// Initialize GLUT & OpenSG and set up the scene
int doMain(int argc, char **argv)
{
    printf("Press key '1', '2', or '3' to toggle the light sources.\n");
    // OSG init
    OSG::osgInit(argc,argv);

    // GLUT init
    int winid = setupGLUT(&argc, argv);

    // the connection between GLUT and OpenSG
    OSG::GLUTWindowUnrecPtr gwin= OSG::GLUTWindow::create();

    gwin->setGlutId(winid);
    gwin->setSize( 800, 800 );
    gwin->init();

    // Create the shader material

    OSG::ChunkMaterialUnrecPtr cmat = OSG::ChunkMaterial::create();

    OSG::MaterialChunkUnrecPtr matc = OSG::MaterialChunk::create();

    matc->setAmbient(OSG::Color4f(0.1f, 0.1f, 0.1f, 1.0f));
    matc->setDiffuse(OSG::Color4f(0.3f, 0.3f, 0.3f, 1.0f));
    matc->setSpecular(OSG::Color4f(0.8f, 0.8f, 0.8f, 1.0f));
    matc->setShininess(100);
    matc->setLit(true);

    OSG::ShaderProgramChunkUnrecPtr shl = OSG::ShaderProgramChunk::create();

    OSG::ShaderProgramUnrecPtr shl_vp = 
        OSG::ShaderProgram::createVertexShader();

    shl_vp->setProgram(_vp_program);

    shl->addShader(shl_vp);

    OSG::ShaderProgramUnrecPtr shl_fp = 
        OSG::ShaderProgram::createFragmentShader();

    shl_fp->setProgram(_fp_program);

    shl->addShader(shl_fp);

    shl_vp->addProceduralVariable    ("Light0Active", &light0Active);
    shl_vp->addProceduralVariable    ("Light1Active", &light1Active);
    shl_vp->addNodeProceduralVariable("Light2Active", &light2Active);

    cmat->addChunk(matc);
    cmat->addChunk(shl);

    // create root node
    _scene = OSG::Node::create();

    // create two light sources.

    OSG::TransformUnrecPtr point1_trans;

    OSG::NodeUnrecPtr point1        = 
        OSG::makeCoredNode<OSG::PointLight>(&_point1_core);
    point1_beacon = OSG::makeCoredNode<OSG::Transform >(&point1_trans);

    point1_trans->editMatrix().setTranslate(-10.0, 5.0, 5.0);

    _point1_core->setAmbient(0.0f, 0.0f, 0.0f , 1.0f);
    _point1_core->setDiffuse(1.0f, 0.0f, 0.0f, 1.0f);
    _point1_core->setSpecular(1.0f, 1.0f, 1.0f, 1.0f);
    _point1_core->setBeacon(point1_beacon);
    _point1_core->setOn(true);


    OSG::TransformUnrecPtr point2_trans;

    OSG::NodeUnrecPtr point2        =
        OSG::makeCoredNode<OSG::PointLight>(&_point2_core);
    point2_beacon = OSG::makeCoredNode<OSG::Transform >(&point2_trans);

    point2_trans->editMatrix().setTranslate(10.0, 5.0, 5.0);

    _point2_core->setAmbient(0.0f, 0.0f, 0.0f, 1.0f);
    _point2_core->setDiffuse(0.0f, 1.0f, 0.0f, 1.0f);
    _point2_core->setSpecular(1.0f, 1.0f, 1.0f, 1.0f);
    _point2_core->setBeacon(point2_beacon);
    _point2_core->setOn(true);

    point1->addChild(point2);
    
    OSG::TransformUnrecPtr point3_trans;

    OSG::NodeUnrecPtr point3        = 
        OSG::makeCoredNode<OSG::PointLight>(&_point3_core);
    
    point3_beacon = OSG::makeCoredNode<OSG::Transform >(&point3_trans);

    point3_trans->editMatrix().setTranslate(0.0, -12.0, 5.0);

    _point3_core->setAmbient(0.0f, 0.0f, 0.0f, 1.0f);
    _point3_core->setDiffuse(0.5f, 0.0f, 1.0f, 1.0f);
    _point3_core->setSpecular(1.0f, 1.0f, 1.0f, 1.0f);
    _point3_core->setBeacon(point3_beacon);
    _point3_core->setOn(true);

    point2->addChild(point3);


