void RenderTextureTest::restartCallback(Ref* sender)
{
    auto s = new (std::nothrow) RenderTextureScene();
    s->addChild(restartTestCase()); 

    Director::getInstance()->replaceScene(s);
    s->release();
}
void RenderTextureTest::restartCallback(Object* sender)
{
    auto s = new RenderTextureScene();
    s->addChild(restartTestCase()); 

    Director::getInstance()->replaceScene(s);
    s->release();
}