基于GPU和均匀栅格法的光线追踪算法研究

由于GPU(图形处理器)性能的大幅提高和可编程性的发展,基于GPU的光线追踪算法逐渐成为研究热点。光线追踪算法需要的计算量大,基于此,分析了光线追踪算法的基本原理,在NVIDIA公司的CUDA(计算统一设备体系结构)环境下采用均匀栅格法作为加速结构实现了光线追踪算法。实验结果表明,该计算模式相对于传统基于CPU的光线追踪算法具有更快的整体运算速度,GPU适合处理高密度数据计算。

Research of ray-tracing algorithm based on GPU and uniform grid method

Ray-tracing is the technique that rendering images from a three dimensional model of a scene by projecting it on to a two dimensional image plane.In the past decades,the development of the computer graphic(especial for raster graphics systems) emphasize on building the high-efficient,low-cost large graphic systems.For the above-mentioned reasons such as the implementation of a large number of mathematical calculation,the large-scale parallel processing technologies play a important role in graphics compose....