C++ osg::NodeRecPtr类代码示例

OSG::NodeTransitPtr createScene(OSG::Window *win)
{
   OSG::NodeRecPtr rootN = OSG::makeNodeFor(OSG::Group::create());

   // Create ground:
   OSG::NodeUnrecPtr groundN = OSG::makePlane(25,25,1,1);
   OSG::Matrix m;
   OSG::Quaternion q;
   q.setValueAsAxisDeg(OSG::Vec3f(1,0,0), -90);
   m.setRotate(q);

   OSG::TransformUnrecPtr groundTransC = OSG::Transform::create();
   groundTransC->setMatrix(m);

   OSG::NodeUnrecPtr groundTransN = OSG::makeNodeFor(groundTransC);
   groundTransN->addChild(groundN);
   rootN->addChild(groundTransN);

   // Set ground material:
   OSG::SimpleMaterialUnrecPtr mat = OSG::SimpleMaterial::create();
   mat->setDiffuse(OSG::Color3f(0.8,0.8,0.8));
   dynamic_cast<OSG::Geometry*>(groundN->getCore())->setMaterial(mat);

//   // Create figure:
//   OSG::NodeUnrecPtr figure1N =
//         OSG::SceneFileHandler::the()->read("../Models/Figure.obj");

//   G.figure1TransC = OSG::Transform::create();
//   OSG::NodeUnrecPtr trans1N = OSG::makeNodeFor(G.figure1TransC);
//   trans1N->addChild(figure1N);
//   rootN->addChild(trans1N);

   OSG::NodeUnrecPtr figureModelA =
         OSG::SceneFileHandler::the()->read("../assets/Figure.obj");

   BoardGame::Figure* figureA = new BoardGame::Figure();
   figureA->setModel(figureModelA);
   rootN->addChild(figureA->getRoot());

   OSG::NodeUnrecPtr figureModelB =
         OSG::SceneFileHandler::the()->read("../assets/Figure.obj");

   BoardGame::Figure* figureB = new BoardGame::Figure();
   figureB->setModel(figureModelB);
   rootN->addChild(figureB->getRoot());

   G.selectedNode = figureModelA;

   return(OSG::NodeTransitPtr(rootN));
}

OSG::NodeRecPtr createScenegraph(void)
{
    //create sun, planet & moon geometry

    OSG::GeometryRecPtr sun    = OSG::makeSphereGeo(3, 6);
    OSG::NodeRecPtr     planet = OSG::makeSphere   (3, 3);
    OSG::NodeRecPtr     moon   = OSG::makeSphere   (2, 1);

    //the root node will be the sun
    OSG::NodeRecPtr root = OSG::Node::create();
    root->setCore(sun);

    OSG::NodeRecPtr planetTransformNode = OSG::Node::create();
    OSG::NodeRecPtr moonTransformNode   = OSG::Node::create();

    // these were declared globally
    planetTransform = OSG::Transform::create();
    moonTransform   = OSG::Transform::create();

    // Now we need to fill it with live
    // We want to have the planet some distance away from the sun,
    // but initial with no rotation. The same aplies to the moon
    OSG::Matrix m,n;

    m.setIdentity();
    n.setIdentity();

    m.setTranslate(20, 0, 0);
    n.setTranslate( 8, 0, 0);

    planetTransform->setMatrix(m);
    moonTransform  ->setMatrix(n);

    //Insert the cores into the apropiate nodes and add the geometry
    planetTransformNode->setCore (planetTransform);
    planetTransformNode->addChild(planet         );

    moonTransformNode->setCore (moonTransform);
    moonTransformNode->addChild(moon         );

    //add the planet to the sun
    root->addChild(planetTransformNode);
    root->addChild(moonTransformNode  );

    //now we are done
    return OSG::NodeTransitPtr(root);
}

int main( int argc, char **argv )
{
    OSG::osgInit(argc,argv);
    
    QApplication::setColorSpec( QApplication::CustomColor );
    QApplication a( argc, argv );

    if ( !QGLFormat::hasOpenGL() ) {
    qWarning( "This system has no OpenGL support. Exiting." );
    return -1;
    }
    
