ZHAO Jianlong, LI Tao, DONG Zhonghua, et al. Multi-threaded bidirectional parallel scan rasterization hardware accelerator[J]. 2021, (5): 91-93+97. DOI: 10.13873/J.1000-9787(2021)05-0091-03.
多线程双向并行扫描光栅化硬件加速器
摘要
光栅化是图形渲染管线中的关键环节
光栅化加速器是决定图形处理器性能的重要部件。基于重心坐标系的透视校正插值算法
在边函数算法基础上
提出双向四行并行的扫描方式
优化了光栅化算法
提高了图形渲染管线效率。硬件上实现了多线程双向并行扫描的光栅化加速器
验证环境采用20 nmXCVU440平台芯片
综合实现后频率为125 MHz
满足设计需求。
Abstract
Rasterization is a key part of the graphics rendering pipeline.Rasterization accelerators are important components that determine the performance of graphics processors.Based on perspective correction interpolation algorithm of gravity center coordinate system
a bidirectional four-row parallel scanning mode is proposed on the basis of edge function algorithm
rasterization algorithm is optimized
and the efficiency of graphics rendering pipeline is improved.A rasterization accelerator for multi-threaded bidirectional parallel scanning is implemented on the hardware.The verification environment uses a 20 nm XCVU440 platform chip