Added new demo osgprerender to demonstrate how to prerender a scene and use

the result in the main rendering for special effects.

VisualStudio/VisualStudio.dsw

@@ -888,6 +888,60 @@ Package=<4>
 
 
 
+Project: "Demo osgprerender"=.\Demos\osgpreprender\osgprerender.dsp - Package Owner=<4>
+
+
+
+Package=<5>
+
+{{{
+
+}}}
+
+
+
+Package=<4>
+
+{{{
+
+    Begin Project Dependency
+
+    Project_Dep_Name Core osg
+
+    End Project Dependency
+
+    Begin Project Dependency
+
+    Project_Dep_Name Core osgDB
+
+    End Project Dependency
+
+    Begin Project Dependency
+
+    Project_Dep_Name Core osgGA
+
+    End Project Dependency
+
+    Begin Project Dependency
+
+    Project_Dep_Name Core osgGLUT
+
+    End Project Dependency
+
+    Begin Project Dependency
+
+    Project_Dep_Name Core osgUtil
+
+    End Project Dependency
+
+}}}
+
+
+
+###############################################################################
+
+
+
 Project: "Demo osgreflect"=.\Demos\osgreflect\osgreflect.dsp - Package Owner=<4>