Cocos2d-x3.0//astaticmethodSprite*HelloWorld::maskedSpriteWithSprite(Sprite*textureSprite,Sprite*maskSprite){//1RenderTexture*rt=RenderTexture::create(maskSprite->getContentSize().width,maskSprite->getContentSize().height);//2maskSprite->setPosition(maskSprite->getContentSize().width/2,maskSprite->getContentSize().height/2);textureSprite->setPosition(textureSprite->getContentSize().width/2,textureSprite->getContentSize().height/2);//3maskSprite->setBlendFunc(BlendFunc{GL_ONE,GL_ZERO});textureSprite->setBlendFunc(BlendFunc{GL_DST_ALPHA,GL_ZERO});//4rt->begin();maskSprite->visit();textureSprite->visit();rt->end();//5Sprite*retval=Sprite::createWithTexture(rt->getSprite()->getTexture());retval->setFlippedY(true);returnretval;}..