Added .osg support for osgShadow NodeKit

src/osgPlugins/osgShadow/ShadowedScene.cpp

@@ -0,0 +1,53 @@
+#include <osgShadow/ShadowedScene>
+
+#include <iostream>
+#include <string>
+
+#include <osg/Vec3>
+#include <osg/Vec4>
+#include <osg/io_utils>
+
+#include <osgDB/Registry>
+#include <osgDB/Input>
+#include <osgDB/Output>
+#include <osgDB/ParameterOutput>
+
+bool ShadowedScene_readLocalData(osg::Object &obj, osgDB::Input &fr);
+bool ShadowedScene_writeLocalData(const osg::Object &obj, osgDB::Output &fw);
+
+osgDB::RegisterDotOsgWrapperProxy ShadowedScene_Proxy
+(
+    new osgShadow::ShadowedScene,
+    "ShadowedScene",
+    "Object ShadowedScene Group ",
+    ShadowedScene_readLocalData,
+    ShadowedScene_writeLocalData
+);
+
+bool ShadowedScene_readLocalData(osg::Object& obj, osgDB::Input &fr)
+{
+    osgShadow::ShadowedScene& ss = static_cast<osgShadow::ShadowedScene&>(obj);
+    bool iteratorAdvanced = false;
+
+    osg::ref_ptr<osg::Object> object=0;
+    while((object=fr.readObject())!=0)
+    {
+        osgShadow::ShadowTechnique* st = dynamic_cast<osgShadow::ShadowTechnique*>(object.get());
+        if (st) ss.setShadowTechnique(st);
+        iteratorAdvanced = true;
+    }
+
+    return iteratorAdvanced;
+}
+
+bool ShadowedScene_writeLocalData(const osg::Object& obj, osgDB::Output& fw)
+{
+    const osgShadow::ShadowedScene& ss = static_cast<const osgShadow::ShadowedScene &>(obj);
+    
+    if (ss.getShadowTechnique())
+    {
+        fw.writeObject(*ss.getShadowTechnique());
+    }
+
+    return true;
+}