C++ Camera::setProjectionType方法代码示例

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);
	}
}

 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
    CinematicManager::createOrthoCamera(Ogre::Real windowW, Ogre::Real windowH, const Ogre::Vector3 &initialPos,
    const Ogre::Quaternion &initialOrient, Control* control)
{
    Ogre::Camera* cam = _scnMgr->createCamera(ORTHO_CAM_NAME + Ogre::StringConverter::toString(_camCurId));
    cam->setProjectionType(Ogre::PT_ORTHOGRAPHIC);
    cam->setOrthoWindow(100, 50);
    cam->setNearClipDistance(1);
    cam->setPosition(0.0f, 0.0f,  0.0f);
    //cam->setFarClipDistance(100.0f);
    cam->setFOVy(Ogre::Radian(Ogre::Math::PI / 2.0f));
    Ogre::SceneNode* defaultNode = _scnMgr->createSceneNode();
    defaultNode->setPosition(initialPos);
    defaultNode->setOrientation(initialOrient);
    defaultNode->attachObject(cam);
    _camsVec.push_back(new ZCameraInfo(_camsVec.size(), "ORTHOGRAPHIC", cam->getName(), control, cam));
}

    /**
     * This is the most basic "triangle" example, done as a Scene in Ogre.
     */
    Ogre::SceneManager* createTriangleScene() {
        Ogre::SceneManager* scene = mRoot->createSceneManager(Ogre::ST_GENERIC);

        // Configure camera (~ view & projection transforms, i.e. gluLookAt + glOrtho)
        Ogre::Camera* camera = scene->createCamera("MainCamera"); // We can use an arbitrary name here
        camera->setProjectionType(Ogre::PT_ORTHOGRAPHIC);
        camera->setOrthoWindow(2, 2);              // ~ glOrtho(-1, 1, -1, 1)
        camera->setAspectRatio((float) mWindow->getWidth() / mWindow->getHeight());
        camera->setNearClipDistance(0.5);
        camera->setPosition(Ogre::Vector3(0,0,1)); // Move camera away from (0, 0, 0), otherwise the triangle at z=0 will be clipped

        // Now add some geometry to the scene
        Ogre::ManualObject* triangle = scene->createManualObject("Triangle");

        // ~ glBegin, glVertex, glEnd
        // "BaseWhiteNoLighting" is a built-in name for a basic non-lit material
        triangle->begin("BaseWhiteNoLighting", Ogre::RenderOperation::OT_TRIANGLE_LIST);
        triangle->position(0, 0.5, 0);            // ~ glVertex.
                                                  // Contrary to OpenGL we *first* must create the vertex
        triangle->colour(Ogre::ColourValue::Red); // .. and then provide its attributes such as color (~ glColor)
        triangle->position(-0.5, -0.5, 0);
        triangle->colour(Ogre::ColourValue::Green);
        triangle->position(0.5, -0.5, 0);
        triangle->colour(Ogre::ColourValue::Blue);
        triangle->end();

        // Add the created triangle object to the scene graph
        // For this we create a SceneNode object, which will combine information about
        // the object's geometry with its modeling transform
        // (see frameRenderingQueued to understand how to rotate the triangle by changing this transform)
        scene->getRootSceneNode()->createChildSceneNode("Triangle")->attachObject(triangle);

        // Exercise 1: Create new object, add vertices, attach the object to a new SceneNode
        // ...

        return scene;
    }

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);

	//TODO: make a flag or attribute indicating whether or not the camera should be attached to any parent node.
	//if(pParent)
	//    pParent->attachObject(pCamera);

	// Set the field-of-view
	//! @todo Is this always in degrees?
	//pCamera->setFOVy(Ogre::Degree(fov));

	// Set the aspect ratio
	//pCamera->setAspectRatio(aspectRatio);

	// 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");
		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));

	// Process normal (?)
	pElement = XMLNode->first_node("normal");
	if (pElement)
		;//!< @todo What to do with this element?

