Camera的设定和漫游实现，摄像漫游_有了摄像机你就可以在OpenGL场景中自由地漫游了。-Camera settings and roaming achieved _ roaming camera you can have the camera in OpenGL scene of roaming freely.

智能家居里的音乐场景源代码，自己做的，读取文件很方便，只要有记事本列表即可。-Smart home music scene in the source code, do it yourself, it is convenient to read the file, as long as you can list Notepad.