塔式起重机视景仿真系统场景建模与驱动

摘要

根据Multigen Creator和Vega这两种虚拟现实软件的特点,确立了塔式起重机视景仿真系统的设计方案,叙述了场景建模和纹理制作方法,探讨了在建模过程中使用的LOD技术、实例化技术、删除冗余面、公告牌技术以及外部引用五个模型优化技术,在VC++软件编程环境中实现场景驱动,完成了塔式起重机视景仿真系统的场景建模与驱动,为塔式起重机虚拟操作培训系统的研究与开发奠定了基础.%This paper establishes the design scheme of a visual simulation system for tower cranes and describes the methods of modeling scene and manufacturing texture according to the characteristics of the two virtual reality softwares of Multigen Creator software and Vega software. The five model optimization techniques including LOD technique, instanting technique, culling redundant faces, billboard technology and external reference are discussed in the process of modeling. Scene driving is realized in programming environment of VC ++ software. Finally the scene modeling and driving are completed of tower crane visual simulation system. The technique provides the foundation for the study and development of virtual operating training system.