    OpenSGWidget w(QGLFormat(QGL::DoubleBuffer | QGL::DepthBuffer | QGL::Rgba |
                             QGL::DirectRendering));

    // create the scene
    OSG::NodeRecPtr scene;
    
    if(argc > 1)
    {
        scene = OSG::Node::create();
        OSG::GroupRecPtr g = OSG::Group::create();

        scene->setCore(g);
        
        for(OSG::UInt16 i = 1; i < argc; ++i)
            scene->addChild(OSG::SceneFileHandler::the()->read(argv[i]));
    }
    else
    {
        scene = OSG::makeTorus(.5, 3, 16, 16);
    }

    w.getManager()->setRoot(scene);
    w.getManager()->showAll();

    w.show();
    return a.exec();
}

int main( int argc, char **argv )
{
    // OSG init
    OSG::osgInit(argc, argv);

    OSG::SceneFileHandler::the()->print();

    // create the graph

    // beacon for camera and light  
    OSG::NodeRecPtr b1n = OSG::Node::create();
    OSG::GroupRecPtr b1 = OSG::Group::create();
    b1n->setCore( b1 );

    // transformation
    OSG::NodeRecPtr t1n = OSG::Node::create();
    OSG::TransformRecPtr t1 = OSG::Transform::create();
    t1n->setCore( t1 );
    t1n->addChild( b1n );

    cam_trans = t1;

    // light
    OSG::NodeRecPtr dlight = OSG::Node::create();
    OSG::DirectionalLightRecPtr dl = OSG::DirectionalLight::create();

    dlight->setCore( dl );
    
    dl->setAmbient( .3, .3, .3, 1 );
    dl->setDiffuse( 1, 1, 1, 1 );
    dl->setDirection(0,0,1);
    dl->setBeacon( b1n);

    // root
    root = OSG::Node::create();
    OSG::GroupRecPtr gr1 = OSG::Group::create();
    root->setCore( gr1 );
    root->addChild( t1n );
    root->addChild( dlight );

    // Load the file
    OSG::NodeRecPtr file = NULL;
    
    if ( argc > 1 )
        file = OSG::SceneFileHandler::the()->read(argv[1]);
    
    if ( file == NULL )
    {
        std::cerr << "Couldn't load file, ignoring" << std::endl;
        file = OSG::makeTorus( .5, 2, 16, 16 );
    }

    OSG::commitChanges();
    
    file->updateVolume();

    OSG::Vec3f min,max;
    file->getVolume().getBounds( min, max );
    
    std::cout << "Volume: from " << min << " to " << max << std::endl;

    dlight->addChild( file );

    std::cerr << "Tree: " << std::endl;
    root->dump();

    // Camera
    OSG::PerspectiveCameraRecPtr cam = OSG::PerspectiveCamera::create();

    cam->setBeacon( b1n );
    cam->setFov( OSG::osgDegree2Rad( 60 ) );
    cam->setNear( 1 );
    cam->setFar( 4000 );

    // Background
    OSG::SolidBackgroundRecPtr bkgnd = OSG::SolidBackground::create();
    bkgnd->setColor( OSG::Color3f( 0,0,1 ) );

    // Viewport
    vp = OSG::Viewport::create();
    vp->setCamera( cam );
    vp->setBackground( bkgnd );
    vp->setRoot( root );
    vp->setSize( 0,0, 1,1 );
    
    // Action
    ract = OSG::RenderAction::create();

    // QT init
    QApplication::setColorSpec( QApplication::CustomColor );
    a = new QApplication( argc, argv );

    if ( !QGLFormat::hasOpenGL() )
    {
        qWarning( "This system has no OpenGL support. Exiting." );
        return -1;
    }

    OSG::Vec3f pos( 0, 0, max[2] + ( max[2] - min[2] ) * 1.5 );

//.........这里部分代码省略.........

int main (int argc, char **argv)
{
    OSG::osgInit(argc, argv);

    Foo foo;

    OSG::Thread::getCurrentChangeList()->clear();

    OSG::NodeRecPtr pNode = OSG::Node::create();

