diff --git a/include/osgViewer/View b/include/osgViewer/View
index fb4b1d0fa..783522ab4 100644
--- a/include/osgViewer/View
+++ b/include/osgViewer/View
@@ -305,6 +305,8 @@ class OSGVIEWER_EXPORT View : public osg::View, public osgGA::GUIActionAdapter
         virtual void requestContinuousUpdate(bool needed=true);
         virtual void requestWarpPointer(float x,float y);
 
+        /** Return true if there are pending updates to the scene graph that require an update. */
+        bool requiresUpdateSceneGraph() const;
 
     public:
 
diff --git a/src/osgViewer/CompositeViewer.cpp b/src/osgViewer/CompositeViewer.cpp
index 0ddc3f3e4..67a9a9e9d 100644
--- a/src/osgViewer/CompositeViewer.cpp
+++ b/src/osgViewer/CompositeViewer.cpp
@@ -245,34 +245,23 @@ bool CompositeViewer::isRealized() const
 
 bool CompositeViewer::checkNeedToDoFrame()
 {
+    // check if any event handler has prompted a redraw
     if (_requestRedraw) return true;
     if (_requestContinousUpdate) return true;
 
+    // check if any view needs to update the scene graph
     for(RefViews::iterator itr = _views.begin();
         itr != _views.end();
         ++itr)
     {
         osgViewer::View* view = itr->get();
-        if (view)
-        {
-            // check if the database pager needs to update the scene
-            if (view->getDatabasePager()->requiresUpdateSceneGraph() ||
-                view->getDatabasePager()->getRequestsInProgress()) return true;
-
-            // check if there are camera update callbacks
-            if (view->getCamera()->getUpdateCallback()) return true;
-
-            // check if there are node update callbacks
-            if (view->getSceneData() != 0)
-            {
-                if (view->getSceneData()->getUpdateCallback() || (view->getSceneData()->getNumChildrenRequiringUpdateTraversal()>0) ) return true;
-            }
-        }
+        if (view && view->requiresUpdateSceneGraph()) return true;
     }
 
     // check if events are available and need processing
     if (checkEvents()) return true;
 
+    // and check again if any event handler has prompted a redraw
     if (_requestRedraw) return true;
     if (_requestContinousUpdate) return true;
 
diff --git a/src/osgViewer/View.cpp b/src/osgViewer/View.cpp
index 214a137b9..6ceeca6cd 100644
--- a/src/osgViewer/View.cpp
+++ b/src/osgViewer/View.cpp
@@ -1130,6 +1130,23 @@ void View::removeDevice(osgGA::Device* eventSource)
     }
 }
 
+bool View::requiresUpdateSceneGraph() const
+{
+    // check if the database pager needs to update the scene
+    if (getDatabasePager()->requiresUpdateSceneGraph() || getDatabasePager()->getRequestsInProgress()) return true;
+
+    // check if there are camera update callbacks
+    if (_camera->getUpdateCallback()) return true;
+
+    // check if there are node update callbacks
+    if (getSceneData() != 0)
+    {
+        if (getSceneData()->getUpdateCallback() || (getSceneData()->getNumChildrenRequiringUpdateTraversal()>0)) return true;
+    }
+
+    return false;
+}
+
 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 //
 // Methods that support Stereo and Keystone correction.
diff --git a/src/osgViewer/Viewer.cpp b/src/osgViewer/Viewer.cpp
index dc88a24d3..7f383f3eb 100644
--- a/src/osgViewer/Viewer.cpp
+++ b/src/osgViewer/Viewer.cpp
@@ -362,17 +362,8 @@ bool Viewer::checkNeedToDoFrame()
     if (_requestRedraw) return true;
     if (_requestContinousUpdate) return true;
 
-    // check if the database pager needs to update the scene
-    if (getDatabasePager()->requiresUpdateSceneGraph() || getDatabasePager()->getRequestsInProgress()) return true;
-
-    // check if there are camera update callbacks
-    if (_camera->getUpdateCallback()) return true;
-
-    // check if there are node update callbacks
-    if (getSceneData() != 0)
-    {
-        if (getSceneData()->getUpdateCallback() || (getSceneData()->getNumChildrenRequiringUpdateTraversal()>0) ) return true;
-    }
+    // check if the view needs to update the scene graph
+    if (requiresUpdateSceneGraph()) return true;
 
     // check if events are available and need processing
     if (checkEvents()) return true;