    // create a sphere.
    OSG::GeometryUnrecPtr geo = OSG::makeLatLongSphereGeo (100, 100, 1.0);

    geo->setMaterial(cmat);


    OSG::NodeUnrecPtr sphere = OSG::makeNodeFor(geo);

    point3->addChild(sphere);


    _scene->setCore(OSG::Group::create());
    _scene->addChild(point1);

    // create the SimpleSceneManager helper
    _mgr = OSG::SimpleSceneManager::create();

    // tell the manager what to manage
    _mgr->setWindow(gwin );
    _mgr->setRoot(_scene);

    _mgr->turnHeadlightOff();

    // show the whole scene
    _mgr->showAll();

    // enable local lights.
//    OSG::RenderAction *ract = 
//        dynamic_cast<OSG::RenderAction *>(_mgr->getRenderAction());

//    ract->setLocalLights(true);

    return 0;
}
// Initialize GLUT & OpenSG and set up the scene
int doMain(int argc, char **argv)
{
    printf("Press key '9' or '0' to toggle light sources.\n");
    printf("Set the shadow mode with key '1' ... '8'\n");
    printf("Change MapSize with keys 'y' = 512, 'x' = 1024, 'c' = 2048\n");
    printf("NOTE: Real point lights only supported for ShadowMode 1...6!\n");
    // OSG init
    OSG::osgInit(argc, argv);

    // GLUT init
    int                     winid = setupGLUT(&argc, argv);
    gwin = OSG::GLUTWindow::create();

    //Erstellen der ben�tigten Komponenten--------------------------------------

    rootNode = OSG::makeCoredNode<OSG::Group>();
    OSG::NodeUnrecPtr                 scene = OSG::makeCoredNode<OSG::Group>();

    /*
    // create lights
    //Directional Light 1
    OSG::NodeUnrecPtr light1        = OSG::makeCoredNode<OSG::DirectionalLight>(&_light1_core);
    OSG::NodeUnrecPtr light1_beacon = OSG::makeCoredNode<OSG::Transform>(&_light1_trans);
    _light1_trans->editMatrix().setTranslate(0.0, 0.0, 0.0);
    _light1_core->setDirection(0.8,0.8,0.5);
    _light1_core->setAmbient(0.15,0.15,0.15,1);
    _light1_core->setDiffuse(0.5,0.5,0.5,1);
    _light1_core->setSpecular(0.0,0.0,0.0,1);
    _light1_core->setBeacon(light1_beacon);
    _light1_core->setShadowIntensity(0.7);
    _light1_core->setOn(true);
    */

    // Point Light 1
    OSG::NodeUnrecPtr light1        = OSG::makeCoredNode<OSG::PointLight>(&_light1_core);
    OSG::NodeUnrecPtr light1_beacon = OSG::makeCoredNode<OSG::Transform >(&_light1_trans);
    _light1_trans->editMatrix().setTranslate(50.0, 50.0, 10.0);

    _light1_core->setAmbient(0.15f, 0.15f, 0.15f, 1);
    _light1_core->setDiffuse(0.5f, 0.5f, 0.5f, 1);
    _light1_core->setSpecular(0.0f, 0.0f, 0.0f, 1);
    _light1_core->setBeacon(light1_beacon);
    _light1_core->setOn(true);
    _light1_core->setShadowIntensity(0.8f);

    // Spot Light 2
    OSG::NodeUnrecPtr light2        = OSG::makeCoredNode<OSG::SpotLight>(&_light2_core);
    OSG::NodeUnrecPtr light2_beacon = OSG::makeCoredNode<OSG::Transform>(&_light2_trans);
    //_light2_trans->editMatrix().setTranslate(75.0, 0.0, 25.0);
    _light2_trans->editMatrix().setTranslate(250.0, -250.0, 300.0);
       
    _light2_core->setAmbient(0.15,0.15,0.15,1);
    _light2_core->setDiffuse(0.5,0.5,0.5,1);
    _light2_core->setSpecular(0.0,0.0,0.0,1);
    _light2_core->setSpotCutOffDeg(40.0);
    _light2_core->setSpotDirection(-0.85,0.85,-1.0);
    _light2_core->setBeacon(light2_beacon);
    _light2_core->setShadowIntensity(0.7);
    _light2_core->setOn(true);

