Water shader...

I need the exact water shader form this picture:
(picture is form Frequently Asked Questions site( Q. What is a Physics Engine? ) )


p.s.
Not waves i know that this is a "Fluid physics" example..

wow i need that shader too.

i guess it is one of those from the a6 templates.

no..this is not a shader form A/6 temples..

looks like environment mapping. the distortion is due to the vector deformations. there's no refraction, as you can see.