    OSG::ChangedFunctor objCB = boost::bind(&Foo::testCB, &foo, _1, _2, _3);

    pNode->addChangedFunctor(testCB, "");
    pNode->addChangedFunctor(objCB, "");

    pNode->setTravMask(0);

    fprintf(stderr, "Test 1\n");
    OSG::Thread::getCurrentChangeList()->commitChanges();
   


    pNode->addChangedFunctor(testCB, "");

    pNode->setTravMask(1);

    fprintf(stderr, "Test 2 \n");
    OSG::Thread::getCurrentChangeList()->commitChanges();



    pNode->subChangedFunctor(testCB);

    pNode->setTravMask(1);

    fprintf(stderr, "Test 3\n");
    OSG::Thread::getCurrentChangeList()->commitChanges();

    
    pNode->addChangedFunctor(testCB, "");

    pNode->setTravMask(1);

    fprintf(stderr, "Test 4 \n");
    OSG::Thread::getCurrentChangeList()->commitChanges();


    pNode->subChangedFunctor(testCB);

    pNode->setTravMask(1);

    fprintf(stderr, "Test 5\n");
    OSG::Thread::getCurrentChangeList()->commitChanges();

    fprintf(stderr, "Delete\n");
    pNode = NULL;
}

OSG::NodeTransitPtr createScenegraph(void)
{
    // At first we load all needed models from file
    OSG::NodeRecPtr w_high   = 
        OSG::SceneFileHandler::the()->read("Data/woman_high.wrl");

    OSG::NodeRecPtr w_medium = 
        OSG::SceneFileHandler::the()->read("Data/woman_medium.wrl");

    OSG::NodeRecPtr w_low    = 
        OSG::SceneFileHandler::the()->read("Data/woman_low.wrl");
    
    // we check the result
    if((w_high == NULL) || (w_medium == NULL)|| (w_low == NULL))
    {
        std::cout << "It was not possible to load all needed models from file"
                << std::endl;
        return OSG::NodeTransitPtr();
    }
    
    // now the LOD core
    OSG::DistanceLODRecPtr lod = OSG::DistanceLOD::create();
    lod->editSFCenter()->setValue(OSG::Pnt3f(0,0,0));
    lod->editMFRange()->push_back(200);
    lod->editMFRange()->push_back(500);
    
    // the node containing the LOD core. The three models will be
    // added as its children
    OSG::NodeRecPtr lodNode = OSG::Node::create();
    lodNode->setCore(lod);
    lodNode->addChild(w_high);
    lodNode->addChild(w_medium);
    lodNode->addChild(w_low);
    
    // create the node with switch core ********************
    OSG::SwitchRecPtr sw = OSG::Switch::create();
    //Notice: the first choice is 0
    sw->setChoice(0);
    
    OSG::NodeRecPtr switchNode = OSG::Node::create();
    switchNode->setCore(sw);
    switchNode->addChild(lodNode);
    
    //end switch creation **********************************
    
    OSG::NodeRecPtr root = OSG::Node::create();
    root->setCore(OSG::Group::create());
    root->addChild(switchNode);
    
    // we know want to extract the mesh geometry out of the graph
    // it is sufficent to pass the model only as root for searching
    OSG::NodeRecPtr     womanGeometry = checkName(w_high);
    OSG::GeometryRecPtr geo = 
        dynamic_cast<OSG::Geometry *>(womanGeometry->getCore());
    
    //new node with "old" geometry core referenced
    OSG::NodeRecPtr woman = OSG::Node::create();
    woman->setCore(geo);
    
    //translate it a bit to see both women
    OSG::NodeRecPtr      womanTrans = OSG::Node     ::create();
    OSG::TransformRecPtr t          = OSG::Transform::create();
    OSG::Matrix m;
    m.setIdentity();
    m.setTranslate(OSG::Vec3f(0,0,200));
    t->setMatrix(m);
        
    womanTrans->setCore(t);
    womanTrans->addChild(woman);
    
    //add it to the root
    root->addChild(womanTrans);
    
    return OSG::NodeTransitPtr(root);
}

void updateScene(const std::string &filename, OSG::Image::PixelFormat compressTo = OSG::Image::OSG_INVALID_PF)
{
    // Try to create the new image
    OSG::ImageRecPtr imagePtr = 
        OSG::ImageFileHandler::the()->read(filename.c_str());

    if (imagePtr == NULL)
        return;

    if(compressTo != OSG::Image::OSG_INVALID_PF)
    {
        imagePtr->reformat(compressTo);
    }

