, > > > > This sounds like a bug that Jason reported where a particle system under a > PAT node gives the same symptoms - > http://www.openscenegraph.org/projects/osgDotNet/ticket/1. I've dug into > that problem some, but only enough to know that it will take quite a bit > more time to track down the root cause. > > > > You're correct about the reference count management; it's intended to be > completely handled by the wrappers and transparent to the C# user. > Obviously something is going wrong in this particular case. > > > > *Mike Wittman* > > [EMAIL PROTECTED] > > *___________________________________________________* > > *Seismic Micro-Technology, Inc.* > > *8584 Katy Freeway, **Suite 400 / Houston, Texas 77024* > > *Tel. +1 (713) 464-6188* > > *Fax. +1 (713) 464-6440* > > *Web: www.seismicmicro.com* > > *___________________________________________________* > > *CONTACT US TODAY for more information.* > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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