Underwater Fog
 

Hi, I've been trying to apply the water physical environment fog to a scene of mine and am getting nowhere fast. I can bare;y make heads or tales of the settings. I render and get the light to dark gradient look but all the geometry in my scene takes on a solid blue color. (see attached) i'm just trying to get he fog to work realisticly but it's not cooperating at all, PLease help.