Attached Link: Water editor & materials

You have to start with a water plane which has the meta water material. Then you edit the water object (double click in the wold browser, or object->edit in the top menu).  You'll get the 'water surface options' window. first you can control the overall wave appearance by ticking the 'global wave control' box and moving the slider. Then un-tick the box, which will enable you to change the individual sliders in the 'waves' section. I attached the values I had in a recent experiment and part of the associated image. You can change more parameters in the function editor. You maybe interested also in the thread in the link above.

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
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