Rendering processing of a screen to be displayed is divided and performed between a first device and a second device. The first device generates a first screen, on which some rendering objects of rendering objects to be rendered on the screen to be displayed are rendered, based on information for determining rendered contents of the screen to be displayed. The second device generates a second screen on which rendering objects, excepting the some rendering objects from the rendering objects to be rendered on the screen to be displayed, are rendered. The first device receives the second screen from the second device, and generates the screen to be displayed by compositing the first and second screens.