Ejemplo n.º 1
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 OgreRTTexture::begin()
	{
		Ogre::RenderTexture* rtt = mTexture->getBuffer()->getRenderTarget();

		if (mViewport == nullptr)
		{
			mViewport = rtt->addViewport(nullptr);
			mViewport->setClearEveryFrame(false);
			mViewport->setOverlaysEnabled(false);
		}

		Ogre::RenderSystem* system = Ogre::Root::getSingleton().getRenderSystem();
		system->_setProjectionMatrix(mProjectMatrix);
		mSaveViewport = system->_getViewport();
		system->_setViewport(mViewport);
		system->clearFrameBuffer(Ogre::FBT_COLOUR, Ogre::ColourValue::ZERO);
	}
Ejemplo n.º 3
0
// ----------------------------------------------------------------
// sets up the ogre viewports and associates the appropriate 
// camera & render texture to each
// ----------------------------------------------------------------
bool OgreOpenVR::initOgreViewports()
{
    Ogre::RenderTexture* renderTex = m_ogreRenderTexture->getBuffer()->getRenderTarget();

    // configure the two viewports to each render to half of the render targer
    // each half corresponds to one eye, and we submit both in one big texture to OpenVR
    m_viewports[0] = renderTex->addViewport(m_cameras[0], 0, 0.0f, 0.0f, 0.5f, 1.0f);
    m_viewports[1] = renderTex->addViewport(m_cameras[1], 1, 0.5f, 0.0f, 0.5f, 1.0f);

    renderTex->setAutoUpdated(true);

    m_viewports[0]->setBackgroundColour(Ogre::ColourValue(97 / 255.0f, 200 / 255.0f, 200 / 255.0f));
    m_viewports[0]->setOverlaysEnabled(true);
    m_viewports[0]->setAutoUpdated(true);
    m_viewports[1]->setBackgroundColour(Ogre::ColourValue(97 / 255.0f, 200 / 255.0f, 200 / 255.0f));
    m_viewports[1]->setOverlaysEnabled(true);
    m_viewports[1]->setAutoUpdated(true);

    Ogre::LogManager::getSingleton().logMessage(Ogre::LML_NORMAL, "OgreOpenVR: Setup RTT viewports for ogre OpenVR textures");

    return true;
}
Ejemplo n.º 4
0
	void GUIManager::miniMap(){
		Ogre::TexturePtr tex = mRoot->getTextureManager()->createManual(
			"RTT",
			Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
			Ogre::TEX_TYPE_2D,
			512,
			512,
			0,
			Ogre::PF_R8G8B8,
			Ogre::TU_RENDERTARGET);

		Ogre::RenderTexture *rtex = tex->getBuffer()->getRenderTarget();
		cam = mSceneMgr->createCamera("RearCam");
		//Vector3 fool = Ogre::Vector3(1550,0,1250);
		cam->setPosition(1250, 300, 1000);
		//cam->lookAt(0,0,0);
		
		Ogre::Viewport *v = rtex->addViewport(cam);
		v->setOverlaysEnabled(false);
		v->setClearEveryFrame(true);
		v->setBackgroundColour(Ogre::ColourValue::Black);
		CEGUI::Texture &guiTex = mRenderer->createTexture(tex);
		CEGUI::Imageset &imageSet =
		CEGUI::ImagesetManager::getSingleton().create("RTTImageset", guiTex);
	imageSet.defineImage("RTTImage",
						 CEGUI::Point(0.0f, 0.0f),
						 CEGUI::Size(guiTex.getSize().d_width,
									 guiTex.getSize().d_height),
						 CEGUI::Point(0.0f, 0.0f));

		mini_map = CEGUI::WindowManager::getSingleton().createWindow("TaharezLook/StaticImage", "RTTWindow");
		mini_map->setSize(CEGUI::UVector2(CEGUI::UDim(0.3f, 0),CEGUI::UDim(0.2f, 0)));
		mini_map->setPosition(CEGUI::UVector2(CEGUI::UDim(0.69f, 0),CEGUI::UDim(0.0f, 0)));
		mini_map->setProperty("Image", CEGUI::PropertyHelper::imageToString(&imageSet.getImage("RTTImage")));
		sheet->addChildWindow(mini_map);
		mini_map->setVisible(false);
	
	}
Ejemplo n.º 5
0
/*!
  Get the result of the rendering loop.

  \param I : The image on which to copy the result of the rendering loop.
  \param cMo : The desired camera pose.
*/
void vpAROgre::getRenderingOutput(vpImage<vpRGBa> &I, const vpHomogeneousMatrix &cMo)
{
    updateCameraParameters(cMo);
    Ogre::TexturePtr dynTexPtr = Ogre::TextureManager::getSingleton().getByName("rtf");
//#if ( OGRE_VERSION >= (1 << 16 | 9 << 8 | 0) )
//        .dynamicCast<Ogre::Texture>();
//#else
//        ;
//#endif
    Ogre::RenderTexture* RTarget = dynTexPtr->getBuffer()->getRenderTarget();
    mWindow->update();
    RTarget->update();
    if(I.getHeight() != mWindow->getHeight() || I.getWidth() != mWindow->getWidth()){
       I.resize(mWindow->getHeight(), mWindow->getWidth());
    }
    Ogre::HardwarePixelBufferSharedPtr mPixelBuffer = dynTexPtr->getBuffer();
    mPixelBuffer->lock(Ogre::HardwareBuffer::HBL_DISCARD);
    const Ogre::PixelBox& pixelBox = mPixelBuffer->getCurrentLock();
    dynTexPtr->getBuffer()->blitToMemory(pixelBox);
    Ogre::uint8* pDest = static_cast<Ogre::uint8*>(pixelBox.data);
#if 1 // if texture in BGRa format
    for(unsigned int i=0; i<I.getHeight(); i++){
      for(unsigned int j=0; j<I.getWidth(); j++){
	// Color Image
	I[i][j].B = *pDest++; // Blue component
	I[i][j].G = *pDest++; // Green component
	I[i][j].R = *pDest++; // Red component
	I[i][j].A = *pDest++; // Alpha component
      }
    }
#else // if texture in RGBa format which is the format of the input image
    memcpy(I.bitmap, pDest, I.getHeight()*I.getWidth()*sizeof(vpRGBa));
#endif

    // Unlock the pixel buffer
    mPixelBuffer->unlock();

