此程序案例，利用vs2013工具进行开发，适合初学OSG的人使用，添加了阴影效果，添加了视图等，并且可以添加风雪等特效。(This program case is developed by vs2013 tool, which is suitable for people who learn OSG, add shadow effect, add views and so on, and add special effects such as snow and snow.)