C++ Camera::getSceneManager方法代码示例

//.........这里部分代码省略.........

    //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);
}

//Ogre::Camera::getSceneManager() const
SceneManagerHandle camera_get_scenemanager(CameraHandle handle)
{
    Ogre::Camera* camera = static_cast<Ogre::Camera*>(handle);
    return static_cast<SceneManagerHandle>(camera->getSceneManager());

}