C++ Camera::setFarClipDistance方法代码示例

int Hundir::start() {
    _root = new Ogre::Root();

    if(!_root->restoreConfig()) {
        _root->showConfigDialog();
        _root->saveConfig();
    }
    Ogre::RenderWindow* window = _root->initialise(true,"Hundir Example");
    _sceneManager = _root->createSceneManager(Ogre::ST_GENERIC);
    Ogre::Camera* cam = _sceneManager->createCamera("MainCamera");
    cam->setPosition(Ogre::Vector3(-10,30,35));
    cam->lookAt(Ogre::Vector3(0,0,0));
    cam->setNearClipDistance(5);
    cam->setFarClipDistance(10000);

    Ogre::Viewport* viewport = window->addViewport(cam);
    viewport->setBackgroundColour(Ogre::ColourValue(0.0,0.0,0.0));
    double width = viewport->getActualWidth();
    double height = viewport->getActualHeight();
    cam->setAspectRatio(width / height);

    loadResources();
    createScene();

    _framelistener = new MyFrameListener(window, cam, _sceneManager);
    _root->addFrameListener(_framelistener);
    _root->startRendering();
    return 0;
}

//-------------------------------------------------------------------------------------------
void MagickWidget::loadMesh(Ogre::MeshPtr pMesh)
{
    QString directory(OgitorsRoot::getSingletonPtr()->GetProjectOptions()->ProjectDir.c_str());
    if(directory.isEmpty())
        directory = "./";

    QDir(directory).mkpath("entitycache");

    Ogre::TexturePtr texture = Ogre::TextureManager::getSingleton().createManual( "MeshMagickTex", 
                   Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, Ogre::TEX_TYPE_2D, 
                   512, 512, 0, Ogre::PF_R8G8B8A8 , Ogre::TU_RENDERTARGET );

    Ogre::RenderTexture *rttTex = texture->getBuffer()->getRenderTarget();
    Ogre::SceneManager *mSceneMgr = Ogre::Root::getSingletonPtr()->createSceneManager("OctreeSceneManager", "MeshMagickTexMgr");

    Ogre::Light *dirl = mSceneMgr->createLight("DisplayLight");
    dirl->setDirection(-1,-1,-1);
    dirl->setDiffuseColour(1,1,1);
    dirl->setType(Ogre::Light::LT_DIRECTIONAL);

    Ogre::Camera* RTTCam = mSceneMgr->createCamera("MeshMagickCam");
    RTTCam->setNearClipDistance(0.01F);
    RTTCam->setFarClipDistance(0);
    RTTCam->setAspectRatio(1);
    RTTCam->setFOVy(Ogre::Degree(90));
    RTTCam->setPosition(0,0,1);
    RTTCam->lookAt(0,0,0);

    Ogre::Viewport *v = rttTex->addViewport( RTTCam );
    v->setClearEveryFrame( true );
    v->setBackgroundColour(Ogre::ColourValue(0,0,0));

    Ogre::Entity *mEntity;

    mEntity = mSceneMgr->createEntity("scbDisplay", pMesh->getName());
    mSceneMgr->getRootSceneNode()->attachObject(mEntity);

    Ogre::Vector3 vSize = mEntity->getBoundingBox().getHalfSize();
    Ogre::Vector3 vCenter = mEntity->getBoundingBox().getCenter(); 
    
    vSize += Ogre::Vector3(vSize.z, vSize.z, vSize.z);

    float maxsize = std::max(std::max(vSize.x,vSize.y),vSize.z);
    
    vSize = Ogre::Vector3(0, 0, maxsize * 1.15f) + vCenter;
    
