Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.

The present paper deals with a new efficient shooting and bouncing ray (SBR) method based on OptiX and normal vectors correction. The basic idea is to make full use of the computing resources of the RTX series graphics cards. For ray tracing, the algorithm uses OptiX to invoke the built-in RT Cores...

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Autores principales:	Gaogui Xu, Chunzhu Dong, Tao Zhao, Hongcheng Yin, Xuan Chen
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4367e090865f47d4a5c15c5d0d053b91
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id	oai:doaj.org-article:4367e090865f47d4a5c15c5d0d053b91
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spelling	oai:doaj.org-article:4367e090865f47d4a5c15c5d0d053b912021-12-02T20:10:01ZAcceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.1932-620310.1371/journal.pone.0253743https://doaj.org/article/4367e090865f47d4a5c15c5d0d053b912021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253743https://doaj.org/toc/1932-6203The present paper deals with a new efficient shooting and bouncing ray (SBR) method based on OptiX and normal vectors correction. The basic idea is to make full use of the computing resources of the RTX series graphics cards. For ray tracing, the algorithm uses OptiX to invoke the built-in RT Cores of hardware. Thus, a fast intersection test can be implemented. To reduce the error of ray tracing caused by the facetted surface characterizing the curved surface, the direction of the reflected ray is corrected by normal vectors correction. Additionally, multiple GPU cores are invoked to accelerate the calculation of far-field integration of millions of ray tubes, which can improve the efficiency of the algorithm while reducing the data transmission time of heterogeneous devices. Simulation results show that the ray path after normal vectors correction is consistent with the theoretical results, and the algorithm can predict the RCS of arbitrary facetted geometries, which is 60 times faster than the SBR method based on kd-tree.Gaogui XuChunzhu DongTao ZhaoHongcheng YinXuan ChenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0253743 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gaogui Xu Chunzhu Dong Tao Zhao Hongcheng Yin Xuan Chen Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.
description	The present paper deals with a new efficient shooting and bouncing ray (SBR) method based on OptiX and normal vectors correction. The basic idea is to make full use of the computing resources of the RTX series graphics cards. For ray tracing, the algorithm uses OptiX to invoke the built-in RT Cores of hardware. Thus, a fast intersection test can be implemented. To reduce the error of ray tracing caused by the facetted surface characterizing the curved surface, the direction of the reflected ray is corrected by normal vectors correction. Additionally, multiple GPU cores are invoked to accelerate the calculation of far-field integration of millions of ray tubes, which can improve the efficiency of the algorithm while reducing the data transmission time of heterogeneous devices. Simulation results show that the ray path after normal vectors correction is consistent with the theoretical results, and the algorithm can predict the RCS of arbitrary facetted geometries, which is 60 times faster than the SBR method based on kd-tree.
format	article
author	Gaogui Xu Chunzhu Dong Tao Zhao Hongcheng Yin Xuan Chen
author_facet	Gaogui Xu Chunzhu Dong Tao Zhao Hongcheng Yin Xuan Chen
author_sort	Gaogui Xu
title	Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.
title_short	Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.
title_full	Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.
title_fullStr	Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.
title_full_unstemmed	Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.
title_sort	acceleration of shooting and bouncing ray method based on optix and normal vectors correction.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/4367e090865f47d4a5c15c5d0d053b91
work_keys_str_mv	AT gaoguixu accelerationofshootingandbouncingraymethodbasedonoptixandnormalvectorscorrection AT chunzhudong accelerationofshootingandbouncingraymethodbasedonoptixandnormalvectorscorrection AT taozhao accelerationofshootingandbouncingraymethodbasedonoptixandnormalvectorscorrection AT hongchengyin accelerationofshootingandbouncingraymethodbasedonoptixandnormalvectorscorrection AT xuanchen accelerationofshootingandbouncingraymethodbasedonoptixandnormalvectorscorrection
_version_	1718374996657569792

Acceleration of shooting and bouncing ray method based on OptiX and normal vectors correction.

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