Eliminate dynamic_cast in BillboardCallback

components/nifosg/nifloader.cpp

@@ -132,9 +132,8 @@ namespace
 
         virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
         {
-            osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(nv);
-            if (node && cv)
-            {
+            osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(nv);
+
             osg::Matrix modelView = *cv->getModelViewMatrix();
 
             // attempt to preserve scale
@@ -155,9 +154,6 @@ namespace
 
             cv->popModelViewMatrix();
         }
-            else
-                traverse(node, nv);
-        }
     };
 
     struct UpdateMorphGeometry : public osg::Drawable::CullCallback