}
Ejemplo n.º 6
0
void Oculus::setCameras()
{
	Ogre::Camera* camLeft = m_cameras[0] ;
	Ogre::Camera* camRight = m_cameras[1] ; 
	Ogre::RenderTexture* renderTexLeft = mLeftEyeRenderTexture->getBuffer()->getRenderTarget();
	std::cout << "[Rift] Adding viewport to left texture" << std::endl;
	m_viewports[0] = renderTexLeft->addViewport(m_cameras[0]);
	renderTexLeft->getViewport(0)->setOverlaysEnabled(true);

	std::cout << "[Rift] Adding viewport to right texture" << std::endl;
	Ogre::RenderTexture* renderTexRight = mRightEyeRenderTexture->getBuffer()->getRenderTarget();
	m_viewports[1] = renderTexRight->addViewport(m_cameras[1]);

	renderTexRight->getViewport(0)->setOverlaysEnabled(true);

	m_viewports[0]->setBackgroundColour(g_defaultViewportColour);
	m_viewports[1]->setBackgroundColour(g_defaultViewportColour);
	



	ovrFovPort fovLeft = mHMD->DefaultEyeFov[ovrEye_Left];
	ovrFovPort fovRight = mHMD->DefaultEyeFov[ovrEye_Right];

	float combinedTanHalfFovHorizontal = std::max( fovLeft.LeftTan, fovLeft.RightTan );
	float combinedTanHalfFovVertical = std::max( fovLeft.UpTan, fovLeft.DownTan );

	float aspectRatio = combinedTanHalfFovHorizontal / combinedTanHalfFovVertical;

	m_cameras[0]->setAspectRatio( aspectRatio );
	m_cameras[1]->setAspectRatio( aspectRatio );

	ovrMatrix4f projL = ovrMatrix4f_Projection ( fovLeft, g_defaultNearClip, g_defaultFarClip, true );
	ovrMatrix4f projR = ovrMatrix4f_Projection ( fovRight, g_defaultNearClip, g_defaultFarClip, true );

	m_cameras[0]->setCustomProjectionMatrix( true,
			Ogre::Matrix4( 
				projL.M[0][0], projL.M[0][1], projL.M[0][2], projL.M[0][3],
				projL.M[1][0], projL.M[1][1], projL.M[1][2], projL.M[1][3],
				projL.M[2][0], projL.M[2][1], projL.M[2][2], projL.M[2][3],
				projL.M[3][0], projL.M[3][1], projL.M[3][2], projL.M[3][3] ) );
	m_cameras[1]->setCustomProjectionMatrix( true,
			Ogre::Matrix4( 
				projR.M[0][0], projR.M[0][1], projR.M[0][2], projR.M[0][3],
				projR.M[1][0], projR.M[1][1], projR.M[1][2], projR.M[1][3],
				projR.M[2][0], projR.M[2][1], projR.M[2][2], projR.M[2][3],
				projR.M[3][0], projR.M[3][1], projR.M[3][2], projR.M[3][3] ) );
}
CRosRttTexture::CRosRttTexture(unsigned width, unsigned height, Ogre::Camera * camera, bool isDepth /*= false*/ )
: m_materialName("MyRttMaterial")
, width_(width)
, height_(height)
, frame_("/map")
, m_bIsDepth( isDepth )
{
  assert( height > 0 && width > 0 );

  {
    // Set encoding
    current_image_.encoding = ROS_IMAGE_FORMAT;

    // Set image size
    current_image_.width = width;
    current_image_.height = height;

    // Set image row length in bytes (row length * 3 bytes for a color)
    current_image_.step = width * BPP;

#if OGRE_ENDIAN == ENDIAN_BIG
    current_image_.is_bigendian = true;
#else
        current_image_.is_bigendian = false;
#endif

    // Resize data
    current_image_.data.resize( width_ * height_ * BPP);

  }

  Ogre::TextureManager & lTextureManager( Ogre::TextureManager::getSingleton() );
  Ogre::String textureName("RVIZ_CamCast_Texture");
  bool lGammaCorrection( false );
  unsigned int lAntiAliasing( 0 );
  unsigned int lNumMipmaps( 0 );

  if( isDepth )
  {
	  texture_ = lTextureManager.createManual(textureName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
		  Ogre::TEX_TYPE_2D, width, height, lNumMipmaps,
		  OGRE_DEPTH_TEXTURE_FORMAT, Ogre::TU_RENDERTARGET, 0, lGammaCorrection, lAntiAliasing);
  }
  else
  {
	  texture_ = lTextureManager.createManual(textureName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
	  		  Ogre::TEX_TYPE_2D, width, height, lNumMipmaps,
	  		  OGRE_TEXTURE_FORMAT, Ogre::TU_RENDERTARGET, 0, lGammaCorrection, lAntiAliasing);
  }

  // Create render target
  Ogre::RenderTexture* lRenderTarget = NULL;

  Ogre::HardwarePixelBufferSharedPtr lRttBuffer = texture_->getBuffer();
  lRenderTarget = lRttBuffer->getRenderTarget();
  lRenderTarget->setAutoUpdated(true);

  // Create and attach viewport

  Ogre::Viewport* lRttViewport1 = lRenderTarget->addViewport(camera, 50, 0.00f, 0.00f, 1.0f, 1.0f);
  lRttViewport1->setAutoUpdated(true);
  Ogre::ColourValue lBgColor1(0.0,0.0,0.0,1.0);
  lRttViewport1->setBackgroundColour(lBgColor1);

  // create a material using this texture.

  //Get a reference on the material manager, which is a singleton.
  Ogre::MaterialManager& lMaterialManager = Ogre::MaterialManager::getSingleton();
  Ogre::MaterialPtr lMaterial = lMaterialManager.create(m_materialName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
  Ogre::Technique * lTechnique = lMaterial->getTechnique(0);
  Ogre::Pass* lPass = lTechnique->getPass(0);

  if( isDepth )
  {
	  lPass->setLightingEnabled(false);
  }

  Ogre::TextureUnitState* lTextureUnit = lPass->createTextureUnitState();
  lTextureUnit->setTextureName(textureName);

  lTextureUnit->setNumMipmaps(0);
  lTextureUnit->setTextureFiltering(Ogre::TFO_BILINEAR);

  update();
}
Ejemplo n.º 8
0
void RenderedTexture::renderTextures()
{
    //Set up RTT texture
    Ogre::TexturePtr renderTexture;
    if (renderTexture.isNull()) {
        renderTexture = Ogre::TextureManager::getSingleton().createManual(
            getUniqueID("RenderedEntityMaterial"), "EntityRenderer",
            Ogre::TEX_TYPE_2D, textureSize, textureSize, 0,
            Ogre::PF_A8R8G8B8, Ogre::TU_RENDERTARGET, 0);
    }
    renderTexture->setNumMipmaps(0);

    //Set up render target
    Ogre::RenderTexture* renderTarget = renderTexture->getBuffer()->getRenderTarget(); 
    renderTarget->setAutoUpdated(false);

    //Set up camera
    Ogre::SceneNode* camNode = sceneMgr->getSceneNode("EntityRenderer::cameraNode");
    Ogre::Camera* renderCamera = sceneMgr->createCamera(getUniqueID("EntityRendererCam"));
    camNode->attachObject(renderCamera);
    renderCamera->setLodBias(1000.0f);