    /*
    // Point Light 2
    OSG::NodeUnrecPtr light2        = OSG::makeCoredNode<OSG::PointLight>(&_light2_core);
    OSG::NodeUnrecPtr light2_beacon = OSG::makeCoredNode<OSG::Transform> (&_light2_trans);
    _light2_trans->editMatrix().setTranslate(40.0, 0.0, 40.0);

    _light2_core->setAmbient(0.15f, 0.15f, 0.15f, 1);
    _light2_core->setDiffuse(0.5f, 0.5f, 0.5f, 1);
    _light2_core->setSpecular(0.0f, 0.0f, 0.0f, 1);
    _light2_core->setBeacon(light2_beacon);
    _light2_core->setOn(false);
    _light2_core->setShadowIntensity(0.7f);
    */

    light1->addChild(light2);

    light2->addChild(scene);

    //Eigene Kamera erstellen
    Pcamera = OSG::PerspectiveCamera::create();
    cam_beacon = OSG::makeCoredNode<OSG::Transform>(&cam_trans);
    cam_trans->editMatrix().setTranslate(0.0, 0.0, 25.0);

    Pcamera->setBeacon(cam_beacon);
    Pcamera->setFov(OSG::osgDegree2Rad(60));
    Pcamera->setNear(1.0);
    Pcamera->setFar(1000);

    // create scene

    // bottom
    OSG::NodeUnrecPtr                 plane = OSG::makePlane(300.0, 300.0, 256, 256);

    OSG::ImageUnrecPtr                plane_img = OSG::Image::create();
    plane_img->read("gras.jpg");

    OSG::TextureObjChunkUnrecPtr         plane_tex_obj = OSG::TextureObjChunk::create();
    OSG::TextureEnvChunkUnrecPtr         plane_tex_env = OSG::TextureEnvChunk::create();
    plane_tex_obj->setImage(plane_img);
    plane_tex_obj->setMinFilter(GL_LINEAR);
    plane_tex_obj->setMagFilter(GL_LINEAR);
    plane_tex_obj->setWrapS(GL_REPEAT);
    plane_tex_obj->setWrapT(GL_REPEAT);
    plane_tex_env->setEnvMode(GL_MODULATE);

    OSG::SimpleMaterialUnrecPtr       plane_mat = OSG::SimpleMaterial::create();
    plane_mat->setAmbient(OSG::Color3f(0.3f, 0.3f, 0.3f));
    plane_mat->setDiffuse(OSG::Color3f(1.0f, 1.0f, 1.0f));
    plane_mat->addChunk(plane_tex_obj);
    plane_mat->addChunk(plane_tex_env);

    OSG::Geometry *plane_geo = dynamic_cast<OSG::Geometry *>(plane->getCore());
    plane_geo->setMaterial(plane_mat);

    //load Tree Objects

    OSG::NodeUnrecPtr                 tree1_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree1_trans);
    OSG::NodeUnrecPtr                 tree2_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree2_trans);
    OSG::NodeUnrecPtr                 tree3_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree3_trans);
    OSG::NodeUnrecPtr                 tree4_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree4_trans);
    OSG::NodeUnrecPtr                 tree5_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree5_trans);
    OSG::NodeUnrecPtr                 tree6_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree6_trans);
    OSG::NodeUnrecPtr                 tree7_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree7_trans);
    OSG::NodeUnrecPtr                 tree8_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree8_trans);
    OSG::NodeUnrecPtr                 tree9_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_tree9_trans);

    _tree1_trans->editMatrix().setTranslate(-80.0, -80.0, 0.0);
    _tree1_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree2_trans->editMatrix().setTranslate(0.0, -80.0, 0.0);
    _tree2_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree3_trans->editMatrix().setTranslate(80.0, -80.0, 0.0);
    _tree3_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree4_trans->editMatrix().setTranslate(-80.0, 0.0, 0.0);
    _tree4_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree5_trans->editMatrix().setTranslate(0.0, 0.0, 0.0);
    _tree5_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree6_trans->editMatrix().setTranslate(80.0, 0.0, 0.0);
    _tree6_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree7_trans->editMatrix().setTranslate(-80.0, 80.0, 0.0);
    _tree7_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree8_trans->editMatrix().setTranslate(0.0, 80.0, 0.0);
    _tree8_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    _tree9_trans->editMatrix().setTranslate(80.0, 80.0, 0.0);
    _tree9_trans->editMatrix().setScale(OSG::Vec3f(12.0, 12.0, 10.0));

