利用CryEngine构建虚拟地理环境

CryEngine Based Virtual Geographic Environments Construction

尝试采用新一代图形引擎CryEngine实现小尺度条件下多要素耦合与逼真表达,探索基于该引擎的虚拟地理环境构建方法,包括虚拟地形环境的快速构建方法、车辆建模与动态模拟方法、人物建模与智能行为模拟方法,以及场景集成与渲染方法等。以虚拟校园为原型系统,验证所提方法的可行性以及可视化效果,结果表明,基于CryEngine构建虚拟地理环境路线可行,尤其在面向小尺度虚拟环境时,能够很好地将环境、实体和人物紧密耦合在一起,且其逼真程度较现有虚拟环境有大幅度提升。

It is a challenge of integrating environment,entities and human in a high fidelity virtual geographic environments（VGE）,because of the complexity of the geo-phenomena,large volume of geospatial data,and the limitation of computer resource.We try to resolve this challenge discussed in this paper by utilizing a serious game engine,which is CryEngine,for small scale virtual environments.Methodology of CryEngine based construction of VGE is discussed.Meanwhile,several key technologies are involved,which are efficient re-construction of terrain,vehicle re-construction and dynamic simulation,human modeling and behaviors simulation,and virtual environments integration and rending respectively.A prototype of virtual campus is constructed to test the reasonability of developed methods and technologies.The result reveals that it is much reasonable to build a CryEngine based VGE to integrate environment,entities and human.The result also shows that CryEngine based VGE is of high fidelity compared with most existing virtual environments,especially for detail visualization and rendering in small scale.