    Ogre::Viewport* renderViewport = renderTarget->addViewport(renderCamera);
    renderViewport->setOverlaysEnabled(false);
    renderViewport->setClearEveryFrame(true);
    renderViewport->setShadowsEnabled(false);
    renderViewport->setBackgroundColour(Ogre::ColourValue(0.0f, 0.0f, 0.0f, 0.0f));

    //Set up scene node
    Ogre::SceneNode* node = sceneMgr->getSceneNode("EntityRenderer::renderNode");

    Ogre::SceneNode* oldSceneNode = entity->getParentSceneNode();
    if (oldSceneNode)
        oldSceneNode->detachObject(entity);
    node->attachObject(entity);
    node->setPosition(-entityCenter);

    //Set up camera FOV
    const Ogre::Real objDist = entityRadius * 100;
    const Ogre::Real nearDist = objDist - (entityRadius + 1); 
    const Ogre::Real farDist = objDist + (entityRadius + 1);

    renderCamera->setAspectRatio(1.0f);
    renderCamera->setFOVy(Ogre::Math::ATan(2.0 * entityRadius / objDist));
    renderCamera->setNearClipDistance(nearDist);
    renderCamera->setFarClipDistance(farDist);

    //Disable mipmapping (without this, masked textures look bad)
    Ogre::MaterialManager* mm = Ogre::MaterialManager::getSingletonPtr();
    Ogre::FilterOptions oldMinFilter = mm->getDefaultTextureFiltering(Ogre::FT_MIN);
    Ogre::FilterOptions oldMagFilter = mm->getDefaultTextureFiltering(Ogre::FT_MAG);
    Ogre::FilterOptions oldMipFilter = mm->getDefaultTextureFiltering(Ogre::FT_MIP);
    mm->setDefaultTextureFiltering(Ogre::FO_POINT, Ogre::FO_LINEAR,Ogre:: FO_NONE);

    //Disable fog
    Ogre::FogMode oldFogMode = sceneMgr->getFogMode();
    Ogre::ColourValue oldFogColor = sceneMgr->getFogColour();
    Ogre::Real oldFogDensity = sceneMgr->getFogDensity();
    Ogre::Real oldFogStart = sceneMgr->getFogStart();
    Ogre::Real oldFogEnd = sceneMgr->getFogEnd();
    sceneMgr->setFog(Ogre::FOG_NONE);

    // Get current status of the queue mode
    Ogre::SceneManager::SpecialCaseRenderQueueMode OldSpecialCaseRenderQueueMode =
        sceneMgr->getSpecialCaseRenderQueueMode();
    //Only render the entity
    sceneMgr->setSpecialCaseRenderQueueMode(Ogre::SceneManager::SCRQM_INCLUDE); 
    sceneMgr->addSpecialCaseRenderQueue(renderQueueGroup);

    Ogre::uint8 oldRenderQueueGroup = entity->getRenderQueueGroup();
    entity->setRenderQueueGroup(renderQueueGroup);
    bool oldVisible = entity->getVisible();
    entity->setVisible(true);
    float oldMaxDistance = entity->getRenderingDistance();
    entity->setRenderingDistance(0);

    //Calculate the filename hash used to uniquely identity this render
    std::string strKey = entityKey;
    char key[32] = {0};
    Ogre::uint32 i = 0;
    for (std::string::const_iterator it = entityKey.begin(); it != entityKey.end(); ++it) {
        key[i] ^= *it;
        i = (i+1) % sizeof(key);
    }
    for (i = 0; i < sizeof(key); ++i)
        key[i] = (key[i] % 26) + 'A';

    Ogre::ResourceGroupManager::getSingleton().addResourceLocation(
        GetUserDir().string(), "FileSystem", "BinFolder");
    std::string fileNamePNG =
        "Rendered." + std::string(key, sizeof(key)) + '.' +
        Ogre::StringConverter::toString(textureSize) + ".png";

    //Attempt to load the pre-render file if allowed
    bool needsRegen = false;
    if (!needsRegen) {
        try{
            texture = Ogre::TextureManager::getSingleton().load(
                fileNamePNG, "BinFolder", Ogre::TEX_TYPE_2D, 0);
        } catch (...) {
            needsRegen = true;
        }
    }

    if (needsRegen) {
        //If this has not been pre-rendered, do so now

        //Position camera
        camNode->setPosition(0, 0, 0);
        // TODO camNode->setOrientation(Quaternion(yaw, Vector3::UNIT_Y) * Quaternion(-pitch, Vector3::UNIT_X));
        camNode->translate(Ogre::Vector3(0, 0, objDist), Ogre::Node::TS_LOCAL);
						
        renderTarget->update();

        //Save RTT to file
        renderTarget->writeContentsToFile((GetUserDir() / fileNamePNG).string());

        //Load the render into the appropriate texture view
        texture = Ogre::TextureManager::getSingleton().load(fileNamePNG, "BinFolder", Ogre::TEX_TYPE_2D, 0);

        ggTexture = ClientUI::GetTexture(GetUserDir() / fileNamePNG);
    }

    entity->setVisible(oldVisible);
    entity->setRenderQueueGroup(oldRenderQueueGroup);
    entity->setRenderingDistance(oldMaxDistance);
    sceneMgr->removeSpecialCaseRenderQueue(renderQueueGroup);
    // Restore original state
    sceneMgr->setSpecialCaseRenderQueueMode(OldSpecialCaseRenderQueueMode); 

    //Re-enable mipmapping
    mm->setDefaultTextureFiltering(oldMinFilter, oldMagFilter, oldMipFilter);

    //Re-enable fog
    sceneMgr->setFog(oldFogMode, oldFogColor, oldFogDensity, oldFogStart, oldFogEnd);

    //Delete camera
    renderTarget->removeViewport(0);
    renderCamera->getSceneManager()->destroyCamera(renderCamera);

    //Delete scene node
    node->detachAllObjects();
    if (oldSceneNode)
        oldSceneNode->attachObject(entity);

    //Delete RTT texture
    assert(!renderTexture.isNull());
    std::string texName2(renderTexture->getName());

    renderTexture.setNull();
    if (Ogre::TextureManager::getSingletonPtr())
        Ogre::TextureManager::getSingleton().remove(texName2);
}
Ejemplo n.º 9
0
	int EnvironmentCoreApplication::startLoop(std::function<int()> _func) {
		int l_run = 0;
		
		isRunning = true;

		double l_systemTimeIncriment = 0.0;

		int l_frame = 0;
		Ogre::TexturePtr rtt_texture = Ogre::TextureManager::getSingleton().createManual("RttTex", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, Ogre::TEX_TYPE_2D, m_pRenderWindow->getWidth(), m_pRenderWindow->getHeight(), 0, Ogre::PF_R8G8B8, Ogre::TU_RENDERTARGET);
		Ogre::RenderTexture* renderTexture = rtt_texture->getBuffer()->getRenderTarget();

		renderTexture->addViewport(m_pCamera);
		renderTexture->getViewport(0)->setClearEveryFrame(true);
		renderTexture->getViewport(0)->setBackgroundColour(Ogre::ColourValue::Black);
		renderTexture->getViewport(0)->setOverlaysEnabled(false);

		std::chrono::high_resolution_clock l_time;
		auto l_start = l_time.now();
		auto l_last = l_start;

		while (l_run == 0) {

			try {
				m_pChSystem->DoFrameDynamics((l_systemTimeIncriment / 2.0));
			}
			catch (std::exception e) {

