I have no idea what you mean with waves.
Waves as in water?

Water in source maps are undetectable, until I find a way to decompile maps.
And treeSway doesn't work on bumpmaps.

Can't be done until I've found a way.

ok

I say it for there to be tide and floods

also tsunamis

if you can, you can also say that when it rains fence, little by little puddles appear and that they become bigger as time goes by and when the sun rises it disappears little by little

Closing thread as I've already said what can't be done here:
https://psteamcommunity.yuanyoumao.com/workshop/filedetails/discussion/1132466603/1500126447383502132/

This is not UE4 .. this is Source, a really old engine with a 4GB memory limit.