    RTTCam->setPosition(vSize.x,vSize.y,vSize.z);
    RTTCam->lookAt(vCenter.x,vCenter.y,vCenter.z);

    rttTex->update();
    Ogre::String imagefile = OgitorsUtils::QualifyPath(directory.toStdString() + "/entitycache/meshmagick.png");
    rttTex->writeContentsToFile(imagefile);

    mEntity->detachFromParent();
    mSceneMgr->destroyEntity(mEntity);
    rttTex->removeAllViewports();
    Ogre::Root::getSingletonPtr()->destroySceneManager(mSceneMgr);
    mDisplayWidget->setImage(QString(imagefile.c_str()));
}

void GraphicsImpl::createCamera()
{
	camera = sceneMgr->createCamera("MainCamera");
	// Position it at 500 in Z direction
	camera->setPosition(Ogre::Vector3(0, 50, 100));
	// Look back along -Z
	camera->lookAt(Ogre::Vector3(0, -10, 0));
	camera->setNearClipDistance(5);
	camera->setFarClipDistance(0);
}

void BaseApp::createCamera()
{
	Ogre::Camera* cam = mSceneMgr->createCamera("PlayerCam");
	cam->setPosition(0,0,0);
	cam->lookAt(0,0,0);
	//cam->setAutoAspectRatio(true);
	cam->setNearClipDistance(1);
	cam->setFarClipDistance(10000);
	mCameraMan = new OgreBites::SdkCameraMan(cam);
	mCameraMan->setTopSpeed(1000);
}

 void ReliefApp::GenerateRelief()
 {
     //Get depth data
     Ogre::TexturePtr depthTex = Ogre::TextureManager::getSingleton().createManual(  
         "DepthTexture",      // name   
         Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,  
         Ogre::TEX_TYPE_2D,   // type   
         512,  // width   
         512,  // height   
         0,                   // number of mipmaps   
         //Ogre::PF_B8G8R8A8,   // pixel format
         Ogre::PF_FLOAT32_R,
         Ogre::TU_RENDERTARGET
         ); 
     Ogre::RenderTarget* pTarget = depthTex->getBuffer()->getRenderTarget();
     Ogre::Camera* pOrthCam = MagicCore::RenderSystem::GetSingleton()->GetMainCamera();
     pOrthCam->setProjectionType(Ogre::PT_ORTHOGRAPHIC);
     pOrthCam->setOrthoWindow(3, 3);
     pOrthCam->setPosition(0, 0, 3);
     pOrthCam->lookAt(0, 0, 0);
     pOrthCam->setAspectRatio(1.0);
     pOrthCam->setNearClipDistance(0.5);
     pOrthCam->setFarClipDistance(5);
     Ogre::Viewport* pViewport = pTarget->addViewport(pOrthCam);
     pViewport->setDimensions(0, 0, 1, 1);
     MagicCore::RenderSystem::GetSingleton()->RenderLightMesh3D("RenderMesh", "Depth", mpLightMesh);
     MagicCore::RenderSystem::GetSingleton()->Update();
     Ogre::Image img;
     depthTex->convertToImage(img);
     std::vector<double> heightField(512 * 512);
     for(int x = 0; x < 512; x++)  
     {  
         for(int y = 0; y < 512; y++)  
         {
             heightField.at(x * 512 + y) = (img.getColourAt(x, 511 - y, 0))[1];
         }
     }
     Ogre::TextureManager::getSingleton().remove("DepthTexture");
     //
     MagicDGP::LightMesh3D* pReliefMesh = MagicDGP::ReliefGeneration::PlaneReliefFromHeightField(heightField, 511, 511);
     //MagicDGP::LightMesh3D* pReliefMesh = MagicDGP::ReliefGeneration::CylinderReliefFromHeightField(heightField, 511, 511);
     if (pReliefMesh != NULL)
     {
         delete mpLightMesh;
         mpLightMesh = pReliefMesh;
         mpLightMesh->UnifyPosition(2);
         mpLightMesh->UpdateNormal();
     }
     MagicCore::RenderSystem::GetSingleton()->SetupCameraDefaultParameter();
     MagicCore::RenderSystem::GetSingleton()->RenderLightMesh3D("RenderMesh", "MyCookTorrance", mpLightMesh);
 }

void DotSceneLoader::processCamera(rapidxml::xml_node<>* XMLNode,
		Ogre::SceneNode *pParent) {
	// Process attributes
	Ogre::String name = getAttrib(XMLNode, "name");
	Ogre::String id = getAttrib(XMLNode, "id");
// Ogre::Real fov = getAttribReal(XMLNode, "fov", 45);
// Ogre::Real aspectRatio = getAttribReal(XMLNode, "aspectRatio", 1.3333);
	Ogre::String projectionType = getAttrib(XMLNode, "projectionType",
			"perspective");

