System, method, and computer program product for pre-filtered anti-aliasing with deferred shading

A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform steps comprising

• assigning one or more samples to a plurality of clusters, each cluster in the plurality of clusters corresponding to an aggregate stored in an aggregate geometry buffer, wherein each of the one or more samples is covered by a visible fragment;
• rasterizing three-dimensional geometry to generate material parameters for each sample of the one or more samples;
• for each cluster in the plurality of clusters, combining the material parameters for each sample assigned to the cluster to produce the aggregate;
• and
• storing the combined material parameters for each cluster in the aggregate geometry buffer.

A system comprising:

• a memory configured to store an aggregate geometry buffer;
• and
• a plurality of multithreaded processing units that are included within a parallel processor and are coupled to the memory and configured to:
• assign one or more samples to a plurality of clusters, each cluster in the plurality of clusters corresponding to an aggregate stored in the aggregate geometry buffer, wherein each of the one or more samples is covered by a visible fragment;
• rasterize three-dimensional geometry to generate material parameters for each sample of the one or more samples;
• for each cluster in the plurality of clusters, combine the material parameters for each sample assigned to the cluster to produce the aggregate;
• and
• store the combined material parameters for each cluster in the aggregate geometry buffer.