公开(公告)号：US20140160126A1

公开(公告)日：2014-06-12

申请号：US14094567

申请日：2013-12-02

Applicant: NVIDIA CORPORATION

Inventor： Justin S. LEGAKIS ,  Emmett M. KILGARIFF ,  Michael C. SHEBANOW

IPC: G06T17/20

CPC classification number: G06T17/20 ,  G06T15/005

Abstract: A system and method for performing tessellation of three-dimensional surface patches performs some tessellation operations using programmable processing units and other tessellation operations using fixed function units with limited precision. (u,v) parameter coordinates for each vertex are computed using fixed function units to offload programmable processing engines. The (u,v) computation is a symmetric operation and is based on integer coordinates of the vertex, tessellation level of detail values, and a spacing mode.

Abstract translation: 用于执行三维表面贴片的细分的系统和方法使用具有有限精度的固定功能单元，使用可编程处理单元和其他镶嵌操作来执行一些镶嵌操作。 （u，v）使用固定功能单元计算每个顶点的参数坐标，以卸载可编程处理引擎。 （u，v）计算是对称运算，并且基于顶点的整数坐标，细节值的细分级别和间隔模式。