物体表面质感模型与绘制综述

doi:10.11896/j.issn.1002-137X.2014.05.001

摘要/Abstract

摘要： 综合论述了真实感图形学的主要研究内容之一——物体表面质感。阐明了影响物体表面质感的两个因素:物体表面的光学特性和几何细节。根据光线在物体表面的反射、次表面散射、透射等情况,重点综述了表征物体表面质感的一般模型和具体模型分类。详细分析了具体的BRDF模型、SVBRDF模型、BSSRDF模型、TSVBRDF模型和BTF模型,总结了这几种模型各自的特点、适用范围、绘制效果。展示了真实感表面质感绘制在影视制作、游戏产业、虚拟设计、文化遗产保护等领域的应用情况。最后对真实感表面质感绘制的研究进行了总结和展望。

关键词: 真实感图形学,表面质感,真实感绘制,双向反射分布函数,双向纹理函数

Abstract: This paper summarized one of the main research contents of photorealistic graphics－the appearance models and rendering．It represented the two key factors that influence the appearance of different materials:the optical properties and geometric details of materials surfaces．And according to the interaction of light and materials’ surfaces－reflection,subsurface scattering and transmission and so on,it described emphatically the appearance models and rendering,analyzed in detail the specific models:BRDF,SVBRDF,BSSRDF,TSVBRDF and BTF,and concluded the characteristics of the models,as well as gave the rendering results using different models．Then it exhibited the main application areas with different models used in appearance rendering,such as film and television production,games industry,virtual design and cultural heritage protection．In the end,it concluded and prospectd the research of appearance modeling and rendering.

Key words: Photorealistic graphics,Appearance,Photorealistic rendering,BRDF,BTF

江海燕,周明全,武仲科,郭迪,张旭. 物体表面质感模型与绘制综述[J]. 计算机科学, 2014, 41(5): 1-7. https://doi.org/10.11896/j.issn.1002-137X.2014.05.001

JIANG Hai-yan,ZHOU Ming-quan,WU Zhong-ke,GUO Di and ZHANG Xu. Survey of Appearance Models and Rendering[J]. Computer Science, 2014, 41(5): 1-7. https://doi.org/10.11896/j.issn.1002-137X.2014.05.001

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