No.. When I searched the mail archive I found the previously linked message. It stated: "It's a bad thing to add/remove items to the scene graph inside an update callback. Apparently, it invalidates the iterators." It was that message that prompted my initial question. /Björn
________________________________ Från: [email protected] [mailto:[email protected]] För Serge Lages Skickat: den 5 maj 2009 13:49 Till: OpenSceneGraph Users Ämne: Re: [osg-users] Adding and removing objects toscenegraphduringruntime? Hi, Did you try to just add an UpdateCallback to your root node for example who makes the job to add or remove nodes ? 2009/5/5 Björn Blissing <[email protected]> Well that will of course be diffrent depending on if I use Viewer or CompositeViewer. Never the less, I still think it is strange that I would be forced to tear down the Viewer.run() functionallity into pieces just to add and remove objects to the scenegraph during runtime. Which (at least to me) would be a pretty trivial feature. But apparently not? /Björn ________________________________ Från: [email protected] [mailto:[email protected]] För Vincent Bourdier Skickat: den 5 maj 2009 13:25 Till: OpenSceneGraph Users Ämne: Re: [osg-users] Adding and removing objects to scenegraphduringruntime? You can just call frame() in the while loop (if I'm right). See what the viewer.run() do, you'll have a good overview of what to use or not. Vincent. 2009/5/5 Björn Blissing <[email protected]> The viewer.sync() and viewer.update() seems to be deprecated. And it seems a bit odd (at least for me) to just throw away the functionallity contained in viewer.run(). I have searched the mail archive but I still can't find any information how to properly add and remove content to the scenegraph during runtime, whilst still using the viewer.run() method. /Björn ________________________________ Från: [email protected] [mailto:[email protected]] För Vincent Bourdier Skickat: den 5 maj 2009 11:32 Till: OpenSceneGraph Users Ämne: Re: [osg-users] Adding and removing objects to scenegraph duringruntime? Hi, I think the most secured way is to do it like that : while( !viewer.done() ) { viewer.sync(); viewer.update(); modify_scene_graph(); viewer.frame(); } If I'm good, the callback allow safe graph modifications, but only on node children... so depending on what you need, that can be a solution too. The subject have been discussed lots of time on the mailing list, so check the archive and you will find some good informations. Regards, Vincent. 2009/5/5 Björn Blissing <[email protected]> Hi! I have my GameObject class that contains the position of each dynamic game object in world coordinates. I also have my GameObjectManager class that contains a vector of all game objects. This vector is empty when the program starts, but populates with objects during runtime (some objects is also removed during runtime). I've searched the mail achieve but I can't find any good example how to add or remove objects to the scenegraph during runtime. I guess it has to be done in some form of callback. But which one? According to http://www.mail-archive.com/[email protected]/msg00725.html it is a bad idea to do it in a updateCallback. Hopefully someone could give me an example or at least point me at the right direction. Maybe there is an osg example I should study in depth? /Björn Blissing _______________________________________________ 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 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Serge Lages http://www.tharsis-software.com
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