			}
			try {
				m_pChSystem->DoFrameDynamics((l_systemTimeIncriment / 2.0));
			}
			catch (std::exception e) {

			}

			m_pInputManager->update();

			if (m_pInputManager->WindowClose) {
				l_run++;
				break;
			}

			m_pGUIManager->update();

			l_run = _func();

			m_pScene->update();

			m_pViewport->update();

			m_pRenderWindow->update(false);
			m_pRenderWindow->swapBuffers();

			m_pRoot->renderOneFrame();

			m_pCamera->setAspectRatio((((float)(m_pViewport->getActualWidth())) / ((float)(m_pViewport->getActualHeight()))));


			if (!isRealTime) {
				l_systemTimeIncriment += timestep_max;
				timestep = timestep_max;
			}
			else {
				l_systemTimeIncriment = ((double)(std::chrono::duration_cast<std::chrono::milliseconds>(l_time.now() - l_start).count())) / 1000.0; //converts standard library time difference to a double for Chrono

				l_systemTimeIncriment = l_systemTimeIncriment > timestep_max ? l_systemTimeIncriment+=timestep_max : l_systemTimeIncriment;
				l_systemTimeIncriment = l_systemTimeIncriment < timestep_min ? l_systemTimeIncriment+=timestep_min : l_systemTimeIncriment;

				timestep = ((double)(std::chrono::duration_cast<std::chrono::milliseconds>(l_time.now() - l_last).count())) / 1000.0;
				l_last = l_time.now();
			}

			if (WriteToFile) {
				std::string name = "out/frame" + std::to_string(l_frame) + "time" + std::to_string(l_systemTimeIncriment) + ".png";
				renderTexture->update();
				renderTexture->writeContentsToFile(name);
				l_frame++;
			}

			Ogre::WindowEventUtilities::messagePump();

			
		}
		isRunning = false;

		return l_run;
	}
Ejemplo n.º 10
0
CFakeObjectEntityManager::FakeObjectMap::iterator CFakeObjectEntityManager::_GetFakeNode(LPCTSTR szNodeName, tEntityNode* pNode, LPCTSTR szCameraName, int nTexWidth, int nTexHeight, LPCTSTR szBackgroundName)
{
	//缺省摄像机的位置
	static const float s_fHeight	= 0.8f;
	static const float s_fDistance = 3.2f;
	static const float s_fPitch = 0.21f;

	FakeObjectMap::iterator it = m_mapObject.find(szNodeName);
	if(it != m_mapObject.end()) return it;

	//不存在,创建
	FakeObject newNode;
	newNode.strName = szNodeName;

	//--------------------------------------------------
	//创建RenderTarget
	Ogre::TexturePtr ptrTex =
		Ogre::TextureManager::getSingleton().createManual(
		Ogre::String(szNodeName) + "_RenderTexture",
		Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
		Ogre::TEX_TYPE_2D,
		nTexWidth, nTexHeight, 1, 0,
		Ogre::PF_R8G8B8A8,
		Ogre::TU_RENDERTARGET,
		0);

	//ptrTex->load();
	newNode.ptrRenderTexture = ptrTex;
	Ogre::RenderTexture* pTexture = ptrTex->getBuffer()->getRenderTarget();

	//缺省不刷新
	pTexture->setAutoUpdated(false);
	pTexture->addListener(&g_theListener);

	//--------------------------------------------------
	//放置摄像机
	Ogre::SceneManager* pScnManager = CEngineInterface::GetMe()->GetFairySystem()->getSceneManager();
	newNode.pCamera = pScnManager->createCamera(Ogre::String(szNodeName) + "_Camera");

	//放缩系数
	fVector3 fvScale = CEngineInterface::GetMe()->GetSacle();

	newNode.fCameraHeight=s_fHeight;
	newNode.fCameraDistance=s_fDistance;
	newNode.fCameraPitch=s_fPitch;

	STRING szUserCameraValue;
	pNode->Actor_GetObjectProperty(szCameraName, szUserCameraValue);
	//	if(szUserCameraValue.size() > 2 && szUserCameraValue.find(';') != STRING::npos)
	//	{
	//		sscanf(szUserCameraValue.c_str(), "%f;%f", &(newNode.fCameraHeight), &(newNode.fCameraDistance));
	//	}
	int Row_Index;
	Row_Index = atoi(szUserCameraValue.c_str());

	const tDataBase* pDBC = g_pDataBase->GetDataBase(DBC_MODEL_PARAMETER);
	KLAssert(pDBC);
	const _DBC_MODEL_PARAMETER* pParameter = NULL;

	pParameter = (const _DBC_MODEL_PARAMETER*)((tDataBase*)pDBC)->Search_Index_EQU(Row_Index);

	if(pParameter)
	{
		newNode.fCameraHeight = pParameter->nHeight;
		newNode.fCameraDistance = pParameter->nDistance;
	}

	//设置摄像机
	_UpdateCamera(newNode);

	newNode.pCamera->setNearClipDistance(10.f);
	newNode.pCamera->setAspectRatio((float)nTexWidth/nTexHeight);
	newNode.pCamera->setFOVy(Ogre::Degree(45.0f));	// 经验值
	newNode.pCamera->setProjectionType(Ogre::PT_PERSPECTIVE);	//透视投影 (平行投影 Ogre::PT_ORTHOGRAPHIC)

	//--------------------------------------------------
	//创建ViewPort
	newNode.pViewPort = pTexture->addViewport(newNode.pCamera, 1);
	newNode.pViewPort->setClearEveryFrame(true);	
	newNode.pViewPort->setBackgroundColour(Ogre::ColourValue(0,0,0,0));
	newNode.pViewPort->setOverlaysEnabled(false);
	newNode.pViewPort->setSkiesEnabled(false);
	newNode.pViewPort->setShadowsEnabled(false);

	//--------------------------------------------------
	//创建rectangle(如果纹理名称不为空并且所需的material template存在)
	Ogre::String backgroundTexName(szBackgroundName);

	Ogre::MaterialPtr originMat = Ogre::MaterialManager::getSingleton().getByName("UIModelBackground");

	if (false == backgroundTexName.empty() && false == originMat.isNull())
	{
		newNode.pRectange = new Ogre::Rectangle2D(true);
		newNode.pRectange->setCorners(-1.0f, 1.0f, 1.0f, -1.0f);

