基于傅里叶级数的次序无关透明渲染算法  

Order-Independent Transparency Based on Fourier Series

作　　者：宋晓峰 SONG Xiaofeng(College of Computer Science,Sichuan University,Chengdu 610065)

机构地区：[1]四川大学计算机学院,成都610065

出　　处：《现代计算机》2021年第14期87-91,共5页Modern Computer

摘　　要：提出一种高效的适用于实时渲染领域的次序无关透明渲染算法,该算法使用傅里叶级数来近似透射率函数,既有较好的近似效果,又具有次序无关的优良性质。此外,该算法结合Lanczos-Local-Typeσ-Averaging方法极大地削弱Gibbs效应的影响。实验表明,该算法与传统算法相比具有更高的效率与更低的显存消耗,具有更佳的实际应用价值。This paper proposes an efficient algorithm for real-time order-independent transparency.The algorithm uses Fourier series to approximate the transmittance function.It has good approximation effect and is order-independent.In Addition,this algorithm uses Lanczos-Local-Typeσ-Averaging method to greatly weaken the influence of Gibbs effect.Experimental results show that the algorithm has higher efficiency and lower memory consumption compared with the traditional algorithm,and has better practical significance.

关 键 词：次序无关透明 傅里叶级数 σ-Averaging 实时渲染 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]