Real time rendering of light scattering effect is one of the difficult problems in computer graphics.
光线散射效果的绘制对于增强计算机生成图形的真实感具有十分重要的作用。
The contradiction between the realistic and real-time of the shadow rendering algorithm has been a fundamental and difficult problem in computer graphics and virtual reality technology.
阴影绘制算法的真实感和实时性之间的矛盾，是计算机图形学和虚拟现实技术目前所要解决的一个基本难题。
Modern Graphics Processing Unit (or GPU) has powerful parallel computing capability, and thus using GPU to accelerate the real time rendering of highly detailed surfaces is an effective approach.
GPU处理具有较高的并行度，利用GPU对细节复杂模型的绘制进行加速是一个有效加速途径。
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