    OSG::NodeUnrecPtr tree1 = OSG::SceneFileHandler::the()->read("tree1.3ds");

//    NodeUnrecPtr tree1 = makeSphere(2, 2.0);

    tree1_trans_node->addChild(tree1);

    tree2_trans_node->addChild(cloneTree(tree1));


    tree3_trans_node->addChild(cloneTree(tree1));

    tree4_trans_node->addChild(cloneTree(tree1));

    tree5_trans_node->addChild(cloneTree(tree1));

    tree6_trans_node->addChild(cloneTree(tree1));

    tree7_trans_node->addChild(cloneTree(tree1));

    tree8_trans_node->addChild(cloneTree(tree1));

    tree9_trans_node->addChild(cloneTree(tree1));

    OSG::NodeUnrecPtr                 trees = OSG::makeCoredNode<OSG::Group>();

    trees->addChild(tree1_trans_node);
    trees->addChild(tree2_trans_node);
    trees->addChild(tree3_trans_node);
    trees->addChild(tree4_trans_node);
    trees->addChild(tree5_trans_node);
    trees->addChild(tree6_trans_node);
    trees->addChild(tree7_trans_node);
    trees->addChild(tree8_trans_node);
    trees->addChild(tree9_trans_node);

    /*//load Airplane Object
       NodePtr obj1_trans_node = makeCoredNode<Transform>(&_obj1_trans);
       
       _obj1_trans->editMatrix().setTranslate(0.0, 0.0, 10.0);
       _obj1_trans->editMatrix().setScale(Vec3f(0.15,0.15,0.15));
       
       NodePtr object1 = SceneFileHandler::the().read("triplane.3ds");
       
       obj1_trans_node->addChild(object1);
       */

    //Load a Quad as Pointlight
    OSG::GeometryUnrecPtr             boxGeo = OSG::makeBoxGeo(15, 15, 15, 1, 1, 1);
    OSG::NodeUnrecPtr                 boxNode = OSG::Node::create();
    boxNode->setCore(boxGeo);

    OSG::SimpleMaterialUnrecPtr       box_mat = OSG::SimpleMaterial::create();
    box_mat->setAmbient(OSG::Color3f(0.95f, 1.0f, 0.2f));
    box_mat->setDiffuse(OSG::Color3f(0.95f, 1.0f, 0.2f));

    boxGeo->setMaterial(box_mat);

    OSG::NodeUnrecPtr                 obj1_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_obj1_trans);

    obj1_trans_node->addChild(boxNode);

    //load Dino Objects

    OSG::NodeUnrecPtr                 dino1_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_dino1_trans);
    OSG::NodeUnrecPtr                 dino2_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_dino2_trans);
    OSG::NodeUnrecPtr                 dino3_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_dino3_trans);
    OSG::NodeUnrecPtr                 dino4_trans_node = OSG::makeCoredNode<OSG::Transform>
        (&_dino4_trans);

    _dino1_trans->editMatrix().setTranslate(-20.0, -20.0, 10.0);
    _dino1_trans->editMatrix().setScale(OSG::Vec3f(5.0, 5.0, 5.0));

    _dino2_trans->editMatrix().setTranslate(-20.0, -20.0, 6.0);
    _dino2_trans->editMatrix().setScale(OSG::Vec3f(3.0, 3.0, 3.0));

    _dino3_trans->editMatrix().setTranslate(-20.0, -20.0, 6.0);
    _dino3_trans->editMatrix().setScale(OSG::Vec3f(3.0, 3.0, 3.0));

    _dino4_trans->editMatrix().setTranslate(-20.0, -20.0, 6.0);
    _dino4_trans->editMatrix().setScale(OSG::Vec3f(3.0, 3.0, 3.0));

    OSG::NodeUnrecPtr dino1 = OSG::SceneFileHandler::the()->read("dinopet.3ds");

//    NodeUnrecPtr dino1 = makeBox(2., 2., 2., 4, 4, 4);

    dino1_trans_node->addChild(dino1);

    dino2_trans_node->addChild(cloneTree(dino1));

    dino3_trans_node->addChild(cloneTree(dino1));

    dino4_trans_node->addChild(cloneTree(dino1));