		Ogre::String cloneMatName = Ogre::String(szNodeName) + "_Rectangle";
		Ogre::MaterialPtr cloneMat = Ogre::MaterialManager::getSingleton().getByName(cloneMatName);

		if (cloneMat.isNull())
		{
			cloneMat = originMat->clone(cloneMatName);

			if (cloneMat->getNumTechniques())
			{
				Ogre::Technique* tech = cloneMat->getTechnique(0);

				if (tech->getNumPasses())
				{
					Ogre::Pass* pass = tech->getPass(0);

					if (pass->getNumTextureUnitStates())
					{
						Ogre::TextureUnitState* tex = pass->getTextureUnitState(0);

						tex->setTextureName(szBackgroundName);
					}
				}
			}

		}  

		newNode.pRectange->setMaterial(cloneMat->getName());

		newNode.pRectange->setRenderQueueGroup(Ogre::RENDER_QUEUE_BACKGROUND);
		newNode.pRectange->setVisibilityFlags(Fairy::OVF_GUI_ELEMENTS);

		// 设置boundingbox为无限大,以防被camera剔除掉(默认的包围盒大小为-1,1)
		newNode.pRectange->setBoundingBox( 
			Ogre::AxisAlignedBox( 
			Ogre::Vector3(Ogre::Math::NEG_INFINITY, Ogre::Math::NEG_INFINITY, Ogre::Math::NEG_INFINITY),
			Ogre::Vector3(Ogre::Math::POS_INFINITY, Ogre::Math::POS_INFINITY, Ogre::Math::POS_INFINITY) 
			) );

		Ogre::SceneNode* parentNode = 
			CEngineInterface::GetMe()->GetFairySystem()->getBaseSceneNode()->createChildSceneNode();

		parentNode->attachObject(newNode.pRectange);
	}

	//--------------------------------------------------
	//加入Map
	m_mapObject.insert(std::make_pair(newNode.strName, newNode));

	it = m_mapObject.find(newNode.strName);
	KLAssert(it != m_mapObject.end());

	//加入索引Map
	m_mapIndexOfViewPort.insert(std::make_pair(newNode.pViewPort, &(it->second)));
	return it;
}
Ejemplo n.º 11
0
void ZoneListWidget::_createImages(ImageMap& retlist)
{
    retlist.clear();

    Ogre::TexturePtr texture = Ogre::TextureManager::getSingleton().createManual( "EntityTex",
                   Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, Ogre::TEX_TYPE_2D,
                   256, 256, 0, Ogre::PF_A8R8G8B8 , Ogre::TU_RENDERTARGET );

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

    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("EntityCam");
    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(0,0,0,0));

    ModularZoneFactory* factory = dynamic_cast<ModularZoneFactory*>(OgitorsRoot::getSingletonPtr()->GetEditorObjectFactory("Modular Zone Object"));
    if(!factory)return;
    factory->loadZoneTemplates();
    ZoneInfoMap zoneTemplates = factory->getZoneTemplateMap();

    Ogre::Entity *mEntity;

    unsigned char dataptr[300 * 300 * 6];
    unsigned char *dataptr2;
    Ogre::PixelBox pb(256,256,1,Ogre::PF_A8R8G8B8, dataptr);

    EntityMap entities;
    ZoneInfoMap::iterator zi;
    for(zi=zoneTemplates.begin();zi!=zoneTemplates.end();++zi)
    {
        Ogre::String addstr = (*zi).second.mMesh;
        if(entities.find((*zi).first) == entities.end())
            entities.insert(EntityMap::value_type((*zi).first,addstr));
    }

    EntityMap::const_iterator ite = entities.begin();

    while(ite != entities.end())
    {
        Ogre::String addstr = ite->second;

        mEntity = mSceneMgr->createEntity("MZP_Preview", addstr);

        mSceneMgr->getRootSceneNode()->attachObject(mEntity);

        //TODO: It would be nice to retrieve a Preview Camera Position from
        //the .zone file
        //TODO: also render portal outlines clearly so that the user can see
        //how the zone is laid out
        Ogre::Vector3 vSize = mEntity->getBoundingBox().getCorner(Ogre::AxisAlignedBox::NEAR_RIGHT_TOP);//.getHalfSize();//============
        Ogre::Vector3 vCenter = mEntity->getBoundingBox().getCenter();

//FIXME ------ NICE PREVIEWS NEEDED - bigger

        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 * 1.1f) + vCenter;
        vSize = Ogre::Vector3(maxsize * 0.5f, vSize.y, maxsize * 0.5f) + vCenter;
        //vSize.x +=vSize.x/2;//Maybe test to see which is larger x/2 or z/2 and use that?
        //vSize.z +=vSize.x/2;
        //RTTCam->setProjectionType(Ogre::PT_ORTHOGRAPHIC);

        RTTCam->setPosition(vSize.x,vSize.y,vSize.z);
        RTTCam->lookAt(vCenter.x,vCenter.y,vCenter.z);

        rttTex->update();
        rttTex->copyContentsToMemory(pb, Ogre::RenderTarget::FB_FRONT);


        dataptr2 = new unsigned char[96 * 96 * 4];
        Ogre::PixelBox pb2(96,96,1,Ogre::PF_A8R8G8B8, dataptr2);
        Ogre::Image::scale(pb,pb2);

        addstr.erase(addstr.length() - 5, 5);
        retlist.insert(ImageMap::value_type((*ite).first, dataptr2));

        mEntity->detachFromParent();
        mSceneMgr->destroyEntity(mEntity);

        ite++;
    }

    rttTex->removeAllViewports();
    Ogre::Root::getSingletonPtr()->destroySceneManager(mSceneMgr);
    Ogre::TextureManager::getSingletonPtr()->unload(texture->getName());
    Ogre::TextureManager::getSingletonPtr()->remove(texture->getName());
}
Ejemplo n.º 12
0
int OgreOculus::go(void)
{
	// Create Root object
	root = new Ogre::Root("plugin.cfg", "ogre.cfg");

	// OpenGL
    root->loadPlugin("RenderSystem_GL_d");
    root->setRenderSystem(root->getRenderSystemByName("OpenGL Rendering Subsystem"));

	// Initialize Root
	root->initialise(false);

	// Initialize Oculus
	ovrHmd hmd;
	ovrHmdDesc hmdDesc;
	ovrGraphicsLuid luid;
	ovr_Initialize(nullptr);
	if(ovr_Create(&hmd, &luid) != ovrSuccess)
		exit(-1);
	hmdDesc = ovr_GetHmdDesc(hmd);
	if(ovr_ConfigureTracking(hmd,
		ovrTrackingCap_Orientation |ovrTrackingCap_MagYawCorrection |ovrTrackingCap_Position,
		0) != ovrSuccess)
		exit(-2);

	// Turn off HUD
	ovr_SetInt(hmd, "PerfHudMode", ovrPerfHud_Off);

