The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Mar. 12, 2010
Philip B. Johnson, Campbell, CA (US);
James C. Bowman, Pescadero, CA (US);
Philip B. Johnson, Campbell, CA (US);
James C. Bowman, Pescadero, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
One embodiment of the present invention sets forth a technique for detecting duplicate vertex indices in parallel and batching indices defining multiple primitives for parallel primitive processing. A lookback cache breaks the dependent loop for the miss processing. Because each index is compared to all previous indices (duplicate or not), each index is not dependent on whether the previous indices have hit or missed. This allows the comparison operation that detects the duplicate vertex indices to be fully pipelined. The duplicate vertex indices are removed to reduce the number of indices that define the primitives in the batch. Multiple, independent rasterizer units operate concurrently on the different batches of graphics primitives to render multiple primitives per system clock.