void Effect4::onEnter()
{
    EffectAdvanceTextLayer::onEnter();

    CCLens3D* lens = CCLens3D::create(ccp(100,180), 150, ccg(32,24), 10);
    CCActionInterval* move = CCJumpBy::create(5, ccp(380,0), 100, 4);
    CCActionInterval* move_back = move->reverse();
    CCActionInterval* seq = (CCActionInterval *)(CCSequence::create( move, move_back, NULL));

    /* In cocos2d-iphone, the type of action's target is 'id', so it supports using the instance of 'CCLens3D' as its target.
        While in cocos2d-x, the target of action only supports CCNode or its subclass,
        so we make an encapsulation for CCLens3D to achieve that.
    */

    CCDirector* director = CCDirector::sharedDirector();
    CCNode* pTarget = Lens3DTarget::create(lens);
    // Please make sure the target been added to its parent.
    this->addChild(pTarget);

    director->getActionManager()->addAction(seq, pTarget, false);
    this->runAction( lens );
}