    // Update information on the screen
    OSG::StatStringElem *statElem = 
        statfg->editCollector()->getElem(textureFormatDesc);

    switch (imagePtr->getPixelFormat())
    {
        case OSG::Image::OSG_A_PF:
            statElem->set("OSG_A_PF");
            break;
        case OSG::Image::OSG_I_PF:
            statElem->set("OSG_I_PF");
            break;
        case OSG::Image::OSG_L_PF:
            statElem->set("OSG_L_PF");
            break;
        case OSG::Image::OSG_LA_PF:
            statElem->set("OSG_LA_PF");
            break;
        case OSG::Image::OSG_RGB_PF:
            statElem->set("OSG_RGB_PF");
            break;
        case OSG::Image::OSG_RGBA_PF:
            statElem->set("OSG_RGBA_PF");
            break;
        case OSG::Image::OSG_BGR_PF:
            statElem->set("OSG_BGRA_PF");
            break;
        case OSG::Image::OSG_BGRA_PF:
            statElem->set("OSG_BGRA_PF");
            break;
        case OSG::Image::OSG_RGB_DXT1:
            statElem->set("OSG_RGB_DXT1");
            break;
        case OSG::Image::OSG_RGBA_DXT1:
            statElem->set("OSG_RGBA_DXT1");
            break;
        case OSG::Image::OSG_RGBA_DXT3:
            statElem->set("OSG_RGBA_DXT3");
            break;
        case OSG::Image::OSG_RGBA_DXT5:
            statElem->set("OSG_RGBA_DXT5");
            break;
        default:
            statElem->set("???");
            break;
    }
    statElem = statfg->editCollector()->getElem(textureDataTypeDesc);
    switch (imagePtr->getDataType())
    {
        case OSG::Image::OSG_UINT8_IMAGEDATA:
            statElem->set("OSG_UINT8_IMAGEDATA");
            break;
        case OSG::Image::OSG_UINT16_IMAGEDATA:
            statElem->set("OSG_UINT16_IMAGEDATA");
            break;
        case OSG::Image::OSG_UINT32_IMAGEDATA:
            statElem->set("OSG_UINT32_IMAGEDATA");
            break;
        case OSG::Image::OSG_FLOAT16_IMAGEDATA:
            statElem->set("OSG_FLOAT16_IMAGEDATA");
            break;
        case OSG::Image::OSG_FLOAT32_IMAGEDATA:
            statElem->set("OSG_FLOAT32_IMAGEDATA");
            break;
        case OSG::Image::OSG_INT16_IMAGEDATA:
            statElem->set("OSG_INT16_IMAGEDATA");
            break;
        case OSG::Image::OSG_INT32_IMAGEDATA:
            statElem->set("OSG_INT32_IMAGEDATA");
            break;
        default:
            statElem->set("???");
            break;
    }
    ostringstream os;
    os << imagePtr->getWidth() << 'x' << imagePtr->getHeight() << 'x' << imagePtr->getDepth();
    statfg->editCollector()->getElem(textureSizeDesc)->set(os.str());
    statfg->editCollector()->getElem(textureDimensionDesc)->set(imagePtr->getDimension());
    statfg->editCollector()->getElem(textureBPPDesc)->set(imagePtr->getBpp());
    statfg->editCollector()->getElem(textureMipMapCountDesc)->set(imagePtr->getMipMapCount());
    statfg->editCollector()->getElem(textureFrameCountDesc)->set(imagePtr->getFrameCount());

    // Put it all together into a Geometry NodeCore.
    OSG::GeometryRecPtr geo = OSG::makePlaneGeo(imagePtr->getWidth(), imagePtr->getHeight(), 1, 1);
    OSG::NodeRecPtr imageNode = OSG::Node::create();
    imageNode->setCore(geo);
//.........这里部分代码省略.........

