Underwater effects on Water plane with waves?

Development World Creation
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1

Hi there, I have a water material that is coming along nicely. It uses distance based tessellation and has height maps to control the waves. In the past, I have placed a post process volume at the water line to get the underwater look, but this no longer works properly due to the variation of the water height with the waves, and the fact that post process volumes are flat.

Is there a better way to accomplish this to achieve underwater effects with the changing height of the water?

2

Add a bendable post-process material and inside it determine if camera is below water or above water.

3

In the post process material, how would I get height information into it from the water plane? It is not flat due to the displacement for the waves.

4

Either sample the water’s heightmap, or duplicate the calculations, depending on how you are displacing your water at first place. Can also do it once for camera, instead of doing it per-pixel.