irr::video::IVideoDriver* driver = device->getVideoDriver();
   irr::scene::ISceneManager* smgr = device->getSceneManager();
   irr::gui::IGUIEnvironment* guienv = device->getGUIEnvironment();

   irr::scene::ICameraSceneNode* cam = smgr->addCameraSceneNode(0, irr::core::vector3df(0,30,-40), irr::core::vector3df(0,5,0));
   smgr->addLightSceneNode(0, irr::core::vector3df(0,20,-30));

   irr::scene::ISceneNode* cube1 = smgr->addCubeSceneNode();
   cube1->setMaterialTexture(0, driver->getTexture("../../irrlicht-1.5/media/t351sml.jpg"));
   cube1->setMaterialFlag(irr::video::EMF_LIGHTING, false);
   irr::scene::ISceneNode* cube2 = smgr->addCubeSceneNode(5.0f, 0, -1, irr::core::vector3df(10,0,0));

   while (device->run())
   {
      driver->beginScene(true, true, irr::video::SColor(255,100,101,140));

      smgr->drawAll();
      guienv->drawAll();

      driver->endScene();

// http://www.irrlicht3d.de/forum2/viewtopic.php?p=4523#p4523
      // maus position ermitteln (2d koordinate)
      irr::core::vector3df pt;
      irr::core::triangle3df triangle;

      irr::core::position2d<irr::s32> mousepos = device->getCursorControl()->getPosition();
      // maus position zu einem 3d strahl transformieren (mit hilfe der aktuellen kamera)
      irr::core::line3df ray = smgr->getSceneCollisionManager()->getRayFromScreenCoordinates(mousepos, cam);

      irr::scene::ITriangleSelector* selector = smgr->createTriangleSelector(cube1, ???????); // da stand "node" drin, das habe ich aber nicht, wo muss ich das setzen?

      //smgr->getSceneCollisionManager()->getCollisionPoint(ray, selector, pt, triangle);
      // optional: koordinate in objekt-koordinatensystem umrechnen
      //node->getRelativeTransformation().transformVect(pt);

      //Caption = mousepos.X;
   }
   device->drop();