Right now I'm creating a watery surface with this, which I found on something or other that I downloaded.

And it mosty looks pretty good where something is reflecting in the water. Kind of flat otherwise. So I've been looking at the wave3d node but I don't know how to use it, most especially how to connect it. I'm thinking I can create wave effects, maybe ripple effects. Hopefully that's what it does!

Can I buy a clue? Okay, maybe just have one for free?