been investigating as to why the DAT rendered unit doesn't render under the waterline when viewed from above water. I have one piece of the puzzle figured out now. The game engine doesn't think it needs to render anything below the waterline. In the screenshot below is an NLL (a GR2 rendered unit). You can clearly see black below the waterline showing where the game engine should render the object below the waterline (it looks all funky because I'm playing with the water PS):
Now with a DAT rendered unit the black area below the waterline doesn't exist. Thus the game engine doesn't render anything. Here is the Akita (a DAT rendered unit):
Notice that nothing is 'drawn' below the waterline.
Now the question is how do we tell the game engine to render that part? What controls that?
I'm still looking at the shaders as I think they hold all the answers.