一个用OPENGL编写的程序源码，菊花茶，效果是一个立体的玻璃杯里盛着大半杯水，上面还漂着几片菊花-A source program written using OPENGL, chrysanthemum tea, the effect is a three-dimensional glass in candy in half cup of water, which also had a few pieces of floating chrysanthemums