基于球面调和函数的漫反射表面快速光照技术的研究

基于图像的光照是计算机图形学中一个新的研究领域。本文研究了一种基于球面调和函数理论的快速光照技术,此方法采用三阶球面调和函数近似估计理想漫反射物体表面的光亮度,以此实现物体表面光亮度的计算。实验结果表明,本算法能够实现真实感图像的实时绘制。

Research on Fast Lighting on the Diffuse Surface Using Spherical Harmonics

Image-based lighting is a new research area in computer graphics.A fast lighting approach based on spherical harmonics is discussed in this paper.In our approach,the irradiance of the diffuse surface is approximated by a third order spherical harmonics.The experimental results show that our approach can generate realistic objects under the illumination of light probe images in a real-time manner.