需要包含OpenGL的库文件glut32.dll 运行之后显示一个水平反转转动的红色薄片。假想光源在垂直上方，下面有其黑色的影子不断变化-need to contain OpenGL libraries glut32.dll displayed after running a reverse rotational levels of red sheet. In vertical imaginary light source above, the following is a black sh