I remember having some issues with the shader when GG made the DX11 move as they stopped working. I fixed some of the issues by replacing the dx9 shaders with the equivalent ones in GG. Only issue left was a transparency thing which didn't seem to have a replacement in GG.
Pity about taking them off the store as it was really GG's update that broke them and as such not really the artists fault.
I think I have a video of them in action somewhere, they are pretty cool. Probably my first New Beginnings WIP, although they would have been in the dark and hard to spot I'm pretty sure.
A cool feature to have (I know we don't really want any until GG is in better shape) would be to be able to plot an outline around or along a shore line and have waves positioned as needed to create something like this out of the box
Similar to road tools in say the original Farcry engine. Road tools would be nice too
But only once the current batch of issues are mostly fixed. Or of course to get GG to just do it automagically when terrain goes above the water level
SPECS: Ryzen 1700 CPU. Nvidia 970GTX. 16 Gig Memory. Win 10.