C++ PerspectiveCameraPtr::setFov方法代码示例

//.........这里部分代码省略.........
    beginEditCP(root);
    root->setCore( gr1 );
    root->addChild( t1n );
    root->addChild( dlight );
    endEditCP(root);

    // Load the file

    NodePtr file = NullFC;

    if ( argc > 1 )
        file = SceneFileHandler::the().read(argv[1]);

    if ( file == NullFC )
    {
        std::cerr << "Couldn't load file, ignoring" << std::endl;
        file = makeTorus( .5, 2, 16, 16 );
    }

    file->updateVolume();

    Vec3f min,max;
    file->getVolume().getBounds( min, max );

    std::cout << "Volume: from " << min << " to " << max << std::endl;

    beginEditCP(dlight);
    dlight->addChild( file );
    endEditCP(dlight);

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

    // Camera

    cam = PerspectiveCamera::create();
    cam->setBeacon( b1n );
    cam->setFov( deg2rad( 90 ) );
    cam->setNear( 0.1 );
    cam->setFar( 10000 );

    // Background
    SolidBackgroundPtr bkgnd = SolidBackground::create();

    // Foreground
    GrabForegroundPtr fgnd = GrabForeground::create();

    image = Image::create();
    beginEditCP(image);
    image->set(Image::OSG_RGB_PF, 1);
    endEditCP(image);

    fgnd->setImage(image);

    // Viewport

    vp = Viewport::create();
    vp->setCamera( cam );
    vp->setBackground( bkgnd );
    vp->editMFForegrounds()->push_back( fgnd );
    vp->setRoot( root );
    vp->setSize( 0,0, 1,1 );

    // Window
    std::cout << "GLUT winid: " << winid << std::endl;

    GLUTWindowPtr gwin;

    GLint glvp[4];
    glGetIntegerv( GL_VIEWPORT, glvp );

    gwin = GLUTWindow::create();
    gwin->setId(winid);
    gwin->setSize( glvp[2], glvp[3] );

    win = gwin;

    win->addPort( vp );

    win->init();

    // Action

    ract = DrawAction::create();

    // tball

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

    tball.setMode( Trackball::OSGObject );
    tball.setStartPosition( pos, true );
    tball.setSum( true );
    tball.setTranslationMode( Trackball::OSGFree );

    // run...

    glutMainLoop();

    return 0;
}

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

    // GLUT init
    glutInit(&argc, argv);
    
    bool stereobuffer = false;
    bool amberblue = false;
    if(argc >= 2 && !strcmp(argv[1],"-s"))
    {
        stereobuffer = true;
        --argc, ++argv;
    }
    if(argc >= 2 && !strcmp(argv[1],"-a"))
    {
        amberblue = true;
        --argc, ++argv;
    }
    
    
    glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE |
                        (stereobuffer?GLUT_STEREO:0) );
    
    glutCreateWindow("OpenSG");
    
    glutReshapeFunc(reshape);
    glutDisplayFunc(display);
    glutIdleFunc(display);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutKeyboardFunc(keyboard);

    PassiveWindowPtr pwin=PassiveWindow::create();
    pwin->init();

    // create the scene
    NodePtr scene;
    
    if(argc > 1)
    {
        scene = SceneFileHandler::the().read(argv[1]);
    }
    else
    {
        scene = makeBox(2,2,2, 1,1,1);
    }

    // create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // create the window and initial camera/viewport
    mgr->setWindow(pwin );
    // tell the manager what to manage
    mgr->setRoot  (scene);
    
    // now create the second vp for stereo
    ViewportPtr vp = pwin->getPort(0);
    
    PerspectiveCameraPtr cam = PerspectiveCameraPtr::dcast(vp->getCamera());
    beginEditCP(cam);
    cam->setFov(deg2rad(90));
    cam->setAspect(1);
    endEditCP  (cam);

    Navigator *nav = mgr->getNavigator();
    nav->setAt(Pnt3f(0,0,0));
    nav->setDistance(1.5);
    
    mgr->showAll();
    
    // create the decorators and the second viewport
    ViewportPtr vpleft,vpright;
       
    decoleft = ShearedStereoCameraDecorator::create();
    decoright = ShearedStereoCameraDecorator::create();
    
    beginEditCP(decoleft);
    decoleft->setEyeSeparation(ed);
    decoleft->setZeroParallaxDistance(zpp);
    decoleft->setLeftEye(true);  
    decoleft->setDecoratee(cam);  
    endEditCP  (decoleft);
    
    beginEditCP(decoright);
    decoright->setEyeSeparation(ed);
    decoright->setZeroParallaxDistance(zpp);
    decoright->setLeftEye(false);  
    decoright->setDecoratee(cam);  
    endEditCP  (decoright);

    if(amberblue)
    {
        ColorBufferViewportPtr svpleft = ColorBufferViewport::create();
        ColorBufferViewportPtr svpright = ColorBufferViewport::create();
 
        beginEditCP(svpleft);
        svpleft->setLeft(0);
        svpleft->setRight(1);
        svpleft->setBottom(0);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    endEditCP(sroot);

