Hey guys,

I've used POV-ray off and on over the years but not much recently.  I'm trying
to build a scene as a background for a game and could use a little help.

The idea is to be looking under water from an angle that shows the sky at the
very top, the water surface changing to underwater and then the sea floor at the
bottom.

I have this so far:

#include "colors.inc"
  camera {
    location  <0, 20, -100>
    sky <0, -1, 0>
    up <0, -1, 0>
  }
  background { color SkyBlue }

    plane{<0,100,10>, 0
      texture{
        pigment{rgb <.2,.2,.2>}
        finish {ambient 0.15
                diffuse 0.55
                brilliance 6.0
                phong 0.8
                phong_size 120
                reflection 0.6}
              }// end of texture
        normal{
                bumps 0.75
                scale <20.5,10.5,10.5>
                turbulence 0.01
              }
     }// end of plane

  light_source { <100, 120, 40> color rgb <1, 1, 1> }
  fog {
    distance 400
    color rgb<0.5, 0.7, 0.9>
  }

That has a fairly good underwater look, I'll tweak with the distance and color
of the fog to perfect but how can I get the fog to stay under the water surface
and how can I get the sea floor down below?

Thanks for the help!

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