Need help with Shallow Water Ripples effect in XNA

I need to create a water-like surface in XNA, viewed from above.

Like this : http://www.youtube.com/watch?v=Nr42AG1aPAY

C开发者_JAVA技巧an someone point me to some examples?

I don't know where to start.

Thanks,

SW.

This is a common request which is demonstrated for most programming environments. You can find lots of resources online by simply doing a search for water ripple shader:
http://www.bing.com/search?q=water+ripple+shader

You'll probably find lots of non-xna versions (for example), but if it's an hlsl shader it should be simple to port it to xna since it supports those directly on both windows and the xbox.