Hi Nick, On Thu, Feb 4, 2010 at 4:33 PM, Trajce Nikolov <[email protected]> wrote: > hi Robert, > just for the sake of clarification .... I dont have circular scenegraph.
Errr.... what you describe below is a circular scene graph, UserData is still part of the scene graph, it's reference counted and still needs to be treated like part of the scene graph. Same applies to any data structure in your application. > But > what I do have, I put in userdata nodes from the scene graph. In > Node::setThreadSaferefUnref() you are setting that for the userdata as well. > And from here I get into circle, because the user data contains nodes, that > further in the scene can point to the node that is setting the > ThreadSafeRefUnref (complex scene, mirrors etc, so istenad of creating > custom nodes I use UserData). You need to remove the circular reference, the setTheadSafeRefUnref() is also something you should be able to remove. With thread safe ref/unref is something you should decide on construction of your objects, and is typically done by passing a flag into the Referenced(bool) constructor. Please note that scene graph objects *should* almost always leave the thread safe ref/unref one, it's only in very specific single threaded data structures that you can consider the possibility of switching off thread safe ref/unref. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
