VR development engine by means of the rapid development of VR in the entertainment industry becomes more sophisticated and intelligent. New VR engine inside added more real-time global illumination systems which have adjustable parameters, its effect is more close to the real PBR material system. With the aid of these new techniques, developers can develop next generation simulation teaching software meeting the various teaching demand. This article mainly introduces how to use the new generation Unity5 engine to build lighting simulation software.%VR开发引擎借助于VR在娱乐行业的迅猛发展变得更加高端和智能化。新的VR引擎里增加了更多可调节参数的实时全局光照系统，其效果更加贴近于现实的PBR材质系统。借助这些新的技术，开发者就可以开发出满足各种教学需求的次时代仿真教学软件。文章主要介绍如何运用新一代Unity5引擎打造灯光模拟仿真软件。
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