    OSG::NodeUnrecPtr                 dinos = OSG::makeCoredNode<OSG::Group>();

    dinos->addChild(dino1_trans_node);
    dinos->addChild(dino2_trans_node);
    dinos->addChild(dino3_trans_node);
    dinos->addChild(dino4_trans_node);

    //load Stone Objects

    OSG::TransformUnrecPtr            _stone_trans1, _stone_trans2, _stone_trans3,
                            _stone_trans4, _stone_trans5, _stone_trans6,
                            _stone_trans7, _stone_trans8,
                            _stone_trans9;
    OSG::NodeUnrecPtr                 stone_trans_node1 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans1);
    OSG::NodeUnrecPtr                 stone_trans_node2 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans2);
    OSG::NodeUnrecPtr                 stone_trans_node3 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans3);
    OSG::NodeUnrecPtr                 stone_trans_node4 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans4);
    OSG::NodeUnrecPtr                 stone_trans_node5 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans5);
    OSG::NodeUnrecPtr                 stone_trans_node6 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans6);
    OSG::NodeUnrecPtr                 stone_trans_node7 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans7);
    OSG::NodeUnrecPtr                 stone_trans_node8 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans8);
    OSG::NodeUnrecPtr                 stone_trans_node9 = OSG::makeCoredNode<OSG::Transform>
        (&_stone_trans9);

    _stone_trans1->editMatrix().setTranslate(-70, -70, 0);

    _stone_trans2->editMatrix().setTranslate(10, -70, 0);

    _stone_trans3->editMatrix().setTranslate(90, -70, 0);

    _stone_trans4->editMatrix().setTranslate(-70, 10, 0);

    _stone_trans5->editMatrix().setTranslate(10, 10, 0);

    _stone_trans6->editMatrix().setTranslate(90, 10, 0);

    _stone_trans7->editMatrix().setTranslate(-70, 90, 0);

    _stone_trans8->editMatrix().setTranslate(10, 90, 0);

    _stone_trans9->editMatrix().setTranslate(90, 90, 0);

    OSG::NodeUnrecPtr                 stone1 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone2 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone3 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone4 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone5 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone6 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone7 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone8 = OSG::makeSphere(1, 7.0);
    OSG::NodeUnrecPtr                 stone9 = OSG::makeSphere(1, 7.0);

    OSG::ImageUnrecPtr                plane_img2 = OSG::Image::create();
    plane_img2->read("stone.jpg");

    OSG::TextureObjChunkUnrecPtr         plane_tex2_obj = OSG::TextureObjChunk::create();
    OSG::TextureEnvChunkUnrecPtr         plane_tex2_env = OSG::TextureEnvChunk::create();
    plane_tex2_obj->setImage(plane_img2);
    plane_tex2_obj->setMinFilter(GL_LINEAR);
    plane_tex2_obj->setMagFilter(GL_LINEAR);
    plane_tex2_obj->setWrapS(GL_REPEAT);
    plane_tex2_obj->setWrapT(GL_REPEAT);
    plane_tex2_env->setEnvMode(GL_MODULATE);

    OSG::SimpleMaterialUnrecPtr       plane_mat2 = OSG::SimpleMaterial::create();
    plane_mat2->setAmbient(OSG::Color3f(0.3f, 0.3f, 0.3f));
    plane_mat2->setDiffuse(OSG::Color3f(1.0f, 1.0f, 1.0f));
    plane_mat2->addChunk(plane_tex2_obj);
    plane_mat2->addChunk(plane_tex2_env);

    OSG::Geometry *plane_geo3 = dynamic_cast<OSG::Geometry *>(stone1->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone2->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone3->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone4->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone5->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone6->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone7->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone8->getCore());
    plane_geo3->setMaterial(plane_mat2);

    plane_geo3 = dynamic_cast<OSG::Geometry *>(stone9->getCore());
    plane_geo3->setMaterial(plane_mat2);


    stone_trans_node1->addChild(stone1);

    stone_trans_node2->addChild(stone2);

    stone_trans_node3->addChild(stone3);

    stone_trans_node4->addChild(stone4);

    stone_trans_node5->addChild(stone5);

    stone_trans_node6->addChild(stone6);

    stone_trans_node7->addChild(stone7);

    stone_trans_node8->addChild(stone8);

    stone_trans_node9->addChild(stone9);