	// Create the camera
	Ogre::Camera *pCamera = mSceneMgr->createCamera(name);

	// Set the projection type
	if (projectionType == "perspective")
		pCamera->setProjectionType(Ogre::PT_PERSPECTIVE);
	else if (projectionType == "orthographic")
		pCamera->setProjectionType(Ogre::PT_ORTHOGRAPHIC);

	rapidxml::xml_node<>* pElement;

	// Process clipping (?)
	pElement = XMLNode->first_node("clipping");
	if (pElement) {
		Ogre::Real nearDist = getAttribReal(pElement, "near");
		if (nearDist > 0)
		  pCamera->setNearClipDistance(nearDist);

		Ogre::Real farDist = getAttribReal(pElement, "far");
		pCamera->setFarClipDistance(farDist);
	}

	// Process position (?)
	pElement = XMLNode->first_node("position");
	if (pElement)
		pCamera->setPosition(parseVector3(pElement));

	// Process rotation (?)
	pElement = XMLNode->first_node("rotation");
	if (pElement)
		pCamera->setOrientation(parseQuaternion(pElement));

	// construct a scenenode is no parent
	if (!pParent) {
		Ogre::SceneNode* pNode = mAttachNode->createChildSceneNode(name);
		pNode->setPosition(pCamera->getPosition());
		pNode->setOrientation(pCamera->getOrientation());
		pNode->scale(1, 1, 1);
	}
}

static void setupScene()
{
	LOGI("------->setupScene()");

	Ogre::ConfigFile cf;
	cf.load(openAPKFile("resources.cfg"));

	Ogre::ConfigFile::SectionIterator seci = cf.getSectionIterator();
	while (seci.hasMoreElements())
	{
		Ogre::String sec, type, arch;
		sec = seci.peekNextKey();
		Ogre::ConfigFile::SettingsMultiMap* settings = seci.getNext();
		Ogre::ConfigFile::SettingsMultiMap::iterator i;

		for (i = settings->begin(); i != settings->end(); i++)
		{
			type = i->first;
			arch = i->second;
			Ogre::ResourceGroupManager::getSingleton().addResourceLocation(arch, type, sec);
		}
	}

	Ogre::ResourceGroupManager::getSingletonPtr()->initialiseResourceGroup(
			Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);

	gSceneMgr = gRoot->createSceneManager(Ogre::ST_GENERIC);
	Ogre::Camera* camera = gSceneMgr->createCamera("MyCam");

	Ogre::Entity* pEntity = gSceneMgr->createEntity("SinbadInstance", "Sinbad.mesh");
	Ogre::SceneNode* pNode = gSceneMgr->getRootSceneNode()->createChildSceneNode();
	pNode->attachObject(pEntity);

	Ogre::Light* pDirLight = gSceneMgr->createLight();
	pDirLight->setDirection(Ogre::Vector3(0, -1, 0));
	pDirLight->setType(Ogre::Light::LT_DIRECTIONAL);
	pNode->attachObject(pDirLight);

	camera->setNearClipDistance(1.0f);
	camera->setFarClipDistance(100000.0f);
	camera->setPosition(0, 0, 20.0f);
	camera->lookAt(0, 0, 0);
	camera->setAutoAspectRatio(true);

	Ogre::Viewport* vp = gRenderWnd->addViewport(camera);
	vp->setBackgroundColour(Ogre::ColourValue(1, 0, 0));