// Initialize GLUT & OpenSG and set up the scene
int doMain(int argc, char **argv)
{
    std::cout << "start a cluster server with './testClusterServer -w pipe0'\n"
                 "press 'c' to connect to the servers.\n"
                 "press 'd' to disconnect from the servers.\n"
                 "press 'n' to delete current scene.\n"
                 "press 't' to create a torus.\n"
                 "press 'l' to load scene 'tie.wrl'.\n"
              << std::endl;
    
    // OSG init
    OSG::osgInit(argc,argv);

    OSG::VTKPolyDataMapper::getClassType().dump();

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

    // the connection between GLUT and OpenSG

    _client_win = OSG::GLUTWindow::create();

    _client_win->setGlutId(winid);
    _client_win->init();
    _client_win->setSize(300,300);
    
    for(OSG::Int32 i=0;i<argc-1;++i)
    {
        if(argv[i+1] != NULL)
            _pipenames.push_back(argv[i+1]);
    }

    if(_pipenames.empty())
        _pipenames.push_back("pipe0");
    
    _root = OSG::Node::create();
    
    _root->setCore(OSG::Group::create());
    
    // create default scene
//    NodePtr scene = makeTorus(.5, 2, 16, 16);
    OSG::NodeUnrecPtr scene = initVTK();

    _root->addChild(scene);

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

    // tell the manager what to manage
    _mgr->setWindow(_client_win );
    _mgr->setRoot  (_root);

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

    return 0;
}

// react to keys
void keyboard(unsigned char k, int x, int y)
{
    switch(k)
    {
        case 27:    
        {
            delete _mgr;

            _client_win  = NULL;
            _cluster_win = NULL;
            _root        = NULL;

            OSG::osgExit();
            exit(0);
        }
        case 'n':
            while(_root->getNChildren() > 0)
                _root->subChild(_root->getChild(0));

            glutPostRedisplay();
        break;
        case 'l':
        {
            OSG::NodeUnrecPtr scene = 
                OSG::SceneFileHandler::the()->read("tie.wrl", NULL);

            if(scene != NULL)
            {
                _root->addChild(scene);

                _mgr->showAll();

                glutPostRedisplay();
            }
        }
        break;
        case 't':
        {
            OSG::NodeUnrecPtr scene = OSG::makeTorus(.5, 2, 16, 16);

            _root->addChild(scene);

            _mgr->showAll();

            glutPostRedisplay();
        }
        break;
        case 'c':
            connectCluster();
        break;
        case 'd':
            disconnectCluster();
        break;
    }
}

// Initialize GLUT & OpenSG and set up the scene
int doMain(int argc, char **argv)
{
    // OSG init
    OSG::osgInit(argc,argv);

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

    // the connection between GLUT and OpenSG
    OSG::GLUTWindowRecPtr gwin= OSG::GLUTWindow::create();
    gwin->setGlutId(winid);
    gwin->init();

    // put the geometry core into a node
    scene = OSG::Node::create();
    OSG::GroupRecPtr groupPtr = OSG::Group::create();
    scene->setCore(groupPtr);

    statfg = OSG::SimpleStatisticsForeground::create();
    statfg->setSize(25);
    statfg->setColor(OSG::Color4f(0,1,0,0.9f));
    statfg->addElement(textureFormatDesc, "Pixel Format: %s");
    statfg->addElement(textureDataTypeDesc, "Data Type: %s");
    statfg->addElement(textureSizeDesc, "Texture Size: %s");
    statfg->addElement(textureDimensionDesc, "Dimension: %i");
    statfg->addElement(textureBPPDesc, "BPP: %i");
    statfg->addElement(textureMipMapCountDesc, "MipMapCount: %i");
    statfg->addElement(textureFrameCountDesc, "FrameCount: %i");

    // Create the background
    OSG::SolidBackgroundRecPtr bg = OSG::SolidBackground::create();
    bg->setColor(OSG::Color3f(0.1f, 0.1f, 0.5f));

    if (argc < 2)
    {
        std::cerr << "Usage: testImageLoader <filename>" << std::endl;
        return EXIT_FAILURE;
    }

    updateScene(argv[1]);

    szFilename = argv[1];

    // create the SimpleSceneManager helper
    mgr = new OSG::SimpleSceneManager;

    // tell the manager what to manage
    mgr->setWindow(gwin );
    mgr->setRoot  (scene);

