Added initial render to texture functionality into osgVolume::VolumeScene

examples/osgvolume/osgvolume.cpp

@@ -49,6 +49,7 @@
 #include <osgGA/TrackballManipulator>
 #include <osgGA/FlightManipulator>
 #include <osgGA/KeySwitchMatrixManipulator>
+#include <osgGA/StateSetManipulator>
 
 #include <osgUtil/CullVisitor>
 
@@ -490,6 +491,9 @@ int main( int argc, char **argv )
     // add the stats handler
     viewer.addEventHandler(new osgViewer::StatsHandler);
 
+    // add stateset manipulator
+    viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
+
     viewer.getCamera()->setClearColor(osg::Vec4(0.0f,0.0f,0.0f,0.0f));
 
     // if user request help write it out to cout.
@@ -1225,6 +1229,8 @@ int main( int argc, char **argv )
         }
 
 
+
+
         // set the scene to render
         viewer.setSceneData(loadedModel.get());