C++ osg::WindowRecPtr类代码示例

void motion(int x, int y)
{   
    OSG::Real32 w = win->getWidth(), h = win->getHeight();
    

    OSG::Real32  a = -2. * ( lastx / w - .5 ),
                 b = -2. * ( .5 - lasty / h ),
                 c = -2. * ( x / w - .5 ),
                 d = -2. * ( .5 - y / h );

    if ( mouseb & ( 1 << GLUT_LEFT_BUTTON ) )
    {
        tball.updateRotation( a, b, c, d );     
    }
    else if ( mouseb & ( 1 << GLUT_MIDDLE_BUTTON ) )
    {
        tball.updatePosition( a, b, c, d );     
    }
    else if ( mouseb & ( 1 << GLUT_RIGHT_BUTTON ) )
    {
        tball.updatePositionNeg( a, b, c, d );  
    }
    lastx = x;
    lasty = y;
}

void display(void)
{
#if 0
    Matrix m1, m2, m3;
    Quaternion q1;

    tball.getRotation().getValue(m3);

    q1.setValue(m3);

    m1.setRotate(q1);
    
    m2.setTranslate( tball.getPosition() );
    
    m1.mult( m2 );

    if(move_obj == true)
    {
        scene_trans->editSFMatrix()->setValue( m1 );
    }
    else
    {
        cam_trans->editSFMatrix()->setValue( m1 );
    }
#endif

    cam_trans->editSFMatrix()->setValue(tball.getFullTrackballMatrix());

#if 0
    fprintf(stderr, "%f %f %f\n", 
            cam_trans->getMatrix()[3][0],
            cam_trans->getMatrix()[3][1],
            cam_trans->getMatrix()[3][2]);
#endif

    OSG::Real32 t = glutGet(GLUT_ELAPSED_TIME);

    for(OSG::UInt32 i = 0; i < 6; ++i)
    {
        if(pAnimTrs[i] != NULL)
        {
            pAnimTrs[i]->editRotation().setValueAsAxisDeg(
                0.f, 1.f, 0.f, 
                t / 50.f);
        }
    }

    OSG::commitChanges();

//    fprintf(stderr, "Frame start\n");
//    fprintf(stderr, "============================================\n");
    

    win->render(rentravact);
}

void display(void)
{
    OSG::Matrix m1;
    
    m1 = tball.getFullTrackballMatrix();

    cam_trans->editSFMatrix()->setValue(m1);

    OSG::commitChanges();

    win->render(rentravact);
}

void display(void)
{
    OSG::Matrix m1, m2, m3;
    OSG::Quaternion q1;

    tball.getRotation().getValue(m3);

    q1.setValue(m3);

    m1.setRotate(q1);
    
//    std::cout << "TBROT" << std::endl << tball.getRotation() << endl;
//    std::cout << "M3" << std::endl << m3 << std::endl;
//    std::cout << "Q1" << std::endl << q1 << std::endl;
//    std::cout << "M1" << std::endl << m1 << std::endl;

//  m1.setRotate( tball.getRotation() );
    m2.setTranslate( tball.getPosition() );
    
//std::cout << "Pos: " << tball.getPosition() << ", Rot: " << tball.getRotation() << std::endl;

//    std::cout << tball.getRotation() << std::endl;

    m1.mult( m2 );

//    std::cerr << m1 << std::endl;
    
    m1 = tball.getFullTrackballMatrix();

    if(move_obj == true)
    {
        scene_trans->editSFMatrix()->setValue( m1 );
    }
    else
    {
        cam_trans->editSFMatrix()->setValue( m1 );
    }

    OSG::commitChangesAndClear();

    win->render(rentravact);

    if(dumpImg == true)
    {
        vpFBO->setTravMask(oldTravMask);

        pTexBuffer                   ->setReadBack               (false);
        vpFBO->getFrameBufferObject()->setPostProcessOnDeactivate(false);

        pImg->write("/tmp/test.png");

        dumpImg = false;
    }

    if(dumpImg_RB == true)
    {
        pRenBuffer->getImage()->write("/tmp/test1.png");

        dumpImg_RB = false;

        win->subPortByObj(vpFBO_RB);

        vpFBO_RB   = NULL;
        pRenBuffer = NULL;

        win->runFrameExit();

//        OSG::FieldContainerFactory::the()->dump();
    }


//    win->render(renact);

//    std::cerr << "------------- AR START --------------" << std::endl;