    OSG::NodeUnrecPtr                 stones = OSG::makeCoredNode<OSG::Group>();

    stones->addChild(stone_trans_node1);
    stones->addChild(stone_trans_node2);
    stones->addChild(stone_trans_node3);
    stones->addChild(stone_trans_node4);
    stones->addChild(stone_trans_node5);
    stones->addChild(stone_trans_node6);
    stones->addChild(stone_trans_node7);
    stones->addChild(stone_trans_node8);
    stones->addChild(stone_trans_node9);


    scene->addChild(plane);
    scene->addChild(obj1_trans_node);
    scene->addChild(trees);
    scene->addChild(stones);
    scene->addChild(dinos);

    svp = OSG::ShadowStage::create();
    OSG::GradientBackgroundUnrecPtr   gbg = OSG::GradientBackground::create();
    OSG::SolidBackgroundUnrecPtr      sbg = OSG::SolidBackground::create();

    gbg->addLine(OSG::Color3f(0.7f, 0.7f, 0.8f), 0);
    gbg->addLine(OSG::Color3f(0.0f, 0.1f, 0.3f), 1);

    rootNode->setCore(svp);

    rootNode->addChild(light1);
    rootNode->addChild(light1_beacon);
    rootNode->addChild(light2_beacon);
    rootNode->addChild(cam_beacon);

    // Shadow viewport
#ifdef SHADOW_CHECK
    svp->setBackground(gbg);
    svp->setRoot(rootNode);
    svp->setSize(0, 0, 1, 1);
#endif
    //svp->setOffFactor(4.0);
    //svp->setOffBias(8.0);
    //used to set global shadow intensity, ignores shadow intensity from light sources if != 0.0
    //svp->setGlobalShadowIntensity(0.8);
    svp->setMapSize(1024);
    //ShadowSmoothness used for PCF_SHADOW_MAP and VARIANCE_SHADOW_MAP, defines Filter Width. Range can be 0.0 ... 1.0.
    //ShadowSmoothness also used to define the light size for PCSS_SHADOW_MAP
    svp->setShadowSmoothness(0.5);
    // add light sources here
    //svp->editMFLightNodes  ()->push_back(light1);
    //svp->editMFLightNodes  ()->push_back(light2);
    svp->editMFExcludeNodes()->push_back(obj1_trans_node);
    svp->setAutoSearchForLights(true);

    //one active light at startup
    _light2_core->setOn(true);
    _light2_core->setAmbient(0.3f, 0.3f, 0.3f, 1);
    _light2_core->setDiffuse(0.8f, 0.8f, 0.8f, 1);

    _light1_core->setOn(false);
    _light1_core->setAmbient(0.3, 0.3, 0.3, 1);
    _light1_core->setDiffuse(0.8, 0.8, 0.8, 1);

    gwin->setGlutId(winid);
#ifdef SHADOW_CHECK
    gwin->addPort(svp);
#endif

    gwin->init();

    OSG::Vec3f                   min, max;
    rootNode->updateVolume();
    rootNode->getVolume().getBounds(min, max);

    // create the SimpleSceneManager helper
    mgr = OSG::SimpleSceneManager::create();

    mgr->setWindow(gwin);
    mgr->setCamera(Pcamera);
    mgr->setRoot(rootNode);

    _navigator.setMode(OSG::Navigator::TRACKBALL);

#ifdef SHADOW_CHECK
    _navigator.setViewport(svp);
#endif
    _navigator.setCameraTransformation(cam_beacon);


    OSG::Vec3f                   up(0,1,0);
    OSG::Pnt3f                   at(0,0,0);
    OSG::Pnt3f                   from(0.0f,-100.1f,20.0f);

    _navigator.set(from, at, up);

    _navigator.setMotionFactor(0.5f);


#ifdef SHADOW_CHECK
    svp->setCamera(Pcamera);
#endif

    //activate Framecounter
    startFpsCounter();

//    dynamic_cast<RenderAction *>(mgr->getAction())->setLocalLights(true);
    mgr->turnHeadlightOff();

    mgr->showAll();

    mgr->getCamera()->setNear(      1.0f);
    mgr->getCamera()->setFar (1000000.f );

    _navigator.setViewport(gwin->getPort(0));

    return 0;
}