C++ Camera::setCustomProjectionMatrix方法代码示例

void wxOgreRenderWindow::setCameraAspectRatio()
{
  Ogre::Camera* camera = viewport_->getCamera();
  if ( camera )
  {
    int width;
    int height;
    GetSize( &width, &height );

    camera->setAspectRatio( Ogre::Real( width ) / Ogre::Real( height ) );

    if ( camera->getProjectionType() == Ogre::PT_ORTHOGRAPHIC )
    {
      Ogre::Matrix4 proj;
      buildScaledOrthoMatrix( proj, -width / ortho_scale_ / 2, width / ortho_scale_ / 2, -height / ortho_scale_ / 2, height / ortho_scale_ / 2,
                              camera->getNearClipDistance(), camera->getFarClipDistance() );
      camera->setCustomProjectionMatrix(true, proj);
    }
  }
}

    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();
    }

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.........