//    Thread::getCurrentChangeList()->dump();
}

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

    glutInit(&argc, argv);
    glutInitDisplayMode( GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE);
    int winid = glutCreateWindow("OpenSG");
    glutKeyboardFunc(key);
    glutVisibilityFunc(vis);
    glutReshapeFunc(reshape);
    glutDisplayFunc(display);       
    glutMouseFunc(mouse);   
    glutMotionFunc(motion); 
    
    glutIdleFunc(display);  

    // glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
    
//    glEnable( GL_DEPTH_TEST );
//    glEnable( GL_LIGHTING );
//    glEnable( GL_LIGHT0 );
//    glFrontFace(GL_CW);
    glEnable(GL_CULL_FACE);

    // OSG

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

    // 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();
    OSG::DirectionalLightUnrecPtr dl = OSG::DirectionalLight::create();

    dlight->setCore( dl );
//    dlight->setCore( Group::create() );
    
    dl->setAmbient( .0, .0, .0, 1 );
    dl->setDiffuse( .8f, .8f, .8f, 1.f );
    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 file = NULL;
    
    if(argc > 1)
        file = OSG::SceneFileHandler::the()->read(argv[1], NULL);
    
    if ( file == NULL )
    {
        std::cerr << "Couldn't load file, ignoring" << std::endl;

        file = OSG::makeSphere(4, 2.0);

    }

#if 0
    OSG::GeometryPtr pGeo = cast_dynamic<OSG::GeometryPtr>(file->getCore());
    
    if(pGeo == NULL && file->getNChildren() != 0)
    {
        pGeo = cast_dynamic<OSG::GeometryPtr>(file->getChild(0)->getCore());
    }

    if(pGeo == NULL)
    {
        fprintf(stderr, "no geo\n");
    }
#endif

//    OSG::GraphOpRefPtr op = OSG::GraphOpFactory::the()->create("Stripe");

//    op->traverse(file);
//.........这里部分代码省略.........

void key(unsigned char key, int x, int y)
{
    switch ( key )
    {
        case 27:    
            root        = NULL;
            file        = NULL;
            cam         = NULL;
            vp          = NULL;
            win         = NULL;
            cam_trans   = NULL;
            scene_trans = NULL;
            pPoly       = NULL;
            pCOver      = NULL;
            gwin        = NULL;

            tx1o        = NULL;
            tx1e        = NULL;

            vpFBO       = NULL;
            vpFBO_RB    = NULL;
            pTexBuffer  = NULL;
            pRenBuffer  = NULL;
            pImg        = NULL;

            delete rentravact;

            OSG::osgExit(); 

            exit(0);
        case 'f':
            vpFBO->setTravMask(~vpFBO->getTravMask());
            break;
        case 'd':
            oldTravMask = vpFBO->getTravMask();

            if(oldTravMask == 0x0000)
            {
                vpFBO->setTravMask(~vpFBO->getTravMask());
            }

            dumpImg = true;

            pTexBuffer                   ->setReadBack               (true);
            vpFBO->getFrameBufferObject()->setPostProcessOnDeactivate(true);

            break;

        case 'r':
        {
//            OSG::FieldContainerFactory::the()->dump();
            //RenderBuffer Readback
            // Background
            OSG::SolidBackgroundUnrecPtr bkgndFBO_RB = 
                OSG::SolidBackground::create();

            bkgndFBO_RB->setColor(OSG::Color3f(0.5,1.0,0.5));
    
            // Viewport

            vpFBO_RB = OSG::FBOViewport::create();

            vpFBO_RB->setCamera    (cam        );
            vpFBO_RB->setBackground(bkgndFBO_RB);
            vpFBO_RB->setRoot      (root       );
            vpFBO_RB->setSize      (0, 0, 1, 1 );
            
            OSG::FrameBufferObjectUnrecPtr pFBO_RB = 
                OSG::FrameBufferObject::create();
            
            pRenBuffer = OSG::RenderBuffer::create();

            OSG::RenderBufferUnrecPtr  pDepthBuffer_RB = 
                OSG::RenderBuffer::create();

            pDepthBuffer_RB->setInternalFormat(GL_DEPTH_COMPONENT24   );
            pRenBuffer->setInternalFormat(GL_RGBA);
            
            OSG::ImageUnrecPtr pImg_RB = OSG::Image::create();
    