	// Create a window
	window = root->createRenderWindow("Ogre + Oculus = <3", hmdDesc.Resolution.w/2, hmdDesc.Resolution.h/2, false);

	// Create scene manager and cameras
	smgr = root->createSceneManager(Ogre::ST_GENERIC);

	// Load Ogre resource paths from config file
    Ogre::ConfigFile cf;
    cf.load("resources_d.cfg");

    // Go through all sections & settings in the file and add resources
    Ogre::ConfigFile::SectionIterator seci = cf.getSectionIterator();

    Ogre::String secName, typeName, archName;
    while (seci.hasMoreElements())
    {
        secName = seci.peekNextKey();
        Ogre::ConfigFile::SettingsMultiMap *settings = seci.getNext();
        Ogre::ConfigFile::SettingsMultiMap::iterator i;
        for (i = settings->begin(); i != settings->end(); ++i)
        {
            typeName = i->first;
            archName = i->second;

            Ogre::ResourceGroupManager::getSingleton().addResourceLocation(
                archName, typeName, secName);
        }
    }

	// Set resources
	Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5);
	Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();

	// Create the model itself via OgreModel.cpp
	createOgreModel(smgr);

	// Create camera
	createCamera();

	// Set viewport and background color
	Ogre::Viewport* vp = window->addViewport(mCamera);
	vp->setBackgroundColour(Ogre::ColourValue(34, 89, 0)); // Yellow

	// Set aspect ratio
	mCamera->setAspectRatio(
    Ogre::Real(vp->getActualWidth()) /
    Ogre::Real(vp->getActualHeight()));

	// Initialize glew
	if(glewInit() != GLEW_OK)
		exit(-3);

	// Get texture sizes
	ovrSizei texSizeL, texSizeR;
	texSizeL = ovr_GetFovTextureSize(hmd, ovrEye_Left, hmdDesc.DefaultEyeFov[left], 1);
	texSizeR = ovr_GetFovTextureSize(hmd, ovrEye_Right, hmdDesc.DefaultEyeFov[right], 1);

	// Calculate render buffer size
	ovrSizei bufferSize;
	bufferSize.w = texSizeL.w + texSizeR.w;
	bufferSize.h = max(texSizeL.h, texSizeR.h);

	// Create render texture set
	ovrSwapTextureSet* textureSet;
	if(ovr_CreateSwapTextureSetGL(hmd, GL_RGB, bufferSize.w, bufferSize.h, &textureSet) != ovrSuccess)
		exit(-4);

	// Create Ogre render texture
	Ogre::GLTextureManager* textureManager = static_cast<Ogre::GLTextureManager*>(Ogre::GLTextureManager::getSingletonPtr());
	Ogre::TexturePtr rtt_texture(textureManager->createManual("RttTex", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
		Ogre::TEX_TYPE_2D, bufferSize.w, bufferSize.h, 0, Ogre::PF_R8G8B8, Ogre::TU_RENDERTARGET));
	Ogre::RenderTexture* rttEyes = rtt_texture->getBuffer(0, 0)->getRenderTarget();
	Ogre::GLTexture* gltex = static_cast<Ogre::GLTexture*>(Ogre::GLTextureManager::getSingleton().getByName("RttTex").getPointer());
	GLuint renderTextureID = gltex->getGLID();

	// Put camera viewport on the ogre render texture
	Ogre::Viewport* vpts[nbEyes];
	vpts[left]=rttEyes->addViewport(cams[left], 0, 0, 0, 0.5f);
	vpts[right]=rttEyes->addViewport(cams[right], 1, 0.5f, 0, 0.5f);
	vpts[left]->setBackgroundColour(Ogre::ColourValue(34, 89, 0)); // Black background
	vpts[right]->setBackgroundColour(Ogre::ColourValue(34, 89, 0));

	ovrTexture* mirrorTexture;
	if(ovr_CreateMirrorTextureGL(hmd, GL_RGB, hmdDesc.Resolution.w, hmdDesc.Resolution.h, &mirrorTexture) != ovrSuccess)
		exit(-5);
	Ogre::TexturePtr mirror_texture(textureManager->createManual("MirrorTex", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
		Ogre::TEX_TYPE_2D, hmdDesc.Resolution.w, hmdDesc.Resolution.h, 0, Ogre::PF_R8G8B8, Ogre::TU_RENDERTARGET));

	// Get GLIDs
	GLuint ogreMirrorTextureID = static_cast<Ogre::GLTexture*>(Ogre::GLTextureManager::getSingleton().getByName("MirrorTex").getPointer())->getGLID();
	GLuint oculusMirrorTextureID = ((ovrGLTexture*)mirrorTexture)->OGL.TexId;

	// Create EyeRenderDesc
	ovrEyeRenderDesc EyeRenderDesc[nbEyes];
	EyeRenderDesc[left] = ovr_GetRenderDesc(hmd, ovrEye_Left, hmdDesc.DefaultEyeFov[left]);
	EyeRenderDesc[right] = ovr_GetRenderDesc(hmd, ovrEye_Right, hmdDesc.DefaultEyeFov[right]);

	// Get offsets
	ovrVector3f offset[nbEyes];
	offset[left]=EyeRenderDesc[left].HmdToEyeViewOffset;
	offset[right]=EyeRenderDesc[right].HmdToEyeViewOffset;

	// Compositor layer
	ovrLayerEyeFov layer;
	layer.Header.Type = ovrLayerType_EyeFov;
	layer.Header.Flags = 0;
	layer.ColorTexture[left] = textureSet;
	layer.ColorTexture[right] = textureSet;
	layer.Fov[left] = EyeRenderDesc[left].Fov;
	layer.Fov[right] = EyeRenderDesc[right].Fov;
	layer.Viewport[left] = OVR::Recti(0, 0, bufferSize.w/2, bufferSize.h);
	layer.Viewport[right] = OVR::Recti(bufferSize.w/2, 0, bufferSize.w/2, bufferSize.h);

	// Get projection matrices
	for(size_t eyeIndex(0); eyeIndex < ovrEye_Count; eyeIndex++)
	{
		// Get the projection matrix
		OVR::Matrix4f proj = ovrMatrix4f_Projection(EyeRenderDesc[eyeIndex].Fov,
			static_cast<float>(0.01f),
			4000,
			true);

		// Convert it to Ogre matrix
		Ogre::Matrix4 OgreProj;
		for(size_t x(0); x < 4; x++)
			for(size_t y(0); y < 4; y++)
				OgreProj[x][y] = proj.M[x][y];

		// Set the matrix
		cams[eyeIndex]->setCustomProjectionMatrix(true, OgreProj);
	}

	// Variables for render loop
	bool render(true);
	ovrFrameTiming hmdFrameTiming;
	ovrTrackingState ts;
	OVR::Posef pose;
	ovrLayerHeader* layers;

	// Create event listener for handling user input
	createEventListener();

