基于光线跟踪方法的全局光照研究

Study on Global Illumination Using Ray Tracing

光线跟踪方法是解决全局光照问题的一种重要方法。概括性地提出光线跟踪方法研究的基本任务是研究关于采样、加速求交的问题,并综述性地分析了光线跟踪相关算法。介绍了该领域近期研究热点即实时光线跟踪以及基于图形硬件的光线跟踪的相关研究工作,指出了光线跟踪方法在解决全局光照问题时的优缺点以及未来的研究重点。展望了基于光线跟踪方法的全局光照应用前景。

Ray tracing is an important method to resolve global illumination. We think that the essential problem of ray tracing is the study on the light crossing and efficient sampling. This paper provided a survey on ray tracing algorithms. We introduced the research on real-time ray tracing and GPU based ray tracing, which is the hotspot at present. We pointed out the advantage and disadvantage of ray tracing based global illumination, and the research pivot in the near future. In the end, we prospected the application foreground of ray tracing based global illumination.