Thx a lot.
I have tried out the "OS_Water" shader. But I don't understand what I shoult enter in the "OS_WATER_INIT_action. What should be on the image of the blendmap ? the places, where the water is connected with the coast? when yes, which colors should I take for that? And what do you mean wit ReflectRes and RefractRes. I have tried out some numbers, but I always recived the message, that ther invalid arguments in it.

I hope you can help me...