Simulating underwater lighting?

I have a SolidWorks assembly that lives underwater.  Somecomponents of the assembly shade each other, givena specific underwater light distribution.

I want to analyze the shading effects because some of theshadedcomponents are light sensitive. With another program(Hydrolight),I can simulate the intensity and distribution of light(which is afunction of the sun's elevation, absorbing andscattering materialsin the water, and depth...all things I cancontrol in Hydrolight).This distribution of light is typicallysymmetric in azimuthalangle, but different at various elevationangles (0-180 deg, e.g.,more light coming from above than below,unless you are near abrightly reflecting sea bottom...which I amnot).

The idea is to create several different lighting scenarios(e.g.,different sun elevations) and different SolidWorksassemblyorientations (i.e., rotations about the z axis) withrespect toeach lighting scenario, and calculate the shaded area onsome ofthe light-sensitive components.

However, I only have eight or nine lights to work withinSolidWorks, right?

Does anyone have suggestions on creating a PhotoWorkslightingsetup to match what I know from Hydrolight?  Do Ijustposition the lights as best I can (e.g., 0, 30 60 90 120 180deg)and adjust their relative intensities based on myHydrolightoutput?

Note that I do not need to create a rendering where theobjectlooks like it is submersed in water. I just need to getmyPhotoWorks lighting to match the radiance distribution I knowfromHydrolight.Thanks for you patience if you have read this far.Andthanks in advance if you have any tips.SolidworksPhotoworks