The Analysis and Creation of Mogao Caves' Three-Dimensional Model

Dunhuang Mogao Grottoes is one of the most important historical and cultural sites in China. This paper proposes using three-dimensional construction method for modelling Mogao Grottoes under commercial modeling package environment to achieve realistic and accurate results in terms of dunhuang culture's preservation. Considering the complexity and fidelity of the model, the complex and irregular part of the model with limited access to the dunhuang cave details and measurement, we used image-based modeling method, and together with using geometry-based modeling method for basic environmental map configuration. In addition, this paper put forward parameterized and modular modeling method to ensure the proportion of the model not distortion and to avoid lots of repeating work, in the same time, this method will improve the modeling efficiency. At last, this paper summarizes the rules and techniques in the UV Mapping process. The results show that this method can create realistic models of Mogao Grottoes, and the model can reach the demand that the preservation of Mogao Grottoes culture and scene roaming.