C++ GeometryUnrecPtr::setMaterial方法代码示例

//.........这里部分代码省略.........

    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 main(int argc, char **argv)
{
    printf("Usage: testCGShader <filename.vp> <filename.fp>\n");

    if( argc < 3 )
        return 0;
    
    // 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(0.1, 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->readVertexProgram(argv[1]);
    shl->readFragmentProgram(argv[2]);

    cmat->addChunk(shl);


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

    // create torus
    OSG::GeometryUnrecPtr geo = OSG::makeTorusGeo(.8, 1.8, 128, 128);
    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 = OSG::SimpleSceneManager::create();

    // 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);
        light->setBeacon   (_mgr->getCamera()->getBeacon());
    endEditCP(light);
    beginEditCP(_scene);
        _scene->setCore(light);
    endEditCP(_scene);
    */

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

    // GLUT main loop
    glutMainLoop();

    return 0;
}

//.........这里部分代码省略.........
    OSG::TextureEnvChunkUnrecPtr tex_earth_night_env = 
        OSG::TextureEnvChunk::create();

    tex_earth_night->setImage(earth_night_map_img);
    tex_earth_night->setMinFilter(GL_LINEAR_MIPMAP_LINEAR);
    tex_earth_night->setMagFilter(GL_LINEAR);
    tex_earth_night->setWrapS(GL_REPEAT);
    tex_earth_night->setWrapT(GL_REPEAT);

    tex_earth_night_env->setEnvMode(GL_MODULATE);
    
    // Read the image for the normal texture
    OSG::ImageUnrecPtr earth_clouds_map_img = OSG::Image::create();
    if(!earth_clouds_map_img->read("EarthClouds.jpg"))
    {
        fprintf(stderr, "Couldn't read texture 'EarthClouds.jpg'\n");
        return 1;
    }

    OSG::TextureObjChunkUnrecPtr tex_earth_clouds     = 
        OSG::TextureObjChunk::create();
    OSG::TextureEnvChunkUnrecPtr tex_earth_clouds_env = 
        OSG::TextureEnvChunk::create();

    tex_earth_clouds->setImage(earth_clouds_map_img);
    tex_earth_clouds->setMinFilter(GL_LINEAR_MIPMAP_LINEAR);
    tex_earth_clouds->setMagFilter(GL_LINEAR);
    tex_earth_clouds->setWrapS(GL_REPEAT);
    tex_earth_clouds->setWrapT(GL_REPEAT);

    tex_earth_clouds_env->setEnvMode(GL_MODULATE);


    _shl = OSG::ShaderProgramChunk::create();

    _shl_vp = OSG::ShaderProgram::create();
    _shl_fp = OSG::ShaderProgram::create();
    
    if(!_shl_vp->readProgram("Earth.vp"))
        fprintf(stderr, "Couldn't read vertex program 'Earth.vp'\n");
    if(!_shl_fp->readProgram("Earth.fp"))
        fprintf(stderr, "Couldn't read fragment program 'Earth.fp'\n");

    _shl_vp->setShaderType(GL_VERTEX_SHADER);
    _shl_fp->setShaderType(GL_FRAGMENT_SHADER);

    _shl->addVertexShader  (_shl_vp);
    _shl->addFragmentShader(_shl_fp);

    _shl_fp->addUniformVariable("EarthDay", 0);
    _shl_fp->addUniformVariable("EarthNight", 1);
    _shl_fp->addUniformVariable("EarthCloudGloss", 2);

    _shl_vp->addUniformVariable("season", 0.0f);
    _shl_vp->addUniformVariable("cos_time_0_2PI", -0.406652f);
    _shl_vp->addUniformVariable("sin_time_0_2PI", -0.913583f);
//    _shl->setUniformParameter("foo", -0.913583f);

    
    cmat->addChunk(_shl);
    cmat->addChunk(tex_earth);
    cmat->addChunk(tex_earth_env);
    cmat->addChunk(tex_earth_night);
    cmat->addChunk(tex_earth_night_env);
    cmat->addChunk(tex_earth_clouds);
    cmat->addChunk(tex_earth_clouds_env);


