9I recently studied this program's source code to re-create the effect in one of my games. I say, isn't that what demos are for? Demo-wise, there's not much more you could ask for, except for a little more demonstration of the affect along with other graphical output. Excellent job!

8It is very nice program/demo. The water effect is always beutiful. But the author goes further, he added several options to modify the effect... very nice work...

6Nice effect. The program that demonstrates it lets you tweak the paramaters of the rain-effect, but playing with rain gets a bit boring after a while. Comes with sourcecode.