	//Run physics loop in a new thread
	std::map<Ogre::Entity*, Ogre::Vector3> positionRequests;
	std::map<Ogre::Entity*, std::string> animationRequests;
	std::map<Ogre::Entity*, std::vector<int>> rotationRequests;
	std::map<std::string, std::string> message;
	std::thread physicsThread(physicsLoop, smgr, &message, &positionRequests, &animationRequests, &rotationRequests);

	// Render loop
	while(render)
	{
		// Suspend physics loop and perform requested movement/rotations/animations
		if(positionRequests.size() > 0 || animationRequests.size() > 0 || rotationRequests.size() > 0){
			message.insert(std::pair<std::string, std::string>("", ""));
		
			for(auto const &request : positionRequests) {
				Ogre::Vector3 pos = request.second;
				Ogre::SceneNode* sceneNode = request.first->getParentSceneNode();
				sceneNode->setPosition(pos);
			}

			for(auto const &request : animationRequests) {
				request.first->getAnimationState(request.second)->addTime(0.1);
			}

			for(auto const &request : rotationRequests) {
				Ogre::SceneNode* sceneNode = request.first->getParentSceneNode();
				sceneNode->roll(Ogre::Degree(request.second[0]));
				sceneNode->pitch(Ogre::Degree(request.second[1]));
				sceneNode->yaw(Ogre::Degree(request.second[2]));
			}

			positionRequests.clear();
			animationRequests.clear();
			rotationRequests.clear();

			// Resume physics loop
			message.clear();
		}

		// Update Ogre window
		Ogre::WindowEventUtilities::messagePump();

		// Advance textureset index
		textureSet->CurrentIndex = (textureSet->CurrentIndex + 1) % textureSet->TextureCount;
		
		// Capture user input
		mKeyboard->capture();
		mMouse->capture();

		// Movement calculations
		mPlayerNode->translate(mDirection, Ogre::Node::TS_LOCAL);
		hmdFrameTiming = ovr_GetFrameTiming(hmd, 0);
		ts = ovr_GetTrackingState(hmd, hmdFrameTiming.DisplayMidpointSeconds);
		pose = ts.HeadPose.ThePose;
		ovr_CalcEyePoses(pose, offset, layer.RenderPose);
		oculusOrient = pose.Rotation;
		oculusPos = pose.Translation;
		mHeadNode->setOrientation(Ogre::Quaternion(oculusOrient.w, oculusOrient.x, oculusOrient.y, oculusOrient.z) * initialOculusOrientation.Inverse());
		
		// Apply head tracking
		mHeadNode->setPosition(headPositionTrackingSensitivity * Ogre::Vector3(oculusPos.x, oculusPos.y,oculusPos.z));
		
		// Update Ogre viewports
		root->_fireFrameRenderingQueued();
		vpts[left]->update();
		vpts[right]->update();

		// Copy the rendered image to the Oculus Swap Texture
		glCopyImageSubData(renderTextureID, GL_TEXTURE_2D, 0, 0, 0, 0,
		((ovrGLTexture*)(&textureSet->Textures[textureSet->CurrentIndex]))->OGL.TexId, GL_TEXTURE_2D, 0, 0, 0, 0,
		bufferSize.w,bufferSize.h, 1);
		layers = &layer.Header;

		// Submit new frame to the Oculus and update window
		ovr_SubmitFrame(hmd, 0, nullptr, &layers, 1);
		window->update();

		// Exit loop when window is closed
		if(window->isClosed()) render = false;
	}

	// Shud down Oculus
	ovr_Destroy(hmd);
	ovr_Shutdown();

	// Delete Ogre root and return
	delete root;
	return EXIT_SUCCESS;
}
Ejemplo n.º 13
0
/*!
  Initialisation of Ogre.

  Load the plugins that are specified in the plugins.cfg or
  plugins_d.cfg files. These files are located in
  VISP_HAVE_OGRE_PLUGINS_PATH folder that is defined in vpConfig.h.
  Note that plugins.cfg file is always considered under Unix
  platforms. The file plugins_d.cfg is only considered under Windows
  when the build type is Debug.

  Load also the resources that are defined in the resources.cfg
  file. This file is located in VISP_HAVE_OGRE_RESOURCES_PATH folder
  that is defined in vpConfig.h.

  \param bufferedKeys : If true, use of buffered input for the keyboard (see
  Ogre documentation). Note that this parameter is only useful if OIS is used.

  \param hidden : If true, the created window will be hidden.
  Note that this functionnality requires Ogre3D 1.8.1 at least.

  \exception vpException::ioError : If the required plugins.cfg /
  plugins_d.cfg or resources.cfg files are not accessible.

*/
void vpAROgre::init(bool
#ifdef VISP_HAVE_OIS
		    bufferedKeys
#endif
        ,bool hidden
		    )
{
  // Create the root
  // mPluginsPath may contain more than one folder location separated by ";"
  bool pluginsFileExists = false;
  std::string pluginFile;
  std::vector<std::string> plugingsPaths = vpIoTools::splitChain(std::string(mPluginsPath), std::string(";"));
  for (size_t i=0; i<plugingsPaths.size(); i++) {
#if defined(NDEBUG) || !defined(_WIN32)
    pluginFile = plugingsPaths[i]+"/plugins.cfg";
#else
    pluginFile = plugingsPaths[i]+"/plugins_d.cfg";
#endif

    if(vpIoTools::checkFilename(pluginFile)) {
      pluginsFileExists = true;
      break;
    }
  }
  if (! pluginsFileExists) {
    std::string errorMsg = std::string("Error: the requested plugins file \"")
#if defined(NDEBUG) || !defined(_WIN32)
        + std::string("plugins.cfg")
#else
        + std::string("plugins_d.cfg")
#endif
    + std::string("\" doesn't exist in ")
    + std::string(mPluginsPath);
    std::cout << errorMsg << std::endl;

    throw (vpException(vpException::ioError, errorMsg));
  }
  std::cout << "######################### Load plugin file: " << pluginFile << std::endl;

  if(Ogre::Root::getSingletonPtr() == NULL)
    mRoot = new Ogre::Root(pluginFile, "ogre.cfg", "Ogre.log");
  else
    mRoot = Ogre::Root::getSingletonPtr();

  // Load resource paths from config file

  // File format is:
  //  [ResourceGroupName]
  //  ArchiveType=Path
  //  .. repeat
  // For example:
  //  [General]
  //  FileSystem=media/
  //  Zip=packages/level1.zip

  // mResourcePath may contain more than one folder location separated by ";"
  bool resourcesFileExists = false;
  std::string resourceFile;
  std::vector<std::string> resourcesPaths = vpIoTools::splitChain(std::string(mResourcePath), std::string(";"));
  for (size_t i=0; i<resourcesPaths.size(); i++) {
    resourceFile = resourcesPaths[i]+"/resources.cfg";
    if(vpIoTools::checkFilename(resourceFile)) {
      resourcesFileExists = true;
      break;
    }
  }
  if (! resourcesFileExists) {
    std::string errorMsg = std::string("Error: the requested resource file \"resources.cfg\"")
        + std::string("doesn't exist in ")
        + std::string(mResourcePath);

    std::cout << errorMsg << std::endl;

    throw (vpException(vpException::ioError, errorMsg));
  }
  std::cout << "######################### Load resource file: " << resourceFile << std::endl;
  Ogre::ConfigFile cf;
  cf.load(resourceFile);