	// Process lookTarget (?)
	pElement = XMLNode->first_node("lookTarget");
	if (pElement)
		;//!< @todo Implement the camera look target

	// Process trackTarget (?)
	pElement = XMLNode->first_node("trackTarget");
	if (pElement)
		;//!< @todo Implement the camera track target

	// Process userDataReference (?)
	pElement = XMLNode->first_node("userDataReference");
	if (pElement)
		;//!< @todo Implement the camera user data reference

	// 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);
	}
}

//.........这里部分代码省略.........
        lightCopy->setSpecularColour(light->getSpecularColour());
        lightCopy->setAttenuation(light->getAttenuationRange(), light->getAttenuationConstant(), light->getAttenuationLinear(), light->getAttenuationQuadric());
        lightCopy->setPosition(light->getPosition());
        lightCopy->setDirection(light->getDirection());
        if (lightCopy->getType() == Ogre::Light::LT_SPOTLIGHT)
            lightCopy->setSpotlightRange(light->getSpotlightInnerAngle(), light->getSpotlightOuterAngle(), light->getSpotlightFalloff());
        lightCopy->setPowerScale(light->getPowerScale());
        lightCopy->setCastShadows(light->getCastShadows());

        // create a new container for the cloned light
        OgreContainer *lightCopyContainer = new OgreContainer(lightCopy);
        lightCopy->setUserAny(Ogre::Any(lightCopyContainer));
        if (!light->getUserAny().isEmpty()) {
            OgreContainer *lightContainer = Ogre::any_cast<OgreContainer *>(light->getUserAny());
            if (lightContainer)
                QObject::connect(lightContainer, SIGNAL(sceneNodeUpdated()), lightCopyContainer, SLOT(updateLight()));
        }
        result = dynamic_cast<Ogre::MovableObject *>(lightCopy);
    } else if (typeName == "Camera") {
        // clone camera
        Ogre::Camera *camera = dynamic_cast<Ogre::Camera *>(movableObject);
        Ogre::Camera *cameraCopy = sceneManager->createCamera(name.toStdString());
        //cameraCopy->setCustomParameter(0, camera->getCustomParameter(0));
        cameraCopy->setAspectRatio(camera->getAspectRatio());
        cameraCopy->setAutoAspectRatio(camera->getAutoAspectRatio());
        //cameraCopy->setAutoTracking(...);
        cameraCopy->setCastShadows(camera->getCastsShadows());
        //cameraCopy->setCullingFrustum(camera->getCullingFrustum());
        //cameraCopy->setCustomParameter(...);
        //cameraCopy->setCustomProjectionMatrix(..);
        //cameraCopy->setCustomViewMatrix(..);
        //cameraCopy->setDebugDisplayEnabled(...);
        //cameraCopy->setDefaultQueryFlags(...);
        //cameraCopy->setDefaultVisibilityFlags(...);
        cameraCopy->setDirection(camera->getDirection());
        //cameraCopy->setFixedYawAxis(...);
        cameraCopy->setFocalLength(camera->getFocalLength());
        cameraCopy->setFOVy(camera->getFOVy());

        //Ogre::Real left;
        //Ogre::Real right;
        //Ogre::Real top;
        //Ogre::Real bottom;
        //camera->getFrustumExtents(left, right, top, bottom);
        //cameraCopy->setFrustumExtents(left, right, top, bottom);
        //cameraCopy->setFrustumOffset(camera->getFrustumOffset());
        //cameraCopy->setListener(camera->getListener());
        cameraCopy->setLodBias(camera->getLodBias());
        //cameraCopy->setLodCamera(camera->getLodCamera());
        cameraCopy->setNearClipDistance(camera->getNearClipDistance());
        cameraCopy->setFarClipDistance(camera->getFarClipDistance());
        cameraCopy->setOrientation(camera->getOrientation());
        //cameraCopy->setOrthoWindow(...);
        //cameraCopy->setOrthoWindowHeight(...);
        //cameraCopy->setOrthoWindowWidth(...);
        cameraCopy->setPolygonMode(camera->getPolygonMode());
        cameraCopy->setPolygonModeOverrideable(camera->getPolygonModeOverrideable());
        cameraCopy->setPosition(camera->getPosition());
        cameraCopy->setProjectionType(camera->getProjectionType());
        cameraCopy->setQueryFlags(camera->getQueryFlags());
        cameraCopy->setRenderingDistance(camera->getRenderingDistance());
        cameraCopy->setRenderQueueGroup(camera->getRenderQueueGroup());
        //cameraCopy->setRenderSystemData(camera->getRenderSystemData());
        cameraCopy->setUseIdentityProjection(camera->getUseIdentityProjection());
        cameraCopy->setUseIdentityView(camera->getUseIdentityView());
        //cameraCopy->setUserAny(camera->getUserAny());
        cameraCopy->setUseRenderingDistance(camera->getUseRenderingDistance());
        //cameraCopy->setUserObject(camera->getUserObject());
        cameraCopy->setVisibilityFlags(camera->getVisibilityFlags());
        cameraCopy->setVisible(camera->getVisible());
        //cameraCopy->setWindow(...);

