用CSharp代码编写的雾效，供大家交流学习-CSharp code prepared by fog effect, for all to learn

ESC：退出程序 F1：窗口模式或全屏模式的切换 E：打开或关闭Fog F：Fog三种模式的切换 GL_EXP->GL_EXP2->GL_LINEAR-ESC: exit F1: Window mode or full-screen mode switch E: open or closed Fog F: Fog three modes to switch GL_EXP-> GL_EXP2-> GL_LINEAR

Intelligent humidifier can control small fog fog