//让物体圆周运动
//scene::ISceneNodeAnimator* anim = smgr->createFlyCircleAnimator(core::vector3df(0,0,30), 20.0f);
//让物体直飞
scene::ISceneNodeAnimator* anim = smgr->createFlyStraightAnimator(core::vector3df(0,0,60),core::vector3df(-300,0,60), 3500, true);