OSG下读取flt例程，需要预先配置好环境(Reading FLT routines under OSG requires a pre configured environment)

虚拟现实场景生成仿真，用于仿真建模，根据目标和背景亮度计算公式和3维图形开发包,建立了仿真3维场景。基于仿真场景,对激光动态光束定向系统的跟踪识别过程进行了仿真研究。(This sample illustrates the use of IR Scene Generator (vpIRSceneGen). It defines the class myApp, which is derived from vpApp, and overrides the The town.acf loads