基于GPU的光线追踪算法  

Ray Tracing Algorithm Based on GPU

作　　者：赵建伟[1] 班钰 王朝[1] 闫双胜 

机构地区：[1]中国矿业大学矿山机器人中心实验室,北京100083

出　　处：《兵工自动化》2016年第5期68-71,共4页Ordnance Industry Automation

基　　金：中国博士后科学基金(2012M510424);中央高校基金科研业务费专项基金项目(800015FH)

摘　　要：为在个人PC上实现实时光线追踪技术,设计并实现一种基于GPU的光线追踪算法。介绍光线追踪原理,深入分析实时光线追踪的特点,研究实时光线追踪中最困难的空间加速结构构建和搜索问题,并进行算法优化和实验。结果表明:该算法可得到非常逼真的图形效果,为人们提供深度信息,实现二维图像中的三维效果。在仿真模拟、几何造型、广告影视、指挥控制及科学计算的可视化等领域都得到广泛应用。A ray tracing algorithm based on GPU is designed and implemented to realize real-time ray tracing technology on personal PC. This paper introduces the principle of ray tracing, analyzes the characteristics of real-time ray tracing, and studies the construction of the most difficult space accelerating structure and the search problem of the real time ray tracing. The results show that the algorithm can get a very realistic graphics effect, providing people with depth information, and realize the three-dimensional effect in 2D images. It has been widely used in the fields of simulation, geometric modeling, advertising, film, television, command and control, and the visualization of scientific computing.

关 键 词：光线跟踪 加速结构 着色语言 GPU 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]