	LOGI("<-------setupScene()");
}

//We're not sure whether return a reference to a vector is such a great idea. 
void
    CinematicManager::createPerspectiveCamera(Ogre::Real windowW, Ogre::Real windowH, const Ogre::Vector3 &initialPos,
    const Ogre::Quaternion &initialOrient, Control* control)
{
    Ogre::Camera* cam = _scnMgr->createCamera(PERSP_CAM_NAME + Ogre::StringConverter::toString(_camCurId));
    cam->setNearClipDistance(1.0f);
    cam->setFarClipDistance(400.0f);
    cam->setPosition(0.0f, 0.0f, 0.0f);
    cam->setAspectRatio(windowW / windowH);
    Ogre::SceneNode* defaultNode = _scnMgr->createSceneNode();
    defaultNode->setPosition(initialPos); //It's in local space.
    defaultNode->setOrientation(initialOrient);
    defaultNode->attachObject(cam);
    _camsVec.push_back(new ZCameraInfo(_camsVec.size(), "PERSPECTIVE", cam->getName(), control, cam));
}

void
	Geometry::setupView() {
		Ogre::Camera * mCamera = OgreTrip::getCamera();
		// put camera at world center, so that it's difficult to reach the edge
		Vector3 worldCenter(
			(ENDLESS_PAGE_MAX_X + ENDLESS_PAGE_MIN_X) / 2 * TERRAIN_WORLD_SIZE,
			0,
			-(ENDLESS_PAGE_MAX_Y + ENDLESS_PAGE_MIN_Y) / 2 * TERRAIN_WORLD_SIZE
			);
		//mCamera->setPosition(mTerrainPos + worldCenter);
		//mCamera->lookAt(mTerrainPos);
		mCamera->setNearClipDistance(0.1);
		mCamera->setFarClipDistance(8000);
		/*
		if (OgreTrip::getRoot()->getRenderSystem()->getCapabilities()->hasCapability(RSC_INFINITE_FAR_PLANE)) {
			mCamera->setFarClipDistance(0);   // enable infinite far clip distance if we can
		}*/
}

int MyApp::start() {
  _root = new Ogre::Root();
  
  if(!_root->restoreConfig()) {
    _root->showConfigDialog();
    _root->saveConfig();
  }

  _pTrackManager = new TrackManager;
  _pSoundFXManager = new SoundFXManager;
  
  Ogre::RenderWindow* window = _root->initialise(true,"MyApp Example");
  _sceneManager = _root->createSceneManager(Ogre::ST_GENERIC);
  
  Ogre::Camera* cam = _sceneManager->createCamera("MainCamera");
  cam->setPosition(Ogre::Vector3(7,10.5,8));
  cam->lookAt(Ogre::Vector3(0,3.5,0));
  cam->setNearClipDistance(5);
  cam->setFarClipDistance(10000);
  
  Ogre::Viewport* viewport = window->addViewport(cam);
  viewport->setBackgroundColour(Ogre::ColourValue(0.0,0.0,0.0));
  double width = viewport->getActualWidth();
  double height = viewport->getActualHeight();
  cam->setAspectRatio(width / height);
  
  loadResources();
  createScene();
  createOverlay();

  Ogre::SceneNode *node = _sceneManager->getSceneNode("Neptuno");
  
  _framelistener = new MyFrameListener(this, window, cam, node, _overlayManager, 
				       _sceneManager);
  _root->addFrameListener(_framelistener);
  
  // Reproducción del track principal...
  this->_mainTrack->play();

  _root->startRendering();
  return 0;
}

//----------------------------------------------------------------------------------------
ImageConverter::ImageConverter(const size_t& width/*=128*/, const size_t& height/*=128*/)
{
    mWidth = width;
    mHeight = height;

    mResourceManager = Ogre::ResourceGroupManager::getSingletonPtr();
    mResourceManager->createResourceGroup("QTImageConverter");
    mResourceManager->initialiseResourceGroup("QTImageConverter");
    
    mSceneMgrPtr = Ogre::Root::getSingletonPtr()->createSceneManager("OctreeSceneManager", "QTImageConverterSceneManager");
    mSceneMgrPtr->setAmbientLight(Ogre::ColourValue(1, 1, 1));

