opengl融合与雾化，平滑明暗渲染等函数。显示荷塘月色，四片荷叶与四朵荷花伏在水面上，水面上映出倒影，月影落在水面上，单击荷塘工具按钮，荷花会慢慢开放，月亮会随着雾气起落进行阴晴圆缺的变化。-opengl integration and atomization, smooth shading rendering function. Show the Lotus Pond and Full Moon, 4 lotus leaf and lotus 4 V in the water, the wa