SYSTEM AND METHOD FOR EFFICIENT MULTI-GPU RENDERING OF GEOMETRY BY PRETESTING AGAINST SCREEN REGIONS USING CONFIGURABLE SHADERS

摘要

A method including rendering graphics for an application using graphics processing units (GPUs). Responsibility for rendering of geometry is divided between GPUs based on screen regions, each GPU having a corresponding division of the responsibility which is known. A plurality of pieces of geometry of an image frame is assigned to the GPUs for geometry testing. A first GPU state configuring one or more shaders to perform the geometry testing is set. Geometry testing is performed at GPUs on the plurality of pieces of geometry to generate information regarding each piece of geometry and its relation to each of the plurality of screen regions. A second GPU state configuring the one or more shaders to perform rendering is set. The information generated for each of the plurality of pieces of geometry is used when rendering the plurality of pieces of geometry at the GPUs.