Volumetric Vector-Based Representation for Indirect Illumination Caching

作     者：Romain Pacanowski Xavier Granier Christophe Schlick Pierre Poulin 

作者机构：CEA-CESTABP2 Le Barp33114France ACM INRIA Bordeaux Sud-Ouest/LaBRI-Bordeaux UniversityTalence33405France State Key Lab of CAD&CGZhejiang University LIGUMDept.I.R.O.Universite de MontrealMontreal QCH3C 3J7Canada 

出 版 物：《Journal of Computer Science & Technology》 (计算机科学技术学报（英文版）)

年 卷 期：2010年第25卷第5期

页      面：925-932页

核心收录：

学科分类：08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the Lavoisier Grant from French Ministry of Foreign Affairs.Xavier Granier is supported by the Open Project Program of the State Key Lab of CAD&CG Zhejiang University under Grant No.A1007 

主　　题：caching for global illumination photon mapping particle tracing 

摘      要：This paper introduces a caching technique based on a volumetric representation that captures low-frequency indirect *** structure is intended for efficient storage and manipulation of *** is based on a 3D grid that stores a fixed set of irradiance *** preprocessing,this representation can be built using almost any existing global illumination *** rendering,the indirect illumination within a voxel is interpolated from its associated irradiance vectors,and is used as additional local light *** with other techniques,the 3D vector-based representation of our technique offers increased robustness against local geometric variations of a *** thus demonstrate that it may be employed as an efficient and high-quality caching data structure for bidirectional rendering techniques such as particle tracing or photon mapping.