QUALCOMM Incorporated
Methods and apparatus for reducing memory bandwidth in multi-pass tessellation

Abstract:

The present disclosure relates to methods and apparatus for graphics processing. Aspects of the present disclosure can determine at least some shading data for each of a plurality of patches. Further, aspects of the present disclosure can store the at least some shading data for each of the plurality of patches in a GMEM. Additionally, aspects of the present disclosure can communicate the at least some shading data for each of the plurality of patches. In some aspects, the present disclosure can configure the GMEM for storing the at least some shading data for each of a plurality of patches. Aspects of the present disclosure can also calculate when the GMEM has stored a maximum amount of shading data. Moreover, aspects of the present disclosure can divide each of the plurality of patches into one or more sub-patches when the GMEM has stored the maximum amount of shading data.