Range masking help please

[WAS]

I'd really like to solve Hannes, and my issue with global shores.

In my setup, the sphere is displaced by a constant scalar, which is your water level. Waves are then derived from the terrain scalar with some smoothing.

My issue is masking the surf to the shore procedurally. Any setup I do with smooth step/linear doesn't work when the water level is changed beyond X. It'll flip, or disappear under the water level mask. What am I not getting here?

In the example it looks right in the surface layer as is, but once you try out different altitudes, it doesn't work right.

[WAS]

Accidently posted this in another reply, but this seems to work, but not if you back up into the floor of the scalar naturally.

[Dune]

It does, as far as I can see, but I would alter just a few things, like here.

[WAS]

Yeah I thought about the leverage as well, but I figured that both inputs is more like a boolean. I test some scenarios to make sure it didn't flip (like at random during different renders or altitudes).

Actually I see your leverage goes into both inputs which would just raise the water level some, which makes sense in case any added disp sinking terrain.