CULL STREAMS FOR FINE-GRAINED RENDERING PREDICATION

摘要

One embodiment of the present invention sets forth a technique to perform fine-grained rendering predication using an IGPU. A graphics driver divides a 3D object into batches of triangles. The IGPU processes each batch of triangles through a modified rendering pipeline to determine if the batch is culled. The IGPU writes bits into a bitstream corresponding to the visibility of the batches. Advantageously, this approach to rendering predication provides fine-grained culling without adding unnecessary overhead, thereby optimizing both hardware resources and performance.