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

    OSG::GeometryUnrecPtr geo = OSG::makeLatLongSphereGeo (100, 100, 1.0);

    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 = OSG::SimpleSceneManager::create();

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

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

    return 0;
}

OSG::NodeTransitPtr setupAnim(void)
{
    OSG::NodeTransitPtr returnValue = OSG::Node::create();

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

    static const OSG::Real32 aOffsets[6][3] = 
    {
        { -5.5,  0.0,  0.0 },
        {  5.5,  0.0,  0.0 },
        {  0.0, -5.5,  0.0 },
        {  0.0,  5.5,  0.0 },
        {  0.0,  0.0, -5.5 },
        {  0.0,  0.0,  5.5 }
    };

    static const OSG::Real32 aDiffuse[6][3] =
    {
        { 1.f, 0.f, 0.f },
        { 0.f, 1.f, 0.f },
        { 0.f, 0.f, 1.f },
        { 1.f, 1.f, 0.f },
        { 1.f, 0.f, 1.f },
        { 0.f, 1.f, 1.f }
    };

    for(OSG::UInt32 i = 0; i < 6; ++i)
    {
        OSG::NodeUnrecPtr pTN                = OSG::Node::create();
        
        pAnimTrs[i] = OSG::ComponentTransform::create();
        
        OSG::GeometryUnrecPtr pGeo     = OSG::makeBoxGeo(1.f, 1.f, 1.f, 
                                                         2,   2,   2);
        OSG::NodeUnrecPtr     pGeoNode = OSG::Node::create();
        
        pGeoNode->setCore(pGeo);

        OSG::SimpleMaterialUnrecPtr pMat = OSG::SimpleMaterial::create();
        
        pMat->setDiffuse(OSG::Color3f(aDiffuse[i][0],
                                      aDiffuse[i][1],
                                      aDiffuse[i][2]));
        pMat->setAmbient(OSG::Color3f(aDiffuse[i][0],
                                      aDiffuse[i][1],
                                      aDiffuse[i][2]));

        pGeo->setMaterial(pMat);

        pAnimTrs[i]->editTranslation().setValues(aOffsets[i][0],
                                                 aOffsets[i][1],
                                                 aOffsets[i][2]);
        
        pTN->setCore (pAnimTrs[i]);
        pTN->addChild(pGeoNode   );
        
        returnValue->addChild(pTN);
    }


    return returnValue;
}

// 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.........

TEST_FIXTURE(FileFixture, TextureChunkIO)
{
    OSG::NodeUnrecPtr          n   = OSG::Node::create();
    OSG::GeometryUnrecPtr      geo = OSG::makeBoxGeo(2.0, 2.0, 2.0, 1, 1, 1);
    OSG::ChunkMaterialUnrecPtr mat = OSG::ChunkMaterial::create();
    
    OSG::ImageUnrecPtr img = OSG::Image::create();
    img->set(OSG::Image::OSG_RGBA_PF, 2, 2);
    
    img->editData()[0 * 2 * 4 + 0 * 4 + 0] = 255;
    img->editData()[0 * 2 * 4 + 0 * 4 + 1] =   0;
    img->editData()[0 * 2 * 4 + 0 * 4 + 2] =   0;
    img->editData()[0 * 2 * 4 + 0 * 4 + 3] = 255;
    
    img->editData()[0 * 2 * 4 + 1 * 4 + 0] = 255;
    img->editData()[0 * 2 * 4 + 1 * 4 + 1] = 255;
    img->editData()[0 * 2 * 4 + 1 * 4 + 2] =   0;
    img->editData()[0 * 2 * 4 + 1 * 4 + 3] = 255;
    
    img->editData()[1 * 2 * 4 + 0 * 4 + 0] =   0;
    img->editData()[1 * 2 * 4 + 0 * 4 + 1] =   0;
    img->editData()[1 * 2 * 4 + 0 * 4 + 2] = 255;
    img->editData()[1 * 2 * 4 + 0 * 4 + 3] = 255;
    
    img->editData()[1 * 2 * 4 + 1 * 4 + 0] =   0;
    img->editData()[1 * 2 * 4 + 1 * 4 + 1] = 255;
    img->editData()[1 * 2 * 4 + 1 * 4 + 2] = 255;
    img->editData()[1 * 2 * 4 + 1 * 4 + 3] = 255;
    
