半透明物体表面阴影的渲染

Rendering Shadows on Translucent Objects Surface

基于阴影映射算法,提出一种半透明物体表面阴影的渲染方法.考虑半透明物体的次表面散射的光学特性,在获得阴影图后加入阴影接收表面的材质散射系数,确定随机取样的范围,使用加权平均方法计算目标点处于阴影区域的概率值,最终渲染场景.实验证明,该方法能够真实模拟半透明物体表面阴影中散影区的渲染效果.

Based on shadow mapping,an algorithm of rendering shadows on translucent objects is presented.Considering sub-surface scattering optical properties of translucent objects,after getting the shadow map,this algorithm uses the scattering coefficient of translucent objects to determine the scope,then computes the probability value of the target point,renders the scene at last.Experimental result shows that the method can simulate the scatter shadows on translucent objects realistically.