From Mike Weiblen, "an aesthetic enhancement for displaying important version information."

examples/osglogo/osglogo.cpp

@@ -25,6 +25,7 @@
 #include <osg/PositionAttitudeTransform>
 #include <osg/BlendFunc>
 #include <osg/ClearNode>
+#include <osg/Version>
 
 #include <osgUtil/Tessellator>
 #include <osgUtil/CullVisitor>
@@ -478,6 +479,14 @@ int main( int argc, char **argv )
     std::string label = "OpenSceneGraph";
     std::string subscript = "";
 
+    bool showVersion = false;
+    while (arguments.read("--version")) { showVersion = true; } 
+    if( showVersion )
+    {
+        label += " ";
+        label += osgGetVersion();
+    }
+
     while (arguments.read("--label", label)) {} 
     while (arguments.read("--subscript", subscript)) {}