    OSG::TextureChunkUnrecPtr tex = OSG::TextureChunk::create();
    tex->setImage(img);
    
    mat->addChunk(tex);
    geo->setMaterial(mat);
    
    n->setCore(geo);
    
    OSG::SceneFileHandler::the()->write(n, test_file.native_file_string().c_str());
    
    OSG::NodeUnrecPtr n2 =
        OSG::SceneFileHandler::the()->read(test_file.native_file_string().c_str());
        
    CHECK(n2 != NULL);
    
    CHECK(n2->getCore() != NULL);
    OSG::GeometryUnrecPtr      geo2 =
        dynamic_cast<OSG::Geometry *>(n2->getCore());
    CHECK(geo2 != NULL);
    
    CHECK(geo2->getMaterial() != NULL);
    OSG::ChunkMaterialUnrecPtr mat2 =
        dynamic_cast<OSG::ChunkMaterial *>(geo2->getMaterial());
    CHECK(mat2 != NULL);    
    
    CHECK(mat2->getChunk(0) != NULL);
    const OSG::TextureChunk *tex2 =
        dynamic_cast<const OSG::TextureChunk *>(mat2->getChunk(0));
    const OSG::TextureObjChunk *texObj =
        dynamic_cast<const OSG::TextureObjChunk *>(mat2->getChunk(0));
    const OSG::TextureEnvChunk *texEnv =
        dynamic_cast<const OSG::TextureEnvChunk *>(mat2->getChunk(1));
    CHECK(tex2   == NULL);    
    CHECK(texObj != NULL);
    CHECK(texEnv != NULL);
    
    CHECK(texObj->getImage() != NULL);
    OSG::Image *img2 = texObj->getImage();
    CHECK(img2 != NULL);
    
    CHECK_EQUAL(255, img2->getData()[0 * 2 * 4 + 0 * 4 + 0]);
    CHECK_EQUAL(  0, img2->getData()[0 * 2 * 4 + 0 * 4 + 1]);
    CHECK_EQUAL(  0, img2->getData()[0 * 2 * 4 + 0 * 4 + 2]);
    CHECK_EQUAL(255, img2->getData()[0 * 2 * 4 + 0 * 4 + 3]);
    
    CHECK_EQUAL(255, img2->getData()[0 * 2 * 4 + 1 * 4 + 0]);
    CHECK_EQUAL(255, img2->getData()[0 * 2 * 4 + 1 * 4 + 1]);
    CHECK_EQUAL(  0, img2->getData()[0 * 2 * 4 + 1 * 4 + 2]);
    CHECK_EQUAL(255, img2->getData()[0 * 2 * 4 + 1 * 4 + 3]);
    
    CHECK_EQUAL(  0, img2->getData()[1 * 2 * 4 + 0 * 4 + 0]);
    CHECK_EQUAL(  0, img2->getData()[1 * 2 * 4 + 0 * 4 + 1]);
    CHECK_EQUAL(255, img2->getData()[1 * 2 * 4 + 0 * 4 + 2]);
    CHECK_EQUAL(255, img2->getData()[1 * 2 * 4 + 0 * 4 + 3]);
    
    CHECK_EQUAL(  0, img2->getData()[1 * 2 * 4 + 1 * 4 + 0]);
    CHECK_EQUAL(255, img2->getData()[1 * 2 * 4 + 1 * 4 + 1]);
    CHECK_EQUAL(255, img2->getData()[1 * 2 * 4 + 1 * 4 + 2]);
    CHECK_EQUAL(255, img2->getData()[1 * 2 * 4 + 1 * 4 + 3]);
}

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

    shl->setProgramParameter(GL_GEOMETRY_INPUT_TYPE_EXT, 
                             GL_TRIANGLES);
    shl->setProgramParameter(GL_GEOMETRY_OUTPUT_TYPE_EXT, 
                             GL_TRIANGLE_STRIP);
    shl->setProgramParameter(GL_GEOMETRY_VERTICES_OUT_EXT, 6);

    shl->setVertexProgram(_vertex_shader);
    shl->setFragmentProgram(_fragment_shader);
    shl->setGeometryProgram(_geometry_shader);

    cmat->addChunk(shl);

