Besides that is too much effort for the result you are getting, it probably "looks good at a certain angle".
I would take it is better and more effecient to make a wave simulation fx shader (texture change with timer), and add some variables to change it's color according to the color of the water. This case it is blue, so you have white blueish grey wave on the walls.
Anyway, good job, getting fpsc to another level is something not much people do, you certainly show a good step on how to do just that
. So keep it up!
