A Tetrahedron Meshed Ray Tracing Method Based on Constrained Delaunay Tetrahedralization

DING Haoyang; WEI Zaixue; MA Hengbiao; WEI Dan; SANG Lin; YANG Dacheng

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A Tetrahedron Meshed Ray Tracing Method Based on Constrained Delaunay Tetrahedralization

DING Haoyang #,WEI Zaixue,MA Hengbiao,WEI Dan,SANG Lin *,YANG Dacheng

Wireless Theories and Technologies (WT&T) Lab, Beijing University of Posts and Telecommunications, 100876

*Correspondence author

#Submitted by

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Funding: none

Opened online: 4 November 2013

Accepted by: none

Citation: DING Haoyang,WEI Zaixue,MA Hengbiao.A Tetrahedron Meshed Ray Tracing Method Based on Constrained Delaunay Tetrahedralization[OL]. [ 4 November 2013] http://en.paper.edu.cn/en_releasepaper/content/4565676

Conventional ray tracing (RT) techniques face an obvious shortage of slow performance. Several acceleration methods have been proposed to address this problem and the tetrahedron meshed ray tracing (TMRT) method is verified superior to others in specific scenarios. In the TMRT method, Tetrahedralization is first required to preprocess the original scenario to trace rays through it. In this paper, we propose a TMRT method based on constrained Delaunay tetrahedralization. Compared with other RT method, the voxel method, we will see a marked acceleration effect of TMRT. We will also compare the CDT method with other tetrahedralization method to illustrate the impact of tetrahedralization on the TMRT acceleration effect in different scenarios.

Keywords:ray tracing; acceleration; tetrahedralization; Delaunay

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