virtual void apply(osg::Geode& geode)
{
geode.setUpdateCallback(new UpdateCallback());
//note, it makes no sense to attach a cull callback to the node
//at there are no nodes to traverse below the geode, only
//drawables, and as such the Cull node callbacks is ignored.
//If you wish to control the culling of drawables
//then use a drawable cullback...
for(unsigned int i=0;i<geode.getNumDrawables();++i)
{
geode.getDrawable(i)->setUpdateCallback(new DrawableUpdateCallback());
geode.getDrawable(i)->setCullCallback(new DrawableCullCallback());
geode.getDrawable(i)->setDrawCallback(new DrawableDrawCallback());
}
}
