Tessellation device including cache, method thereof, and system including the tessellation device

摘要

A tessellation method includes determining whether a previous tag the same as a current tag of a current patch is stored in a cache, and transmitting a previous tessellation pattern corresponding to the previous tag stored in the cache to a domain shader when a cache hit occurs. The method may further include, when a cache miss occurs, generating a current tessellation pattern corresponding to the current patch using a tessellator and transmitting the generated current tessellation pattern to the domain shader, and storing the generated current tessellation pattern in the cache.

主权项

1. A tessellation method comprising:
determining a cache hit occurs when a previous tag of a previous patch stored in a cache is the same as a current tag of a current patch and that a cache miss occurs when the previous tag is not the same as the current tag; transmitting a previous tessellation pattern corresponding to the previous tag stored in the cache to a domain shader when the cache hit occurs; and performing, by a graphics processing unit, a tessellation operation on the current patch to generate a current tessellation pattern for output to the domain shader when the cache miss occurs.