    // the billboard
 
    NodePtr bnode = Node::create();
    bill = Billboard::create();
    beginEditCP(bnode);
    bnode->setCore( bill );
    endEditCP(bnode);

    beginEditCP(tnode);
    tnode->addChild(bnode);
    endEditCP(tnode);
  
    // a geometry to billboard
    NodePtr geo = makeTorus( .2, 1, 16, 3);

    beginEditCP(bnode);
    bnode->addChild( geo );
    endEditCP(bnode);
 
    // a geometry to lead the render action somewhere else
    geo = makePlane( 2, 2, 2, 2 );

    beginEditCP(sroot);
    sroot->addChild( geo );
    endEditCP(sroot);

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

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

	// Camera
	PerspectiveCameraPtr cam = PerspectiveCamera::create();

	cam->setBeacon( b1n );
	cam->setFov( deg2rad( 60 ) );
	cam->setNear( .1 );
	cam->setFar( 20. );

	// Background
	GradientBackgroundPtr bkgnd = GradientBackground::create();
	
	bkgnd->addLine( Color3f( 0,0,0 ), 0 );
	bkgnd->addLine( Color3f( .5,.5,0 ), 0.5 );
	bkgnd->addLine( Color3f( .7,.7,1 ), 0.5 );
	bkgnd->addLine( Color3f( 0,0,1 ), 1 );

	// Viewport

	ViewportPtr vp = Viewport::create();
	vp->setCamera( cam );
	vp->setBackground( bkgnd );
	vp->setRoot( root );
	vp->setSize( 0,0, 1,1 );

	// Window
	std::cout << "GLUT winid: " << winid << std::endl;

	GLUTWindowPtr gwin;

	GLint glvp[4];
	glGetIntegerv( GL_VIEWPORT, glvp );

	gwin = GLUTWindow::create();
	gwin->setId(winid);
	gwin->setSize( glvp[2], glvp[3] );

	win = gwin;

	win->addPort( vp );

	// Actions
	
	dact = DrawAction::create();
	ract = RenderAction::create();

	// tball

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

	tball.setMode( Trackball::OSGObject );
	tball.setStartPosition( pos, true );
	tball.setSum( true );
	tball.setTranslationMode( Trackball::OSGFree );
    tball.setTranslationScale(10.);
	// run...
	
	glutMainLoop();
	
    return 0;
}

//.........这里部分代码省略.........
    NodePtr     medDetailNode = makeSphere( 1, 1 );
    GeometryPtr medSphereCore = GeometryPtr::dcast(medDetailNode->getCore());
    SimpleMaterialPtr medDetailMat = SimpleMaterial::create();
    medDetailMat->setDiffuse( Color3f( 0,1,0 ) );
    medDetailMat->setAmbient( Color3f( 0,1,0 ) );
    medSphereCore->setMaterial( medDetailMat );
    
    NodePtr highDetailNode = makeSphere( 2, 1 );
    GeometryPtr highSphereCore = GeometryPtr::dcast(highDetailNode->getCore());
    SimpleMaterialPtr highDetailMat = SimpleMaterial::create();
    highDetailMat->setDiffuse( Color3f( 0,0,1 ) );
    highDetailMat->setAmbient( Color3f( 0,0,1 ) );
    highDetailMat->setSpecular( Color3f(1, 1, 1) );
    highDetailMat->setShininess( 10 );
    highSphereCore->setMaterial( highDetailMat );
    
    NodePtr lodNode = Node::create();
    DistanceLODPtr lodNodeCore = DistanceLOD::create();
    beginEditCP(lodNode);
    lodNode->setCore(lodNodeCore);
    lodNode->addChild( highDetailNode );
    lodNode->addChild( medDetailNode );
    lodNode->addChild( lowDetailNode );
    endEditCP(lodNode);
    
    beginEditCP(lodNodeCore);
    lodNodeCore->editSFCenter()->setValue( Pnt3f(0, 0, 2) );
    lodNodeCore->editMFRange()->push_back( 4.0 );
    lodNodeCore->editMFRange()->push_back( 8.0 );
    lodNodeCore->editMFRange()->push_back( 11.0 );
    endEditCP(lodNodeCore);
    