            OSG::UInt32 uiImgSize = 4096;

            pImg_RB->set(OSG::Image::OSG_RGB_PF, uiImgSize, uiImgSize);

            fprintf(stderr, "Image data : %p\n", pImg_RB->getData());

            pRenBuffer->setImage(pImg_RB);

            pFBO_RB->setSize(uiImgSize, uiImgSize);
    
            pFBO_RB->setColorAttachment(pRenBuffer,     0);
            pFBO_RB->setDepthAttachment(pDepthBuffer_RB  );

            pFBO_RB->editMFDrawBuffers()->clear();
            pFBO_RB->editMFDrawBuffers()->push_back(GL_COLOR_ATTACHMENT0_EXT);

            vpFBO_RB->setFrameBufferObject(pFBO_RB);

            pRenBuffer                      ->setReadBack               (true);
            vpFBO_RB->getFrameBufferObject()->setPostProcessOnDeactivate(true);
//.........这里部分代码省略.........

void reshape( int w, int h )
{
    std::cerr << "Reshape: " << w << "," << h << std::endl;
    win->resize( w, h );
}

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

    glutInit(&argc, argv);
    glutInitDisplayMode( GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE);
    int winid = glutCreateWindow("OpenSG");
    glutKeyboardFunc(key);
    glutVisibilityFunc(vis);
    glutReshapeFunc(reshape);
    glutDisplayFunc(display);       
    glutMouseFunc(mouse);   
    glutMotionFunc(motion); 
    
    glutIdleFunc(display);  

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

    // 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();
    OSG::DirectionalLightUnrecPtr dl     = OSG::DirectionalLight::create();

    dlight->setCore(dl);
    
    dl->setAmbient  (0.0, 0.0, 0.0, 1.0);
    dl->setDiffuse  (0.8, 0.8, 0.8, 1.0);
    dl->setDirection(0.0, 0.0, 1.0     );
    dl->setBeacon   (b1n               );

    // root
    OSG::NodeUnrecPtr  root = OSG::Node::create();
    OSG::GroupUnrecPtr gr1  = OSG::Group::create();

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

    // Load the file
    OSG::NodeUnrecPtr file = NULL;
    
    if(argc > 1)
    {
        file = OSG::SceneFileHandler::the()->read(argv[1], NULL);
    }

    if(file == NULL)
    {
        std::cerr << "Couldn't load file, ignoring" << std::endl;

        //file = OSG::makeSphere(4, 2.0);

        file = OSG::Node::create();
        OSG::AlgorithmStageUnrecPtr pStage = OSG::AlgorithmStage::create();

        file->setCore(pStage);

        pAlgo = OSG::GPUVolRTV2::create();

        pStage->setAlgorithm(pAlgo);

        // fix/freeze the node volume
        file->editVolume().setStatic(true);
        file->editVolume().setBounds( 0.f,   0.f,   0.f,
                                      1.f,   1.f,   1.f);
        
   }
   
    OSG::commitChanges();

    file->updateVolume();


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

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



//.........这里部分代码省略.........

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

    glutInit(&argc, argv);
    glutInitDisplayMode( GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE);
    glutInitWindowSize(800, 800);
    

    int winid = glutCreateWindow("OpenSG");
    glutKeyboardFunc(key);
    glutVisibilityFunc(vis);
    glutReshapeFunc(reshape);
    glutDisplayFunc(display);       
    glutMouseFunc(mouse);   
    glutMotionFunc(motion); 
    
    glutIdleFunc(display);  

    // OSG

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

    // create the graph

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

    fprintf(stderr, "Create b1n %p %d %d \n",
            b1n.get(),
            b1n->getRefCount(),
            b1n->getWeakRefCount());

    b1n->setCore( b1 );

    // transformation
    OSG::NodeUnrecPtr      t1n = OSG::Node::create();
    OSG::TransformUnrecPtr t1  = OSG::Transform::create();

    t1n->setCore (t1 );
    t1n->addChild(b1n);

    fprintf(stderr, "Create t1n %p %d %d \n",
            t1n.get(),
            t1n->getRefCount(),
            t1n->getWeakRefCount());

    cam_trans = t1;

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

    {
        dlight->setCore(dl);
        
        dl->setAmbient( .3f, .3f, .3f, 1 );
        dl->setDiffuse( .8f, .8f, .8f, .8f );
        dl->setDirection(0,0,1);
        dl->setBeacon( b1n);
    }

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

    hdrroot = OSG::Node::create();
    
    hdrroot->editVolume().setInfinite();
    hdrroot->editVolume().setStatic  ();

    hdrroot->setCore(OSG::Group::create());

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

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

    root->setCore(gr1);

    
    hdrroot->addChild(root);

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

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

    // Load the file

    OSG::NodeUnrecPtr file = NULL;
    
//.........这里部分代码省略.........