基于PBR材质的古壁画历时仿真系统设计  

Design of Diachronic Simulation System for Ancient Mural Based on PBR Material

作　　者：杨雪松[1,2] 蒋芷涵 赖非云 汤烨菲 YANG Xuesong;JIANG Zhihan;LAI Feiyun;TANG Yefei(Wuhan University,430072 Wuhan Hubei;Research Center of Human Settlements Environment Engineering Technology,430072 Wuhan Hubei)

机构地区：[1]武汉大学,湖北武汉430072 [2]湖北省人居环境工程技术研究中心,湖北武汉430072

出　　处：《设计艺术研究》2023年第6期25-31,共7页Design Research

基　　金：2020年度湖北省重点研发计划项目(2020BAB119)。

摘　　要：壁画数字化展示以“原貌重现”与“现状呈现”的形式来实现,都是对壁画处于某一时间点上的状态进行模拟。依据壁画病害变化的数据,使用PBR渲染原理,构建历时仿真系统,可以模拟实现壁画历时变化的动态效果。使用PBR原理进行历时仿真,首先需要梳理壁画病害的特征,构建特征参数间的关系,其次需要创建历时控制的虚拟材质,最终通过壁画结构、随机值、病害形态-现状、病害形态-未来和动态控制五个模块实现壁画病害的动态变化。基于PBR原理构建的古代壁画历时仿真系统,可以模拟壁画类文物的肌理与结构之变化,有利于增强壁画展示的叙事性。The digital display of murals is realized in the form of reappearance of original appearance and presentation of current situation,both of which simulate the state of murals at a certain point in time.Based on the data of mural disease changes,PBR rendering principle is used to construct a diachronic simulation system,which can simulate and realize the dynamic display of diachronic changes of murals.Using the PBR principle to perform diachronic simulation,one first needs to sort out the characteristics of mural diseases and construct the relationship between characteristic parameters.Secondly,one needs to create diachronically controlled virtual materials.Finally,through the five modules of mural structure,random values,disease form-current situation,disease form–future trend and dynamic control to realize the dynamic changes of mural diseases.The diachronic simulation system of ancient murals built based on the PBR principle can simulate changes in the texture and structure of mural cultural relics,which is beneficial to enhancing the narrative of mural display.

关 键 词：壁画 数字化展示 参数化 历时仿真 PBR 

分 类 号：K879.41[历史地理—考古学及博物馆学]