  // Go through all sections & settings in the file
  Ogre::ConfigFile::SectionIterator seci = cf.getSectionIterator();

  Ogre::String secName, typeName, archName;
  while (seci.hasMoreElements())
    {
      secName = seci.peekNextKey();
      Ogre::ConfigFile::SettingsMultiMap *settings = seci.getNext();
      Ogre::ConfigFile::SettingsMultiMap::iterator i;
      for (i = settings->begin(); i != settings->end(); ++i)
	{
	  typeName = i->first;
	  archName = i->second;
	  Ogre::ResourceGroupManager::getSingleton().addResourceLocation(
									 archName, typeName, secName);
	}
    }
    std::cout << "##################### add resources" << std::endl;
  //Add optionnal resources (given by the user).
  for(std::list<std::string>::const_iterator iter = mOptionnalResourceLocation.begin(); iter != mOptionnalResourceLocation.end(); ++iter){
    Ogre::ResourceGroupManager::getSingleton().addResourceLocation(*iter, "FileSystem", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
  }

  // Create the window
  bool canInit = true;
  if(mshowConfigDialog){
    mRoot->restoreConfig();
    if(!mRoot->showConfigDialog())
      canInit = false;
  }
  else{
    if(!mRoot->restoreConfig())
      canInit = false;
  }

  if(!mRoot->isInitialised()){
    if(!canInit){ //We set the default renderer system
      const Ogre::RenderSystemList& lRenderSystemList = mRoot->getAvailableRenderers();
      if( lRenderSystemList.size() == 0 )
        throw "ConfigDialog aborted"; // Exit the application on cancel

      Ogre::RenderSystem *lRenderSystem = lRenderSystemList.at(0);
      std::cout << "Using " << lRenderSystem->getName() << " as renderer." << std::endl;
      mRoot->setRenderSystem(lRenderSystem);
    }

    mRoot->initialise(false);
  }

  bool fullscreen = false;
  Ogre::NameValuePairList misc;
  Ogre::ConfigOptionMap config = mRoot->getRenderSystem()->getConfigOptions();
  Ogre::ConfigOptionMap::const_iterator it = config.begin();

  while( it != config.end() ){
    Ogre::String leftconf = (*it).first;
    Ogre::String rightconf = (*it).second.currentValue;

    if(leftconf == "Video Mode"){
      if(canInit) {
        int ret = sscanf(rightconf.c_str(), "%d %*s %d", &mWindowWidth, &mWindowHeight);
        if (ret == 0)
          std::cout << "Cannot read Ogre video mode" << std::endl;
      }
      else{
        if(mWindowWidth == 0 && mWindowHeight == 0){
          mWindowWidth = mBackgroundWidth;
          mWindowHeight = mBackgroundHeight;
        }
      }
    }
    else if( leftconf == "Full Screen" ){
      if(canInit){
        if(rightconf == "Yes") fullscreen = true;
      }
    }
    else
      misc[leftconf] = rightconf;

    it++;
  }

  // With Ogre version >= 1.8.1 we hide the window
  if( hidden ){
#if ( OGRE_VERSION >= (1 << 16 | 8 << 8 | 1) )
    misc["hidden"] = "true";
    windowHidden = true;
#endif
  }
  mWindow = mRoot->createRenderWindow(name, mWindowWidth, mWindowHeight, fullscreen, &misc);

  // Initialise resources
  Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
  //-----------------------------------------------------
  // 4 Create the SceneManager
  //
  //		ST_GENERIC = octree
  //		ST_EXTERIOR_CLOSE = simple terrain
  //		ST_EXTERIOR_FAR = nature terrain (depreciated)
  //		ST_EXTERIOR_REAL_FAR = paging landscape
  //		ST_INTERIOR = Quake3 BSP
  //-----------------------------------------------------

  mSceneMgr = mRoot->createSceneManager(Ogre::ST_GENERIC);

  // Create the camera
  createCamera();

  // Create a viewport
  Ogre::Viewport* viewPort = mWindow->addViewport(mCamera);
//   Ogre::Viewport* viewPort = mCamera->getViewport();
  viewPort->setClearEveryFrame(true);
  // Set the projection parameters to match the camera intrinsic parameters
  updateCameraProjection();

  // Create the 3D scene
  createScene();

  // Initialise and register event handlers
  mRoot->addFrameListener(this);

  // Register as a Window listener
  Ogre::WindowEventUtilities::addWindowEventListener(mWindow, this);

#ifdef VISP_HAVE_OIS
  // Initialise OIS
  Ogre::LogManager::getSingletonPtr()->logMessage("*** Initializing OIS ***");
  OIS::ParamList pl;

  size_t windowHnd = 0;
  std::ostringstream windowHndStr;
  // Initialise window
  mWindow->getCustomAttribute("WINDOW", &windowHnd);
  windowHndStr << windowHnd;
  pl.insert(std::make_pair(std::string("WINDOW"), windowHndStr.str()));
  // Let the user use the keyboard elsewhere
#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) // UNIX
  pl.insert(std::make_pair(std::string("x11_keyboard_grab"), std::string("false")));
#endif

  mInputManager = OIS::InputManager::createInputSystem( pl );

  //Create all devices
  // Here we only consider the keyboard input
  mKeyboard = static_cast<OIS::Keyboard*>(mInputManager->createInputObject( OIS::OISKeyboard, bufferedKeys ));
  if ( !bufferedKeys ) mKeyboard->setEventCallback ( this);
#endif

  // Initialise a render to texture to be able to retrieve a screenshot
  Ogre::TexturePtr Texture = Ogre::TextureManager::getSingleton().createManual("rtf", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,Ogre::TEX_TYPE_2D,
                                                                               mWindow->getWidth(),mWindow->getHeight(), 0, Ogre::PF_R8G8B8A8, Ogre::TU_RENDERTARGET);



//   Ogre::TexturePtr Texture = Ogre::TextureManager::getSingleton().createManual("rtf", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,Ogre::TEX_TYPE_2D,
//                                                                                640,480, 0, Ogre::PF_R8G8B8A8, Ogre::TU_RENDERTARGET);
  Ogre::RenderTexture* RTarget = Texture->getBuffer()->getRenderTarget();
  /*Ogre::Viewport* Viewport =*/ RTarget->addViewport(mCamera);
  RTarget->getViewport(0)->setClearEveryFrame(true);
  RTarget->getViewport(0)->setOverlaysEnabled(false);
}