        
    //TRANSFORM LOD
    NodePtr transLODNode = Node::create();
    TransformPtr transLODCore = Transform::create();
    transMat.setTranslate( 1, -1, -1 );
    beginEditCP(transLODCore);
    transLODCore->editSFMatrix()->setValue( transMat );
    endEditCP(transLODCore);
    beginEditCP( transLODNode );
    transLODNode->setCore( transLODCore );
    transLODNode->addChild( lodNode );
    endEditCP( transLODNode );
    
    
        
    //ROOT
    root = Node::create();
    GroupPtr rootCore = Group::create();
    beginEditCP(root);
    root->setCore(rootCore);
    root->addChild(transNode);
    root->addChild(transLODNode);
    endEditCP(root);
    
    
    
    camera = PerspectiveCamera::create();
    beginEditCP(camera);
    camera->setBeacon( beaconNode );
    camera->setFov( deg2rad(90) );
    camera->setNear( 0.1 );
    camera->setFar( 10000 );
    endEditCP(camera);
    
    SolidBackgroundPtr background = SolidBackground::create();
    
    viewp = Viewport::create();
    beginEditCP(viewp);
    viewp->setCamera( camera );
    viewp->setBackground( background );
    viewp->setRoot( root );
    viewp->setSize( 0,0, 1,1 );
    endEditCP(viewp);
    
    GLint glVP[4];
    glGetIntegerv( GL_VIEWPORT, glVP );
    
    GLUTWindowPtr gwin = GLUTWindow::create();
    gwin->setId(winID);
    gwin->setSize(glVP[2], glVP[3]);
    
    window = gwin;
    beginEditCP(window);
    window->addPort( viewp );
    window->init();
    endEditCP(window);
    
    drAct = DrawAction::create();
    
    Vec3f pos( 0, 0, 3 );
    tball.setMode( Trackball::OSGObject );
    tball.setStartPosition( pos, true );
    tball.setSum( true );
    tball.setTranslationMode( Trackball::OSGFree );

    glutMainLoop();
    return 0;
}

ComponentPtr createGLPanel(void)
{
    //Create the nessicary parts for a viewport

    //Camera Beacon
    Matrix TransformMatrix;
    TransformMatrix.setTranslate(0.0f,0.0f, 0.0f);
    TransformPtr CameraBeaconTransform = Transform::create();
    beginEditCP(CameraBeaconTransform, Transform::MatrixFieldMask);
        CameraBeaconTransform->setMatrix(TransformMatrix);
    endEditCP(CameraBeaconTransform, Transform::MatrixFieldMask);

    NodePtr CameraBeaconNode = Node::create();
    beginEditCP(CameraBeaconNode, Node::CoreFieldMask);
        CameraBeaconNode->setCore(CameraBeaconTransform);
    endEditCP(CameraBeaconNode, Node::CoreFieldMask);

    //Light Beacon
    Matrix LightTransformMatrix;
    LightTransformMatrix.setTranslate(0.0f,0.0f, 0.0f);
    TransformPtr LightBeaconTransform = Transform::create();
    beginEditCP(LightBeaconTransform, Transform::MatrixFieldMask);
        LightBeaconTransform->setMatrix(TransformMatrix);
    endEditCP(LightBeaconTransform, Transform::MatrixFieldMask);

    NodePtr LightBeaconNode = Node::create();
    beginEditCP(LightBeaconNode, Node::CoreFieldMask);
        LightBeaconNode->setCore(CameraBeaconTransform);
    endEditCP(LightBeaconNode, Node::CoreFieldMask);
    
    //Light Node
    DirectionalLightPtr TheDirectionLight = DirectionalLight::create();
    beginEditCP(TheDirectionLight, DirectionalLight::DirectionFieldMask);
        TheDirectionLight->setDirection(0.0f,1.0f,0.0f);
    endEditCP(TheDirectionLight, DirectionalLight::DirectionFieldMask);

    NodePtr LightNode = Node::create();
    beginEditCP(LightNode, Node::CoreFieldMask | Node::ChildrenFieldMask);
        LightNode->setCore(TheDirectionLight);
        LightNode->addChild(createScene());
    endEditCP(LightNode, Node::CoreFieldMask | Node::ChildrenFieldMask);

    // Make Torus Node (creates Torus in background of scene)
    NodePtr GeometryNode = makeTorus(.5, 2, 32, 32);

    // Make Main Scene Node and add the Torus
    NodePtr DefaultRootNode = osg::Node::create();
    beginEditCP(DefaultRootNode, Node::CoreFieldMask | Node::ChildrenFieldMask);
        DefaultRootNode->setCore(osg::Group::create());
        DefaultRootNode->addChild(CameraBeaconNode);
        DefaultRootNode->addChild(LightBeaconNode);
        DefaultRootNode->addChild(LightNode);
    endEditCP(DefaultRootNode, Node::CoreFieldMask | Node::ChildrenFieldMask);