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

    // add the statistics forground
    gwin->getPort(0)->addForeground(statfg);
    gwin->getPort(0)->setBackground(bg);


    return 0;
}

void display(void)
{
    OSG::Real32 time = glutGet(GLUT_ELAPSED_TIME);
    updateMesh(time);
    
    // we extract the core out of the root node
    // as we now this is a geometry node
    OSG::GeometryRecPtr geo = dynamic_cast<OSG::Geometry *>(scene->getCore());
    
    //now modify it's content
    
    // first we need a pointer to the position data field
    OSG::GeoPnt3fPropertyRecPtr pos = 
        dynamic_cast<OSG::GeoPnt3fProperty *>(geo->getPositions());
    
    //get the data field the pointer is pointing at
    OSG::GeoPnt3fProperty::StoredFieldType *posfield = pos->editFieldPtr();
    //get some iterators
    OSG::GeoPnt3fProperty::StoredFieldType::iterator last, it;

    // set the iterator to the first data
    it = posfield->begin();
    
    //now simply run over all entires in the array
    for (int x = 0; x < N; x++)
    {
        for (int z = 0; z < N; z++)
        {
            (*it) = OSG::Pnt3f(x, wMesh[x][z], z);
            it++;
        }
    }
    
    mgr->redraw();
}

void display(void)
{
    OSG::Real32 time = glutGet(GLUT_ELAPSED_TIME);
    updateMesh(time);
    
    // we extract the core out of the root node
    // as we now this is a geometry node
    OSG::GeometryRecPtr geo = dynamic_cast<OSG::Geometry *>(scene->getCore());
    
    //now modify it's content
    
    // first we need a pointer to the position data field
    OSG::GeoPnt3fPropertyRecPtr pos = 
        dynamic_cast<OSG::GeoPnt3fProperty *>(geo->getPositions());
    
    //this loop is similar to when we generted the data during createScenegraph()
    // here they all come
    for (int x = 0; x < N; x++)
        for (int z = 0; z < N; z++)
            pos->setValue(OSG::Pnt3f(x, wMesh[x][z], z), N * x + z);
    
    mgr->redraw();
}

int main (int argc, char **argv)
{
    doMain(argc, argv);

    fprintf(stderr, "Create hdrroot %p %d %d \n",
            hdrroot.get(),
            hdrroot->getRefCount(),
            hdrroot->getWeakRefCount());

    fprintf(stderr, "Create root %p %d %d \n",
            root.get(),
            root->getRefCount(),
            root->getWeakRefCount());

    // run...
    glutMainLoop();

    return 0;
}

void init(std::vector<std::string> &filenames)
{
    size_t i;
    OSG::DirectionalLightUnrecPtr dl;
    OSG::Real32 x,y,z;
    OSG::BoxVolume volume;
    OSG::Vec3f min,max;
    OSG::Vec3f size;

    glEnable( GL_DEPTH_TEST );
    glEnable( GL_LIGHTING );
    glEnable( GL_LIGHT0 );
//    GLint twoSide = 1;
//    glLightModeliv(GL_LIGHT_MODEL_TWO_SIDE,&twoSide);
    glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );

    // create the graph

    // beacon for camera and light
    OSG::NodeUnrecPtr b1n = OSG::Node::create();
    OSG::GroupUnrecPtr b1 = OSG::Group::create();
    b1n->setCore( b1 );

    // transformation
    OSG::NodeUnrecPtr t1n = OSG::Node::create();
    OSG::TransformUnrecPtr t1 = OSG::Transform::create();
    t1n->setCore( t1 );
    t1n->addChild( b1n );

    cam_trans = t1;

    // light

    OSG::NodeUnrecPtr dlight = OSG::Node::create();
    dl = OSG::DirectionalLight::create();

    dlight->setCore( dl );

    dl->setAmbient( .3f, .3f, .3f, 1 );
    dl->setDiffuse( 1, 1, 1, 1 );
    dl->setDirection(0,0,1);
    dl->setBeacon( b1n);

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

    OSG::GroupUnrecPtr gr1 = OSG::Group::create();

    root->setCore( gr1 );
    root->addChild( t1n );
    root->addChild( dlight );

    // Load the file
    OSG::NodeUnrecPtr scene = OSG::Node::create();
    scene->setCore(OSG::Group::create());

