文章基本信息

标题：Research on Parallel KD-Tree Construction for Ray Tracing
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作者：Zhang Peicheng ; Xu Huahu ; Bian Minjie 等
期刊名称：International Journal of Grid and Distributed Computing
印刷版ISSN：2005-4262
出版年度：2016
卷号：9
期号：11
页码：49-60
出版社：SERSC
摘要：Many computer graphics rendering algorithms and techniques use ray tracing for generation of photo-realistic images, and kd-tree is the most popular acceleration data structure for ray tracing. In order to avoid the inefficient parallel performance of kd-tree construction based on surface area heuristic (SAH), an algorithm using Morton code and path compression was present in this paper. Instead of building a kd-tree layer-by-layer, the proposed approach can be performed in parallel from bottom of a conceptual perfect binary tree. Experimental results on GPU show that our work achieves a faster kd-tree construction procedure.
关键词：ray tracing; kd;-tree; ;kd-tree construction; Morton code; GPU