    //Camera
    PerspectiveCameraPtr DefaultCamera = PerspectiveCamera::create();
     beginEditCP(DefaultCamera);
         DefaultCamera->setBeacon(CameraBeaconNode);
         DefaultCamera->setFov   (deg2rad(60.f));
         DefaultCamera->setNear  (0.1f);
         DefaultCamera->setFar   (100.f);
     endEditCP(DefaultCamera);

    //Background
    GradientBackgroundPtr DefaultBackground = GradientBackground::create();
    beginEditCP(DefaultBackground, GradientBackground::ColorFieldMask | GradientBackground::PositionFieldMask);
        DefaultBackground->addLine(Color3f(0.0f,0.0f,0.0f), 0.0f);
        DefaultBackground->addLine(Color3f(0.0f,0.0f,1.0f), 1.0f);
    endEditCP(DefaultBackground, GradientBackground::ColorFieldMask | GradientBackground::PositionFieldMask);
    
    //Viewport
    ViewportPtr DefaultViewport = Viewport::create();
    beginEditCP(DefaultViewport);
        DefaultViewport->setCamera                  (DefaultCamera);
        DefaultViewport->setRoot                    (DefaultRootNode);
        DefaultViewport->setSize                    (0.0f,0.0f, 1.0f,1.0f);
        DefaultViewport->setBackground              (DefaultBackground);
    endEditCP(DefaultViewport);

    //GL Viewport Component

    GLViewportPtr TheGLViewport = GLViewport::create();
    beginEditCP(TheGLViewport, GLViewport::PortFieldMask | GLViewport::PreferredSizeFieldMask | GLViewport::BordersFieldMask);
        TheGLViewport->setPort(DefaultViewport);
        TheGLViewport->setPreferredSize(Vec2f(1024.0f,768.0f));
    endEditCP(TheGLViewport, GLViewport::PortFieldMask | GLViewport::PreferredSizeFieldMask | GLViewport::BordersFieldMask);
    
    TheGLViewport->showAll();

    return TheGLViewport;
}

void ApplicationBuilder::attachApplication(void)
{
	Inherited::attachApplication();

	beginEditCP(ApplicationBuilderPtr(this) , ApplicationBuilder::EditingProjectFieldMask);
		setEditingProject(MainApplication::the()->getProject());
	endEditCP(ApplicationBuilderPtr(this) , ApplicationBuilder::EditingProjectFieldMask);

	
	//Camera Beacon
	Matrix TransformMatrix;
	TransformPtr CameraBeaconTransform = Transform::create();
	beginEditCP(CameraBeaconTransform, Transform::MatrixFieldMask);
		CameraBeaconTransform->setMatrix(TransformMatrix);
	endEditCP(CameraBeaconTransform, Transform::MatrixFieldMask);

	NodePtr CameraBeaconNode = Node::create();
	beginEditCP(CameraBeaconNode, Node::CoreFieldMask);
		CameraBeaconNode->setCore(CameraBeaconTransform);
	endEditCP(CameraBeaconNode, Node::CoreFieldMask);

    // Make Main Scene Node empty
    NodePtr DefaultRootNode = osg::Node::create();
    beginEditCP(DefaultRootNode, Node::CoreFieldMask | Node::ChildrenFieldMask);
        DefaultRootNode->setCore(osg::Group::create());
        DefaultRootNode->addChild(CameraBeaconNode);
    endEditCP(DefaultRootNode, Node::CoreFieldMask | Node::ChildrenFieldMask);
	
	//Camera
	PerspectiveCameraPtr DefaultCamera = PerspectiveCamera::create();
	beginEditCP(DefaultCamera);
		DefaultCamera->setBeacon(CameraBeaconNode);
		DefaultCamera->setFov   (deg2rad(60.f));
		DefaultCamera->setNear  (0.1f);
		DefaultCamera->setFar   (10000.f);
	endEditCP(DefaultCamera);

	//Background
	SolidBackgroundPtr DefaultBackground = SolidBackground::create();
	beginEditCP(DefaultBackground, SolidBackground::ColorFieldMask);
		DefaultBackground->setColor(Color3f(0.0f,0.0f,0.0f));
	endEditCP(DefaultBackground, SolidBackground::ColorFieldMask);

	//Icon Manager
	_IconManager = DefaultIconManager::create();
	