    Ogre::TexturePtr rendertexture = Ogre::TextureManager::getSingleton().createManual("RenderTex", 
                   "QTImageConverter", Ogre::TEX_TYPE_2D, 
                   mWidth, mHeight, 1, Ogre::PF_R8G8B8, Ogre::TU_RENDERTARGET);

    mRttTex = rendertexture->getBuffer()->getRenderTarget();

    // create our plane to set a texture to
    Ogre::Plane plane(Ogre::Vector3::UNIT_Z, 0);
    Ogre::MeshManager::getSingleton().createPlane("terrain", "QTImageConverter",
        plane, 100, 100, 1, 1, true, 1, 1, 1, Ogre::Vector3::UNIT_Y);

    // attach the plane to the scene manager and rotate it so the camera can see it
    mEntityTerrain = mSceneMgrPtr->createEntity("terrainEntity", "terrain");
    Ogre::SceneNode* node = mSceneMgrPtr->getRootSceneNode()->createChildSceneNode();
    node->attachObject(mEntityTerrain);
    mEntityTerrain->setCastShadows(false);    
    
    Ogre::Camera* RTTCam = mSceneMgrPtr->createCamera("QTImageConverterCam");
    RTTCam->setNearClipDistance(0.01F);
    RTTCam->setFarClipDistance(0);
    RTTCam->setAspectRatio(1);
    RTTCam->setFOVy(Ogre::Degree(90));
    RTTCam->setPosition(0, 0, 50);
    RTTCam->lookAt(0, 0, 0);
    
    Ogre::Viewport *v = mRttTex->addViewport(RTTCam);
    v->setBackgroundColour(Ogre::ColourValue(1, 1, 1));
    v->setClearEveryFrame(true);
}

GameCamera* CameraFactory::make(const rapidjson::Value& jsonobj){

  // Create the sphere
  Ogre::Camera* camera = game_manager->GetSceneManager()->createCamera(jsonobj["name"].GetString());

  SpaceObject*spaceobj=game_manager->getSpaceObject(jsonobj["attached_object"].GetString());

  // Set the node's position
  Eigen::Vector3f positionVec=spaceobj->position.cast<float>();
  camera->setPosition(Ogre::Vector3( static_cast<Ogre::Real*>(positionVec.data()) ));

  // Set the node's orientation
  Eigen::Quaterniond attitude=spaceobj->attitude;
  camera->setOrientation(Ogre::Quaternion(attitude.w(),attitude.x(),attitude.y(),attitude.z() ));

  camera->setNearClipDistance(jsonobj["near_clip"].GetDouble());
  camera->setFarClipDistance(jsonobj["far_clip"].GetDouble());

  GameCamera* gamecamera=new GameCamera(camera,spaceobj);

  return gamecamera;
}

void
OgreCameraSystem::update(int) {
    for (EntityId entityId : m_impl->m_entities.removedEntities()) {
        Ogre::Camera* camera = m_impl->m_cameras[entityId];
        if (camera) {
            Ogre::SceneNode* sceneNode = camera->getParentSceneNode();
            sceneNode->detachObject(camera);
            m_impl->m_sceneManager->destroyCamera(camera);
        }
        m_impl->m_cameras.erase(entityId);
    }
    for (auto& value : m_impl->m_entities.addedEntities()) {
        EntityId entityId = value.first;
        OgreSceneNodeComponent* sceneNodeComponent = std::get<0>(value.second);
        OgreCameraComponent* cameraComponent = std::get<1>(value.second);
        Ogre::Camera* camera = m_impl->m_sceneManager->createCamera(
            cameraComponent->name()
        );
        camera->setAutoAspectRatio(true);
        cameraComponent->m_camera = camera;
        m_impl->m_cameras[entityId] = camera;
        sceneNodeComponent->m_sceneNode->attachObject(camera);
    }
    m_impl->m_entities.clearChanges();
    for (auto& value : m_impl->m_entities) {
        OgreCameraComponent* cameraComponent = std::get<1>(value.second);
        auto& properties = cameraComponent->m_properties;
        if (properties.hasChanges()) {
            Ogre::Camera* camera = cameraComponent->m_camera;
            // Update camera
            camera->setPolygonMode(properties.polygonMode);
            camera->setFOVy(properties.fovY);
            camera->setNearClipDistance(properties.nearClipDistance);
            camera->setFarClipDistance(properties.farClipDistance);
            // Untouch
            properties.untouch();
        }
    }
}

