The terrain is 2 polygons and one draw call, takes up almost nothing except for the shader applied to it. I dare say we could get a few more FPS if we completely hide it. Added to list.
I have added a new item to the list which calls for a slider which can move the water plane higher and lower. Eventually volumes of water would be the preferred way to do all your water landscaping.
Replacing the water plane with your own object and apply the water shader to that is a nice idea. Ideas on how this can be incorporated into the UX would be welcomed!
PC SPECS: Windows 7 Ultimate 64-bit, Intel Core i7 920 (PASSMARK:5008), NVIDIA Geforce 9600 GT GPU (PASSMARK:752) , 6GB RAM