Thank you Slin.
I take "shore effect code," from "Loopix's water shader"(Mystymood) and i changed it a little.
And i use nvidia ocean shader(for vertex wave animation)
and i use Oliver's refraction code for refraction
and Conitec's floor mirror shader for mirror
and projgrid for sun light;

or;



Yes terrain is dark, i will correct it. Shadow is ugly, because terrain is very large.(65535H&V) I can't correct it.
Look,this is Island Demo's shadow map;

and this is Jungle demo's shadow map;
It's cool because it's not large.



I will change groundtexture of the sea. Maybe i use "sand texture" for next demo.
Thanks again and sory for my bad speak english.