Here is a frame from a short test animation done for a museum installation created in Cnema 4d and AE. Cinema 4d's Hair module was used for the underwater plants, and used Trapcode's particular for the floaties. Trapcodes "Shine" was used to add some glare to the specular highlights wich helps add a sense that we are in a fuid environment. Frishclufts's lenscare plugin was used for the DOF--all in AfterEeffects.