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

    // create torus
    OSG::GeometryUnrecPtr geo = OSG::makeTorusGeo(.8, 1.8, 128, 128);

    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 = OSG::SimpleSceneManager::create();

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

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

    return 0;
}

// Initialize GLUT & OpenSG and set up the scene
int doMain(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::ShaderProgramChunkUnrecPtr shl = OSG::ShaderProgramChunk::create();

    OSG::ShaderProgramUnrecPtr shl_vp = 
        OSG::ShaderProgram::createVertexShader();
    
    shl_vp->setProgram(_vp_program);
    shl_vp->setProgramAttribute(OSG::ShaderConstants::TexCoordsIndex, "TexCoord0");
    shl_vp->setProgramAttribute(OSG::ShaderConstants::NormalsIndex,   "Normal"  );
    shl_vp->setProgramAttribute(OSG::ShaderConstants::PositionsIndex, "Position");

    shl->addShader(shl_vp);

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

    shl_fp->setProgram(_fp_program);

    shl->addShader(shl_fp);


    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
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    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);

void initPlaneSetup(void)
{
    // beacon for camera and light
    OSG::GroupNodeRefPtr  beacon = OSG::GroupNodeRefPtr::create();

    // transformation
    OSG::TransformNodeRefPtr cam_transPlane = 
        OSG::TransformNodeRefPtr::create();
    cam_transPlane.node()->addChild(beacon);

    // light
    OSG::DirectionalLightNodeRefPtr dl = 
        OSG::DirectionalLightNodeRefPtr::create();

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

    // planeRoot
    planeRoot = OSG::GroupNodeRefPtr::create();

    planeRoot.node()->addChild(cam_transPlane);
    planeRoot.node()->addChild(animRoot);
    planeRoot.node()->addChild(dl);

    // Create plane to project the staged render
    OSG::NodeUnrecPtr plane_node = OSG::makePlane(10, 10, 5, 5);

    // Setup the shared texture and texture environment
    // - Create an empty image so texture can allocate size and memory
    OSG::ImageUnrecPtr pImg = OSG::Image::create();
    pImg->set(OSG::Image::OSG_RGB_PF, 512, 512);

    tx1o->setImage    (pImg      );
    tx1o->setMinFilter(GL_LINEAR );
    tx1o->setMagFilter(GL_LINEAR );
    tx1o->setWrapS    (GL_REPEAT );
    tx1o->setWrapT    (GL_REPEAT );

    tx1e->setEnvMode (GL_REPLACE);

#ifdef USE_DEPTH_TEXTURE
    OSG::ImageUnrecPtr dImg = OSG::Image::create();
    dImg->set(Image::OSG_L_PF, 512, 512);

    txDepth->setImage (dImg);
    txDepth->setMinFilter(GL_NEAREST );
    txDepth->setMagFilter(GL_LINEAR );
    txDepth->setWrapS    (GL_CLAMP_TO_EDGE );
    txDepth->setWrapT    (GL_CLAMP_TO_EDGE );
    txDepth->setExternalFormat(GL_DEPTH_COMPONENT);
    txDepth->setInternalFormat(GL_DEPTH_COMPONENT32);
#endif


    // Material for plane
    // - Create a material that will reference the texture and render
    //     it on the plane
    OSG::SimpleMaterialUnrecPtr mat = OSG::SimpleMaterial::create();

    mat->setDiffuse(OSG::Color3f(1,1,1));
    mat->setLit    (false              );
#ifdef USE_DEPTH_TEXTURE
    mat->addChunk  (txDepth            );
#else
    mat->addChunk  (tx1o               );
#endif
    mat->addChunk  (tx1e               );

    OSG::GeometryUnrecPtr pGeo = 
        dynamic_cast<OSG::Geometry *>(plane_node->getCore());
    pGeo->setMaterial(mat);

    // Finish connecting graph
    OSG::TransformNodeRefPtr scene_trans = OSG::TransformNodeRefPtr::create();
    scene_trans.node()->addChild(plane_node );

    dl.node()->addChild(scene_trans);

}