diff --git a/include/osg/Camera b/include/osg/Camera
index 2bf23ee1d..3a2219a57 100644
--- a/include/osg/Camera
+++ b/include/osg/Camera
@@ -680,6 +680,19 @@ class OSG_EXPORT Camera : public Transform, public CullSettings
         ref_ptr<DrawCallback>               _finalDrawCallback;
 };
 
+
+/** Functor to assist with ordering camers in the order they should be rendered in.*/
+struct CameraRenderOrderSortOp
+{
+    inline bool operator() (const Camera* lhs,const Camera* rhs) const
+    {
+        if (lhs->getRenderOrder()<rhs->getRenderOrder()) return true;
+        if (rhs->getRenderOrder()<lhs->getRenderOrder()) return false;
+        return lhs->getRenderOrderNum()<rhs->getRenderOrderNum();
+    }
+};
+
+
 }
 
 #endif
diff --git a/src/osg/GraphicsContext.cpp b/src/osg/GraphicsContext.cpp
index 037b459cc..df2e2492f 100644
--- a/src/osg/GraphicsContext.cpp
+++ b/src/osg/GraphicsContext.cpp
@@ -754,18 +754,6 @@ void GraphicsContext::removeAllOperations()
     _operationsBlock->set(false);
 }
 
-
-struct CameraRenderOrderSortOp
-{
-    inline bool operator() (const Camera* lhs,const Camera* rhs) const
-    {
-        if (lhs->getRenderOrder()<rhs->getRenderOrder()) return true;
-        if (rhs->getRenderOrder()<lhs->getRenderOrder()) return false;
-        return lhs->getRenderOrderNum()<rhs->getRenderOrderNum();
-    }
-};
-
-
 void GraphicsContext::runOperations()
 {
     // sort the cameras into order
diff --git a/src/osgViewer/CompositeViewer.cpp b/src/osgViewer/CompositeViewer.cpp
index 85045e898..3e7e713c3 100644
--- a/src/osgViewer/CompositeViewer.cpp
+++ b/src/osgViewer/CompositeViewer.cpp
@@ -837,7 +837,6 @@ void CompositeViewer::generateSlavePointerData(osg::Camera* camera, osgGA::GUIEv
     }
 }
 
-
 void CompositeViewer::generatePointerData(osgGA::GUIEventAdapter& event)
 {
     osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(event.getGraphicsContext());
@@ -852,6 +851,9 @@ void CompositeViewer::generatePointerData(osgGA::GUIEventAdapter& event)
     event.addPointerData(new osgGA::PointerData(gw, x, 0, gw->getTraits()->width,
                                                     y, 0, gw->getTraits()->height));
 
+    typedef std::vector<osg::Camera*> CameraVector;
+    CameraVector activeCameras;
+
     osg::GraphicsContext::Cameras& cameras = gw->getCameras();
     for(osg::GraphicsContext::Cameras::iterator citr = cameras.begin();
         citr != cameras.end();
@@ -866,20 +868,31 @@ void CompositeViewer::generatePointerData(osgGA::GUIEventAdapter& event)
                 x >= viewport->x() && y >= viewport->y() &&
                 x <= (viewport->x()+viewport->width()) && y <= (viewport->y()+viewport->height()) )
             {
-                event.addPointerData(new osgGA::PointerData(camera, (x-viewport->x())/viewport->width()*2.0f-1.0f, -1.0, 1.0,
-                                                                    (y-viewport->y())/viewport->height()*2.0f-1.0f, -1.0, 1.0));
-
-                osgViewer::View* view = dynamic_cast<osgViewer::View*>(camera->getView());
-                osg::Camera* view_masterCamera = view ? view->getCamera() : 0;
-
-                // if camera isn't the master it must be a slave and could need reprojecting.
-                if (view && camera!=view_masterCamera)
-                {
-                    generateSlavePointerData(camera, event);
-                }
+                activeCameras.push_back(camera);
             }
         }
     }
+
+    std::sort(activeCameras.begin(), activeCameras.end(), osg::CameraRenderOrderSortOp());
+
+    osg::Camera* camera = activeCameras.empty() ? 0 : activeCameras.back();
+
+    if (camera)
+    {
+        osg::Viewport* viewport = camera ? camera->getViewport() : 0;
+
+        event.addPointerData(new osgGA::PointerData(camera, (x-viewport->x())/viewport->width()*2.0f-1.0f, -1.0, 1.0,
+                                                            (y-viewport->y())/viewport->height()*2.0f-1.0f, -1.0, 1.0));
+
+        osgViewer::View* view = dynamic_cast<osgViewer::View*>(camera->getView());
+        osg::Camera* view_masterCamera = view ? view->getCamera() : 0;
+
+        // if camera isn't the master it must be a slave and could need reprojecting.
+        if (view && camera!=view_masterCamera)
+        {
+            generateSlavePointerData(camera, event);
+        }
+    }
 }
 
 void CompositeViewer::reprojectPointerData(osgGA::GUIEventAdapter& source_event, osgGA::GUIEventAdapter& dest_event)
diff --git a/src/osgViewer/Viewer.cpp b/src/osgViewer/Viewer.cpp
index 613e21b9f..177eb95aa 100644
--- a/src/osgViewer/Viewer.cpp
+++ b/src/osgViewer/Viewer.cpp
@@ -784,7 +784,9 @@ void Viewer::generatePointerData(osgGA::GUIEventAdapter& event)
     event.addPointerData(new osgGA::PointerData(gw, x, 0, gw->getTraits()->width,
                                                     y, 0, gw->getTraits()->height));
 
-    // new code for populating the PointerData
+    typedef std::vector<osg::Camera*> CameraVector;
+    CameraVector activeCameras;
+
     osgViewer::View* this_view = dynamic_cast<osgViewer::View*>(this);
     osg::GraphicsContext::Cameras& cameras = gw->getCameras();
     for(osg::GraphicsContext::Cameras::iterator citr = cameras.begin();
@@ -801,17 +803,28 @@ void Viewer::generatePointerData(osgGA::GUIEventAdapter& event)
                 x >= viewport->x() && y >= viewport->y() &&
                 x <= (viewport->x()+viewport->width()) && y <= (viewport->y()+viewport->height()) )
             {
-                event.addPointerData(new osgGA::PointerData(camera, (x-viewport->x())/viewport->width()*2.0f-1.0f, -1.0, 1.0,
-                                                                    (y-viewport->y())/viewport->height()*2.0f-1.0f, -1.0, 1.0));
-
-                // if camera isn't the master it must be a slave and could need reprojecting.
-                if (camera!=getCamera())
-                {
-                    generateSlavePointerData(camera, event);
-                }
+                activeCameras.push_back(camera);
             }
         }
     }
+
+    std::sort(activeCameras.begin(), activeCameras.end(), osg::CameraRenderOrderSortOp());
+
+    osg::Camera* camera = activeCameras.empty() ? 0 : activeCameras.back();
+
+    if (camera)
+    {
+        osg::Viewport* viewport = camera ? camera->getViewport() : 0;
+
+        event.addPointerData(new osgGA::PointerData(camera, (x-viewport->x())/viewport->width()*2.0f-1.0f, -1.0, 1.0,
+                                                            (y-viewport->y())/viewport->height()*2.0f-1.0f, -1.0, 1.0));
+
+        // if camera isn't the master it must be a slave and could need reprojecting.
+        if (camera!=getCamera())
+        {
+            generateSlavePointerData(camera, event);
+        }
+    }
 }
 
 void Viewer::reprojectPointerData(osgGA::GUIEventAdapter& source_event, osgGA::GUIEventAdapter& dest_event)