        if (!movableObject->getUserAny().isEmpty()) {
            CameraInfo *sourceCameraInfo = Ogre::any_cast<CameraInfo *>(movableObject->getUserAny());
            if (sourceCameraInfo) {
                CameraInfo *targetCameraInfo = new CameraInfo();
                targetCameraInfo->width = sourceCameraInfo->width;
                targetCameraInfo->height = sourceCameraInfo->height;
                dynamic_cast<Ogre::MovableObject *>(cameraCopy)->setUserAny(Ogre::Any(targetCameraInfo));
            }
        }

        //// Setup connections for instances
        //SceneNode *targetSceneNode = new SceneNode(cameraCopy);
        //((Ogre::MovableObject *)cameraCopy)->setUserAny(Ogre::Any(targetSceneNode));
        //if (!((Ogre::MovableObject *)camera)->getUserAny().isEmpty()) {
        //    SceneNode *sourceSceneNode = Ogre::any_cast<SceneNode *>(((Ogre::MovableObject *)camera)->getUserAny());
        //    if (sourceSceneNode) {
        //        QObject::connect(sourceSceneNode, SIGNAL(sceneNodeUpdated()), targetSceneNode, SLOT(updateSceneNode()));
        //    }
        //}

        result = dynamic_cast<Ogre::MovableObject *>(cameraCopy);
    }

    if (!result)
        Log::error(QString("Could not clone movable object \"%1\" of type \"%2\".").arg(movableObject->getName().c_str()).arg(typeName.c_str()), "OgreTools::cloneMovableObject");

    return result;
}

int initOgreAR(aruco::CameraParameters camParams, unsigned char* buffer, std::string resourcePath)
{
	/// INIT OGRE FUNCTIONS
#ifdef _WIN32
  	root = new Ogre::Root(resourcePath + "plugins_win.cfg", resourcePath + "ogre_win.cfg");
#elif __x86_64__ || __ppc64__
	root = new Ogre::Root(resourcePath + "plugins_x64.cfg", resourcePath + "ogre.cfg");
#else
	root = new Ogre::Root(resourcePath + "plugins.cfg", resourcePath + "ogre.cfg");
#endif
  	if (!root->showConfigDialog()) return -1;
	Ogre::SceneManager* smgr = root->createSceneManager(Ogre::ST_GENERIC);


	/// CREATE WINDOW, CAMERA AND VIEWPORT
    Ogre::RenderWindow* window = root->initialise(true);
	Ogre::Camera *camera;
	Ogre::SceneNode* cameraNode;
	camera = smgr->createCamera("camera");
	camera->setNearClipDistance(0.01f);
	camera->setFarClipDistance(10.0f);
	camera->setProjectionType(Ogre::PT_ORTHOGRAPHIC);
	camera->setPosition(0, 0, 0);
	camera->lookAt(0, 0, 1);
	double pMatrix[16];
	camParams.OgreGetProjectionMatrix(camParams.CamSize,camParams.CamSize, pMatrix, 0.05,10, false);
	Ogre::Matrix4 PM(pMatrix[0], pMatrix[1], pMatrix[2] , pMatrix[3],
			pMatrix[4], pMatrix[5], pMatrix[6] , pMatrix[7],
			pMatrix[8], pMatrix[9], pMatrix[10], pMatrix[11],
			pMatrix[12], pMatrix[13], pMatrix[14], pMatrix[15]);
	camera->setCustomProjectionMatrix(true, PM);
	camera->setCustomViewMatrix(true, Ogre::Matrix4::IDENTITY);
	window->addViewport(camera);
	cameraNode = smgr->getRootSceneNode()->createChildSceneNode("cameraNode");
	cameraNode->attachObject(camera);