	//User Interface
	ForegroundPtr UserInterfaceForeground = createInterface();
    beginEditCP(_TheBuilderInterface->getDrawingSurface(), UIDrawingSurface::EventProducerFieldMask);
        _TheBuilderInterface->getDrawingSurface()->setEventProducer(MainApplication::the()->getMainWindowEventProducer());
    endEditCP(_TheBuilderInterface->getDrawingSurface(), UIDrawingSurface::EventProducerFieldMask);

	//Viewport
	if(MainApplication::the()->getMainWindowEventProducer()->getWindow() != NullFC && MainApplication::the()->getMainWindowEventProducer()->getWindow()->getPort().size() == 0)
	{
		ViewportPtr DefaultViewport = Viewport::create();
		beginEditCP(DefaultViewport);
			DefaultViewport->setCamera                  (DefaultCamera);
			DefaultViewport->setRoot                    (DefaultRootNode);
			DefaultViewport->setSize                    (0.0f,0.0f, 1.0f,1.0f);
			DefaultViewport->setBackground              (DefaultBackground);
			DefaultViewport->getForegrounds().push_back    (UserInterfaceForeground);
		endEditCP(DefaultViewport);

		beginEditCP(MainApplication::the()->getMainWindowEventProducer()->getWindow(), Window::PortFieldMask);
			MainApplication::the()->getMainWindowEventProducer()->getWindow()->addPort(DefaultViewport);
		endEditCP(MainApplication::the()->getMainWindowEventProducer()->getWindow(), Window::PortFieldMask);
	}
}

//.........这里部分代码省略.........
        scene->addChild(cylinder2_trans_node);
    endEditCP(scene);

    vp = ShadowViewport::create();
    
    GradientBackgroundPtr gbg = GradientBackground::create();
    SolidBackgroundPtr sbg = SolidBackground::create();

    UChar8 imgdata[] = {  255,0,0,  0,255,0,  0,0,255, 255,255,0 };
    ImagePtr img1 = Image::create();
    img1->set(Image::OSG_RGB_PF, 2, 2, 1, 1, 1, 0, imgdata);

    TextureChunkPtr tcPtr = TextureChunk::create();
    beginEditCP(tcPtr);
        tcPtr->setImage(img1);
    endEditCP(tcPtr);
    TextureBackgroundPtr bkg = TextureBackground::create();
    beginEditCP(bkg);
        bkg->setTexture(tcPtr);
    endEditCP(bkg);
    
    beginEditCP(sbg);
        sbg->setColor(Color3f(0.2,0.4,0.6));
    endEditCP(sbg);
    
    beginEditCP(gbg);
        gbg->addLine(Color3f(0.7, 0.7, 0.8), 0);
        gbg->addLine(Color3f(0.1, 0.1, 0.3), 1);
    endEditCP(gbg);

    beginEditCP(rootNode);
        rootNode->addChild(point1);
        rootNode->addChild(point1_beacon);
        rootNode->addChild(point2_beacon);
    endEditCP(rootNode);

    //FBOViewportPtr
    fbo_vp = FBOViewport::create();
    addRefCP(fbo_vp);

    // the Camera for the map
    cam = PerspectiveCamera::create();
    beginEditCP(cam);
        cam->setFov(osgdegree2rad(90));
        cam->setAspect(1);
        cam->setNear(0.001);
        cam->setFar(10000);
        cam->setBeacon(box_trans_node);
    endEditCP(cam);

    beginEditCP(fbo_vp);
        fbo_vp->setBackground(bkg);
        fbo_vp->setRoot(rootNode);
        fbo_vp->setCamera(cam);
        fbo_vp->setSize(0,0,imageWinWidth-1, imageWinHeight-1);
        fbo_vp->setStorageWidth(imageWinWidth);
        fbo_vp->setStorageHeight(imageWinHeight);
        fbo_vp->setDirty(true);
        fbo_vp->editMFTextures    ()->push_back(plane_tex);
        fbo_vp->editMFExcludeNodes()->push_back(plane);
        fbo_vp->setFboOn(true);
    endEditCP(fbo_vp);

    // normal shadow viewport
    beginEditCP(vp);
        vp->setBackground(gbg);
        vp->setRoot(rootNode);
        vp->setSize(0,0,1,1);
    endEditCP(vp);

    beginEditCP(gwin); //Window
        gwin->setId(winid);
        gwin->addPort(vp);
        gwin->init();
    endEditCP(gwin);

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

    // create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

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

    //Viewport
    beginEditCP(vp);
        vp->setCamera(mgr->getCamera());
    endEditCP(vp);

    mgr->turnHeadlightOff();

    mgr->showAll();

    // GLUT main loop
    glutMainLoop();

    return 0;
}

//.........这里部分代码省略.........
    root->addChild(dlight);
    endEditCP(root);

    // Load the file
    NodePtr     fileRoot = Node::create();

