双层介质光线散射效果的实时绘制

Real-Time Rendering of Light Scattering Effect in Double-Layer Participating Media

实时绘制光线散射效果是计算机图形学中的一个难点.利用光线散射的特性,提出一种多项式近似的方法;通过解析双层介质光线散射公式,能实现实时地绘制双层介质中不同光源分布、不同介质特性下的光线散射效果.

Real time rendering of light scattering effect is one of the difficult problems in computer graphics. This paper proposes a polynomial approximate method using the property of light scattering. By analyzing transport equations of the single scattering light for point light source in double-layer participating media, we can implement the model with different luminous intensity distributions and properties of participating media in real time