水与光相互作用能产生一种梦幻般的景象：由于反射和折射，弯曲的光线在海底形成舞动的刻蚀，因此在海面上就能看到了变换无穷的花纹，本程序主要实现此功能-water and light interaction can produce a fantasy picture : reflection and refraction, Bending light in the seabed dancing etching, on the surface you can see the transformation