    //  OSGActivateColMatPtr colMat = OSGActivateColMat::create();
    GroupPtr    gr = Group::create();

    beginEditCP(fileRoot);

    //  fileRoot->setCore(colMat);
    fileRoot->setCore(gr);
    endEditCP(fileRoot);

    beginEditCP(dlight);
    dlight->addChild(fileRoot);
    endEditCP(dlight);

    //   for(UInt32 numFiles = 1; numFiles < argc; numFiles++)
    //    {
    //       file = SceneFileHandler::the().read(argv[1]);
    file = loader.getRootNode();
    beginEditCP(fileRoot);
    fileRoot->addChild(file);
    fileRoot->invalidateVolume();
    endEditCP(fileRoot);

    //    }
    dlight->updateVolume();

    Vec3f   min, max;
    dlight->getVolume().getBounds(min, max);

    std::cout << "Volume: from " << min << " to " << max << std::endl;

    //std::cerr << "Tree: " << std::endl;
    //root->dump();
    // Camera
    PerspectiveCameraPtr    cam = PerspectiveCamera::create();

    cam->setBeacon(b1n);
    cam->setFov(deg2rad(60));
    cam->setNear(1.);
    cam->setFar(100000.);

    // Background
    GradientBackgroundPtr   bkgnd = GradientBackground::create();

    bkgnd->addLine(Color3f(0, 0, 0), 0);
    bkgnd->addLine(Color3f(.5, .5, 0), 0.5);
    bkgnd->addLine(Color3f(.7, .7, 1), 0.5);
    bkgnd->addLine(Color3f(0, 0, 1), 1);

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

    // Window
    std::cout << "GLUT winid: " << winid << std::endl;

    GLUTWindowPtr   gwin;

    GLint           glvp[4];
    glGetIntegerv(GL_VIEWPORT, glvp);

    gwin = GLUTWindow::create();
    gwin->setId(winid);
    gwin->setSize(glvp[2], glvp[3]);

    win = gwin;

    win->addPort(vp);

    // Actions
    dact = DrawAction::create();
    ract = RenderAction::create();

    // tball
    /*
	Vec3f pos(min[0] + 0.5 * (max[0] - min[0]),
              min[1] + 0.5 * (max[1] - min[1]),
              max[2] + 1.5 * (max[2] - min[2]));
*/
    Vec3f   pos(0, 0, max[2] + 1.5 * (max[2] - min[2]));

    tball.setMode(Trackball::OSGObject);
    tball.setStartPosition(pos, true);
    tball.setSum(true);
    tball.setTranslationMode(Trackball::OSGFree);
    tball.setTranslationScale(10000.);

    // run...
    glutMainLoop();

    return 0;
}

FBOViewportPtr createSceneFBO(void)
{
    //Create Camera Beacon
    Matrix CameraMat;
    CameraMat.setTranslate(0.0f,0.0f,4.0f);
    TransformPtr CameraBeconCore = Transform::create();
    beginEditCP(CameraBeconCore, Transform::MatrixFieldMask);
        CameraBeconCore->setMatrix(CameraMat);
    endEditCP(CameraBeconCore, Transform::MatrixFieldMask);

    NodePtr CameraBeconNode = Node::create();
    beginEditCP(CameraBeconNode, Node::CoreFieldMask);
        CameraBeconNode->setCore(CameraBeconCore);
    endEditCP(CameraBeconNode, Node::CoreFieldMask);

    //Create Camera
    PerspectiveCameraPtr TheCamera = PerspectiveCamera::create();
    beginEditCP(TheCamera);
        TheCamera->setFov(deg2rad(60.0f));
        TheCamera->setAspect(1.0f);
        TheCamera->setNear(0.1f);
        TheCamera->setFar(100.0f);
        TheCamera->setBeacon(CameraBeconNode);
    endEditCP(TheCamera);
    
    //Make the Material
    BlinnMaterialPtr TheMaterial = BlinnMaterial::create();
    beginEditCP(TheMaterial);
        TheMaterial->setDiffuse(0.8);
        TheMaterial->setColor(Color3f(1.0,1.0,1.0));
        TheMaterial->setAmbientColor(Color3f(1.0,1.0,1.0));
        TheMaterial->setNumLights(1);
    endEditCP(TheMaterial);

										
    // Make Torus Node (creates Torus in background of scene)
    NodePtr TorusGeometryNode = makeTorus(.5, 2, 24, 48);

    beginEditCP(TorusGeometryNode->getCore());
        GeometryPtr::dcast(TorusGeometryNode->getCore())->setMaterial(TheMaterial);
    endEditCP(TorusGeometryNode->getCore());
    calcVertexNormals(GeometryPtr::dcast(TorusGeometryNode->getCore()));
    calcVertexTangents(GeometryPtr::dcast(TorusGeometryNode->getCore()),0,Geometry::TexCoords7FieldId, Geometry::TexCoords6FieldId);

