计算机应用研究2024，Vol.41Issue(10)：3166-3172,7.DOI:10.19734/j.issn.1001-3695.2024.01.0012
面向三维流管可视化的各向异性屏幕空间环境光遮蔽算法
Anisotropic screen-space ambient occlusion algorithm for 3D streamtubes visualization
摘要
Abstract
Screen-space ambient occlusion(AO)is a popular global illumination technique which can be used to achieve a better understanding of complex 3D streamtubes scenes.This paper proposed an anisotropic screen-space AO method to visua-lize complex 3D streamtubes.The basic idea is to utilize the characteristics of 3D streamtubes to design two anisotropic filters to guide screen-space sampling as well as spatial reusing.More specifically,this paper proposed to anisotropically generate samples perpendicular to the direction of streamtube to calculate AO.This mechanism can reduce the number of samples re-quired to generate satisfactory results.In order to further improve the performance of the algorithm,this paper proposed to ani-sotropically reuse AO results from nearby pixels along the streamtube direction.The experimental results indicate that the pro-posed algorithm outperforms the existing solutions both in rendering quality and performance.关键词
流管可视化/环境光遮蔽/各向异性/全局光照/屏幕空间Key words
streamtubes visualization/ambient occlusion(AO)/anisotropic/global illumination/screen-space methods分类
信息技术与安全科学引用本文复制引用
王安澜,李方钏,张严辞..面向三维流管可视化的各向异性屏幕空间环境光遮蔽算法[J].计算机应用研究,2024,41(10):3166-3172,7.基金项目
国家重大专项资助项目(GJXM92579) （GJXM92579）
四川省重点研发资助项目(2023YFG0122) （2023YFG0122）
