EFFICIENT TESSELLATION CACHE

摘要

Systems and methods may provide for conducting a region determination of whether one or more domain points associated with a tessellated patch are shared between multiple region sets of the tessellated patch. If the one or more domain points are not shared between multiple region sets of the tessellated patch, an intra-region cache may be automatically interrogated for non-shared shading data. If the one or more domain points are shared between multiple region sets of the tessellated patch, an inter-region cache may be automatically interrogated for shared shading data. In one example, one or more references to the shared shading data is generated and associated with the one or more domain points when cache hits occur in the inter-region cache.

主权项

1. A computing system comprising:
a data interface including one or more of a network controller, a memory controller or a bus, the data interface to obtain an untessellated patch and one or more tessellation factors associated with a three dimensional (3D) scene; a tessellator to generate a tessellated patch and one or more domain points based on the untessellated patch and the one or more tessellation factors; and a domain shader including:
an intra-region cache,an inter-region cache, anda cache controller coupled to the intra-region cache and the inter-region cache, the cache controller to conduct a region determination of whether the one or more domain points are shared between multiple region sets of the tessellated patch, interrogate the intra-region cache for non-shared shading data if the one or more domain points are not shared between multiple region sets of the tessellated patch, and interrogate the inter-region cache for shared shading data if the one or more domain points are shared between multiple region sets of the tessellated patch.