    RootTransformCore = Transform::create();

    NodePtr TorusTransformNode = Node::create();
    beginEditCP(TorusTransformNode, Node::CoreFieldMask);
        TorusTransformNode->setCore(RootTransformCore);
        TorusTransformNode->addChild(TorusGeometryNode);
    endEditCP(TorusTransformNode, Node::CoreFieldMask);

    //Create Light Beacon
    Matrix LightMat;
    LightMat.setTranslate(0.0f,10.0f,1.0f);
    TransformPtr LightBeconCore = Transform::create();
    beginEditCP(LightBeconCore, Transform::MatrixFieldMask);
        LightBeconCore->setMatrix(LightMat);
    endEditCP(LightBeconCore, Transform::MatrixFieldMask);

    NodePtr LightBeconNode = Node::create();
    beginEditCP(LightBeconNode, Node::CoreFieldMask);
        LightBeconNode->setCore(LightBeconCore);
    endEditCP(LightBeconNode, Node::CoreFieldMask);

    //Create Light
    TheLight = PointLight::create();
    beginEditCP(TheLight);
        TheLight->setBeacon(LightBeconNode);
    endEditCP(TheLight);

    NodePtr LightNode = Node::create();
    beginEditCP(LightNode, Node::CoreFieldMask);
        LightNode->setCore(TheLight);
        LightNode->addChild(TorusTransformNode);
    endEditCP(LightNode, Node::CoreFieldMask);


    //Create Root

    NodePtr TheRoot = Node::create();
    beginEditCP(TheRoot);
        TheRoot->setCore(Group::create());
        TheRoot->addChild(CameraBeconNode);
        TheRoot->addChild(LightNode);
        TheRoot->addChild(LightBeconNode);
    endEditCP(TheRoot);

    //Create Background
    SolidBackgroundPtr TheBackground = SolidBackground::create();
    TheBackground->setColor(Color3f(1.0,0.0,0.0));

    //DepthClearBackgroundPtr TheBackground = DepthClearBackground::create();

    //Create the Image
    ImagePtr TheColorImage = Image::create();
    TheColorImage->set(Image::OSG_RGB_PF,2,2,1,1,1,0.0f,0,Image::OSG_FLOAT16_IMAGEDATA);

    //Create the texture
    TextureChunkPtr TheColorTextureChunk = TextureChunk::create();
//.........这里部分代码省略.........

int main( int argc, char **argv )
{
    Int32 i,
          retVal;

    // OSG init

    osgInit(argc, argv);
    basetime = getSystemTime();
    gThreadManager = ThreadManager::the();  


    SceneFileHandler::the().print();

    // create the graph

    // beacon for camera and light  
    NodePtr b1n = Node::create();
    GroupPtr b1 = Group::create();
    beginEditCP(b1n);
    b1n->setCore( b1 );
    endEditCP(b1n);

    // transformation
    NodePtr t1n = Node::create();
    TransformPtr t1 = Transform::create();
    beginEditCP(t1n);
    t1n->setCore( t1 );
    t1n->addChild( b1n );
    endEditCP(t1n);

    cam_trans = t1;

    // light
    
    NodePtr dlight = Node::create();
    DirectionalLightPtr dl = DirectionalLight::create();

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

    // root
    root = Node::create();
    GroupPtr gr1 = Group::create();
    beginEditCP(root);
    root->setCore( gr1 );
    root->addChild( t1n );
    root->addChild( dlight );
    endEditCP(root);

    // Load the file

    NodePtr file = NullFC;
    
    if ( argc > 1 )
        file = SceneFileHandler::the().read(argv[1]);
    
    if ( file == NullFC )
    {
        std::cerr << "Couldn't load file, ignoring" << std::endl;
        file = makePlane( 2,2,2,2 );
    }
    
    file->updateVolume();

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

    beginEditCP(dlight);
    dlight->addChild( file );
    endEditCP(dlight);

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

    // Camera
    PerspectiveCameraPtr cam = PerspectiveCamera::create();

    cam->setBeacon( b1n );
    cam->setFov( deg2rad( 60 ) );
    cam->setNear( 0.1 );
    cam->setFar( 10000 );

    // Background
    GradientBackgroundPtr bkgnd = GradientBackground::create();
    bkgnd->addLine( Color3f( 0,0,0 ), 0 );
    bkgnd->addLine( Color3f( 0,0,1 ), 0 );