    void Channel::frameDraw(const eq::uint128_t &frame_id)
    {
        // Setup OpenGL state (view frustum etc.)
        eq::Channel::frameDraw(frame_id);

        // Get data
        const Config *config = static_cast<Config *>(getConfig());
        const Node *node = static_cast<Node *>(getNode());
        const InitData &init_data = node->getInitData();
        const Pipe *pipe = static_cast<Pipe *>(getPipe());
        const FrameData &frame_data = pipe->getFrameData();
        Window *window = static_cast<Window *>(getWindow());        

        Ogre::Camera *cam = pipe->_ogre->getCamera();

        // Set the projection matrix
        const eq::Frustumf & frustum = getFrustum();

        cam->setCustomProjectionMatrix(true, toOgreMatrix(frustum.compute_matrix()));

        const eq::Matrix4f eqViewMatrix = getHeadTransform();
        // Adjust the view matrix according to equalizer's view matrix
        Ogre::Matrix4 ogreViewMatrix = toOgreMatrix(eqViewMatrix);
        cam->setCustomViewMatrix(true, ogreViewMatrix);
        cam->setNearClipDistance(frustum.near_plane());
        cam->setFarClipDistance(frustum.far_plane());

        // Set the viewport
        eq::PixelViewport winPvp = window->getPixelViewport();
        eq::PixelViewport pvp	 = getPixelViewport();
        window->setViewport((float)pvp.x/(float)winPvp.w,
                          1.0f - (float)(pvp.h + pvp.y)/(float)winPvp.h,
                          (float)pvp.w/(float)winPvp.w,
                          (float)pvp.h/(float)winPvp.h);

        // Render
        window->render();
    }

void OgreApplication::InitViewport(void){

    try {

        /* Retrieve scene manager and root scene node */
        Ogre::SceneManager* scene_manager = ogre_root_->createSceneManager(Ogre::ST_GENERIC, "MySceneManager");
        Ogre::SceneNode* root_scene_node = scene_manager->getRootSceneNode();

        /* Create camera object */
        Ogre::Camera* camera = scene_manager->createCamera("MyCamera");
        Ogre::SceneNode* camera_scene_node = root_scene_node->createChildSceneNode("MyCameraNode");
        camera_scene_node->attachObject(camera);

		camera->setNearClipDistance(camera_near_clip_distance_g);
        camera->setFarClipDistance(camera_far_clip_distance_g); 

		camera->setPosition(camera_position_g);
		camera->lookAt(camera_look_at_g);
		camera->setFixedYawAxis(true, camera_up_g);

        /* Create viewport */
        Ogre::Viewport *viewport = ogre_window_->addViewport(camera, viewport_z_order_g, viewport_left_g, viewport_top_g, viewport_width_g, viewport_height_g);

        viewport->setAutoUpdated(true);
        viewport->setBackgroundColour(viewport_background_color_g);

		/* Set aspect ratio */
		float ratio = float(viewport->getActualWidth()) / float(viewport->getActualHeight());
        camera->setAspectRatio(ratio);
    }
    catch (Ogre::Exception &e){
        throw(OgreAppException(std::string("Ogre::Exception: ") + std::string(e.what())));
    }
    catch(std::exception &e){
        throw(OgreAppException(std::string("std::Exception: ") + std::string(e.what())));
    }
}