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Hey ****, can’t you just reconstruct pixel position from scene depth map in pixel shader and then just use it as a mask for your underwater PP shader?
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That’s a good point, it should be possible. Would that allow a line dividing the water from the air? for example as you go underwater the water surface goes from the bottom to the top as you go down, or would it still instantly turn it off/on? Hmmm… will need to test that out it should work, thanks for the suggestion! 
Thanks for the info, will look into that soon!
LOD is the next thing to be added in, if you are interested I am looking to implement a procedural mesh generator similar to :
https://wiki.unrealengine.com/Procedural_Mesh_Generation
Not sure whether to go for now or get a basic LOD system working first, what do you think?
I’m in the process of setting up the repo at the moment, and need to make a couple quick tweaks, but very very soon (likely tomorrow).
What do you mean by “Foliage mode”? If the blueprint is in the scene all you should need to do is select it in the outliner and edit it in the details panel. Sorry not sure what you mean, can you clarify that bit? thanks