Hi Paul, I think there is a better way to set your own visitor, maybe doing:
osgUtil::CullVisitor::prototype()=new MyVisitor(); if you do this before realize() (or run()), then the viewer uses the prototype of the cull visitor. Rafa. On Tue, Nov 10, 2009 at 3:23 PM, <[email protected]> wrote: > Thanks for the quick response... > > Did this: > render->getSceneView(0)->setCullVisitor(cv); > render->getSceneView(1)->setCullVisitor(cv); > > and now I'm getting: > Warning:createOrReuseRenderLeaf() skipping multiply refrenced entry. > Warning:createOrReuseRenderLeaf() skipping multiply refrenced entry. > Warning:createOrReuseRenderLeaf() skipping multiply refrenced entry. > Warning:createOrReuseRenderLeaf() skipping multiply refrenced entry. > > Paul P. > > > ----- Original Message ---- > From: Jean-Sébastien Guay <[email protected]> > To: OpenSceneGraph Users <[email protected]> > Sent: Tue, November 10, 2009 8:57:38 AM > Subject: Re: [osg-users] Setting CullVisitor > > Hi Paul, > >> Why do I have multiple SceneViews? > > There are always two SceneViews if you're using multithreading - they're used > on alternating frames as you've seen. Just set your CullVisitor for both, or > a separate instance of your CullVisitor for each instance. > > Whenever I've had to change something on SceneView instances, I had to do it > on both instances. I expect if your CullVisitor has some local state, you'd > have to use two separate instances, one for each SceneView, so that threading > works correctly and doesn't try to modify data that's being read in another > thread. > >> I need my own CullVisitor because I've defined my own node type that needs >> special cull handling. > > You could just override the traverse() method of your node type, that's how I > normally do it. It keeps changes local to the overridden node class instead > of propagating changes to other parts of the app. > > void traverse(osg::NodeVisitor& nv) > { > if (nv.getVisitorType() == osg::NodeVisitor::CULL_VISITOR) > { > osgUtil::CullVisitor* cv = > dynamic_cast<osgUtil::CullVisitor*>(&nv); > > // ... > } > osg::Node::traverse(nv); // call base class version. > // (replace Node by whatever the base class of your overridden > // node type is) > } > > Hope this helps, > > J-S > -- ______________________________________________________ > Jean-Sebastien Guay [email protected] > http://www.cm-labs.com/ > http://whitestar02.webhop.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 > -- Rafael Gaitán Linares Instituto de Automática e Informática Industrial http://www.ai2.upv.es Ciudad Politécnica de la Innovación Universidad Politécnica de Valencia _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
