Here's some code that I used that made a nice smooth sea.  It might help.

   #declare SeaHeight = -16.3
   plane
   {
      y, SeaHeight
      texture
      {
         T_Chrome_2D          // This is in one of the standard include
files:
                                            // METALS.inc maybe.
         normal
         {
            waves 0.07
            frequency 50.0
            scale 600.0
         }
      }
   }

Dominik Herrmann wrote in message <6gn6l7$60q$1@oz.aussie.org>...
>I have a question to all those POV-Ray-Cracks:
>I'd like to render a scene which contains a lake. My problem is I have no
>idea how to produce natural looking waves. Has anyone ideas how to do? With
>heightfields or the ripples pattern?
>
>Dominik Herrmann
>
>

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