    
    // Action
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        {
            fprintf(stderr, "FCPtr NULL\n");
        }
    }
    else
    {
        fprintf(stderr, "Binder NULL\n");
    }
    */

    file = aVRMLToOSG.getRoot();

    if(file == NullFC)
        return 0;
 
    file->updateVolume();

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

    beginEditCP(dlight);
    dlight->addChild( file );
    endEditCP(dlight);

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

    // Camera
    
    cam = PerspectiveCamera::create();
    cam->setBeacon( b1n );
    cam->setFov( deg2rad( 90 ) );
    cam->setNear( 0.1 );
    cam->setFar( 10000 );

    // Background
    SolidBackgroundPtr bkgnd = SolidBackground::create();

    // Viewport

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

    // Window
    cout << "GLUT winid: " << winid << endl;

    GLUTWindowPtr gwin;

    GLint glvp[4];
    glGetIntegerv( GL_VIEWPORT, glvp );

    gwin = GLUTWindow::create();
    gwin->setId(winid);
    gwin->setSize( glvp[2], glvp[3] );

    win = gwin;

    win->addPort( vp );

    win->init();

//.........这里部分代码省略.........
  obj3Pnts->addValue( Pnt3f(4, 0,0) );
  endEditCP( obj3Pnts );
  
  beginEditCP( obj3Types );
  //obj3Types->addValue( GL_TRIANGLES );
  //obj3Types->addValue( GL_QUADS );
  //obj3Types->addValue( GL_TRIANGLES );
  obj3Types->addValue( GL_POLYGON );
  endEditCP( obj3Types );
  
  beginEditCP( obj3Lengths );
  //obj3Lengths->addValue( 3 );
  //obj3Lengths->addValue( 4 );
  //obj3Lengths->addValue( 3 );
  
  obj3Lengths->addValue( 6 );
  endEditCP( obj3Lengths );
   
  beginEditCP( obj3Colors );
  for( UInt32 i=0; i<obj3Pnts->getSize(); ++i )
  {
      obj3Colors->addValue( Color3f(.7,.7,.7) );
  }
  endEditCP( obj3Colors );
  
  beginEditCP( obj3Index );
  //for( UInt32 i=0; i<obj3Pnts->getSize(); ++i )
  //{
  // obj3Index->addValue( i );
  //}
  obj3Index->addValue( 0 );
  obj3Index->addValue( 1 );
  obj3Index->addValue( 5 );
  obj3Index->addValue( 9 );
  obj3Index->addValue( 6 );
  obj3Index->addValue( 2 );
  endEditCP( obj3Index );
  
  beginEditCP( obj3Core );
  obj3Core->setIndices( obj3Index );
  obj3Core->setPositions( obj3Pnts );
  obj3Core->setTypes( obj3Types );
  obj3Core->setLengths( obj3Lengths );
  obj3Core->setColors( obj3Colors );
  endEditCP( obj3Core );
  
  beginEditCP( objects[3] );
  objects[3]->setCore( obj3Core );
  endEditCP( objects[3] );
  calcFaceNormals( GeometryPtr::dcast(objects[3]->getCore()) );
  normals[3] = calcFaceNormalsGeo( GeometryPtr::dcast(objects[3]->getCore()), 0.5 );
    
  //ROOT
  root = Node::create();
  GroupPtr rootCore = Group::create();
  beginEditCP(root);
  root->setCore(rootCore);
  root->addChild(transNode);
  root->addChild(objects[0]);
  root->addChild(normals[0]);
  activeObj = root->findChild( objects[0] );
  activeNorm = root->findChild( normals[0] );
  endEditCP(root);
  
  camera = PerspectiveCamera::create();
  camera->setBeacon( beaconNode );
  camera->setFov( 90 );
  camera->setNear( 0.1 );
  camera->setFar( 10000 );
  
  SolidBackgroundPtr background = SolidBackground::create();
  
  viewp = Viewport::create();
  viewp->setCamera( camera );
  viewp->setBackground( background );
  viewp->setRoot( root );
  viewp->setSize( 0,0, 1,1 );
  
  GLint glVP[4];
  glGetIntegerv( GL_VIEWPORT, glVP );
  
  GLUTWindowPtr gwin = GLUTWindow::create();
  gwin->setId(winID);
  gwin->setSize(glVP[2], glVP[3]);
  
  window = gwin;
  window->addPort( viewp );
  window->init();
  
  drAct = DrawAction::create();
  
  Vec3f pos( 0, 0, 3 );
  tball.setMode( Trackball::OSGObject );
  tball.setStartPosition( pos, true );
  tball.setSum( true );
  tball.setTranslationMode( Trackball::OSGFree );
  
  glutMainLoop();
  return 0;
}