    OSG::NodeUnrecPtr file;
    for(i=0;i<filenames.size();i++)
    {
        file = OSG::SceneFileHandler::the()->read(filenames[i].c_str(),0);
        if(file != NULL)
            scene->addChild(file);
        else
            std::cerr << "Couldn't load file, ignoring " << filenames[i] << std::endl;
    }
	if ( filenames.size()==0 )
	{
        file = OSG::makeTorus( .5, 2, 16, 16 );
        scene->addChild(file);
//        scene->addChild(makeBox(.6,.6,.6,5,5,5));
    }

    prepareSceneGraph(scene);

    OSG::Thread::getCurrentChangeList()->commitChanges();

    scene->invalidateVolume();
    scene->updateVolume();
    volume=scene->getVolume();
    volume.getBounds(min,max);
    size = max-min;

    if(ca>0)
    {
        if(cb==-1)
            cb=ca;
        if(cc==-1)
            cc=cb;
            
        OSG::NodeUnrecPtr node;
        OSG::NodeUnrecPtr geoNode;
        OSG::TransformUnrecPtr trans;
        for(x=-ca/2.0 ; x<ca/2.0 ; x++)
            for(y=-cb/2.0 ; y<cb/2.0 ; y++)
                for(z=-cc/2.0 ; z<cc/2.0 ; z++)
                {
                    trans=OSG::Transform::create();
                    node=OSG::Node::create();
                    
                    node->setCore(trans);
//.........这里部分代码省略.........

// Initialize GLUT & OpenSG and set up the scene
int main(int argc, char **argv)
{
    printf("Usage: testCGShader [normal map filename]\n");
    const char *normal_map_img_name = "opensg_logoDOT3.png";

    OSG::Color4f tmp;

    if( argc > 1 )
        normal_map_img_name = argv[1];

    // 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

    // Read the image for the normal texture
    OSG::ImageUnrecPtr normal_map_img = OSG::Image::create();
    if(!normal_map_img->read(normal_map_img_name))
    {
        fprintf(stderr, "Couldn't read normalmap texture '%s'!\n", normal_map_img_name);
        return 1;
    }

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

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

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

    OSG::SHLChunkUnrecPtr shl = OSG::SHLChunk::create();

    shl->setVertexProgram(_vp_program);
    shl->setFragmentProgram(_fp_program);

    OSG::TextureObjChunkUnrecPtr tex_normal_map     = 
        OSG::TextureObjChunk::create();
    OSG::TextureEnvChunkUnrecPtr tex_normal_map_env = 
        OSG::TextureEnvChunk::create();

    tex_normal_map->setImage(normal_map_img);
    tex_normal_map->setMinFilter(GL_LINEAR_MIPMAP_LINEAR);
    tex_normal_map->setMagFilter(GL_LINEAR);
    tex_normal_map->setWrapS(GL_REPEAT);
    tex_normal_map->setWrapT(GL_REPEAT);
    tex_normal_map_env->setEnvMode(GL_MODULATE);

        //cmat->addChunk(matc);
    cmat->addChunk(shl);
    cmat->addChunk(tex_normal_map);
    cmat->addChunk(tex_normal_map_env);


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

    // create geometry
    //GeometryPtr geo = makeLatLongSphereGeo (100, 100, 1.0);
    OSG::GeometryUnrecPtr geo = OSG::makePlaneGeo(1.0, 1.0, 100, 100);

    geo->setMaterial(cmat);

    OSG::NodeUnrecPtr torus = OSG::Node::create();
    torus->setCore(geo);

    // add torus to scene
    OSG::GroupUnrecPtr group = OSG::Group::create();

    _scene->setCore(group);
    _scene->addChild(torus);

    // create the SimpleSceneManager helper
    _mgr = new OSG::SimpleSceneManager;

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

    /*
    // create point headlight
    _mgr->turnHeadlightOff();
    NodePtr headlight = _mgr->getHighlight();
    PointLightPtr light    = PointLight::create();
    beginEditCP(light);
        light->setAmbient  (.3, .3, .3, 1);
        light->setDiffuse  ( 1,  1,  1, 1);
        light->setSpecular ( 1,  1,  1, 1);
//.........这里部分代码省略.........