Image::Format format=Image::Format::PNG; auto origin=Director::getInstance()->getVisibleOrigin(); auto visibleSize=Director::getInstance()->getVisibleSize(); RenderTexture *renderTexture = RenderTexture::create(visibleSize.width*0.5,visibleSize.height*0.5,Texture2D::PixelFormat::RGBA8888); Rect fullRect=Rect(origin.x,origin.y,visibleSize.width*0.5,visibleSize.height*0.5); Rect virtualViewPort=Rect(visibleSize.width*0.25,visibleSize.height*0.25,visibleSize.height*0.5); //抓取屏幕部分内容保存为纹理。 rtBegin: renderTexture在整个屏幕上的起始位置。 fullRect: 整个屏幕的大小 fullViewport: 整个viewport的大小。 renderTexture->setVirtualViewport(Point(visibleSize.width*0.25,visibleSize.height*0.25),fullRect,virtualViewPort); renderTexture->beginWithClear(0.0f,0.0f,0.0f); Director::getInstance()->getRunningScene()->visit(); renderTexture->end(); renderTexture->saveToFile("happy.png",format);
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