	/// CREATE BACKGROUND FROM CAMERA IMAGE
	int width = camParams.CamSize.width;
	int height = camParams.CamSize.height;
	// create background camera image
	mPixelBox = Ogre::PixelBox(width, height, 1, Ogre::PF_R8G8B8, buffer);
	// Create Texture
	mTexture = Ogre::TextureManager::getSingleton().createManual("CameraTexture",Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
		      Ogre::TEX_TYPE_2D,width,height,0,Ogre::PF_R8G8B8,Ogre::TU_DYNAMIC_WRITE_ONLY_DISCARDABLE);

	//Create Camera Material
	Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().create("CameraMaterial", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
	Ogre::Technique *technique = material->createTechnique();
	technique->createPass();
	material->getTechnique(0)->getPass(0)->setLightingEnabled(false);
	material->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
	material->getTechnique(0)->getPass(0)->createTextureUnitState("CameraTexture");

	Ogre::Rectangle2D* rect = new Ogre::Rectangle2D(true);
	rect->setCorners(-1.0, 1.0, 1.0, -1.0);
	rect->setMaterial("CameraMaterial");

	// Render the background before everything else
	rect->setRenderQueueGroup(Ogre::RENDER_QUEUE_BACKGROUND);

	// Hacky, but we need to set the bounding box to something big, use infinite AAB to always stay visible
	Ogre::AxisAlignedBox aabInf;
	aabInf.setInfinite();
	rect->setBoundingBox(aabInf);

	// Attach background to the scene
	Ogre::SceneNode* node = smgr->getRootSceneNode()->createChildSceneNode("Background");
	node->attachObject(rect);


	/// CREATE SIMPLE OGRE SCENE
	// add sinbad.mesh
	Ogre::ResourceGroupManager::getSingleton().addResourceLocation(resourcePath + "Sinbad.zip", "Zip", "Popular");
 	Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
	for(int i=0; i<MAX_MARKERS; i++) {
	  Ogre::String entityName = "Marker_" + Ogre::StringConverter::toString(i);
	  Ogre::Entity* ogreEntity = smgr->createEntity(entityName, "Sinbad.mesh");
	  Ogre::Real offset = ogreEntity->getBoundingBox().getHalfSize().y;
	  ogreNode[i] = smgr->getRootSceneNode()->createChildSceneNode();
	  // add entity to a child node to correct position (this way, entity axis is on feet of sinbad)
	  Ogre::SceneNode *ogreNodeChild = ogreNode[i]->createChildSceneNode();
	  ogreNodeChild->attachObject(ogreEntity);
	  // Sinbad is placed along Y axis, we need to rotate to put it along Z axis so it stands up over the marker
	  // first rotate along X axis, then add offset in Z dir so it is over the marker and not in the middle of it
	  ogreNodeChild->rotate(Ogre::Vector3(1,0,0), Ogre::Radian(Ogre::Degree(90)));
	  ogreNodeChild->translate(0,0,offset,Ogre::Node::TS_PARENT);
	  // mesh is too big, rescale!
	  const float scale = 0.006675f;
	  ogreNode[i]->setScale(scale, scale, scale);

	    // Init animation
	  ogreEntity->getSkeleton()->setBlendMode(Ogre::ANIMBLEND_CUMULATIVE);
	  if(i==0)
	  {
        baseAnim[i] = ogreEntity->getAnimationState("HandsClosed");
        topAnim[i] = ogreEntity->getAnimationState("HandsRelaxed");
	  }
	  else if(i==1)
	  {
//.........这里部分代码省略.........