Quote - well unless you need a large expanse of water visible in render
hwy not use a terrain with a function to create waves, thus lower memory requirements as you can erase pieces of the terrian not visible in render which will reduce reosurces needed, and being a terrian, should be fixxed? :)

Thanks for the suggestion, that's a thing I always wanted to try anyway, so I think it's a good time for it NOW :)

Quote -
odd that the water is changing though

Found the reason: in the displacement function there's a time node (probably for animations).
Disconnect this node and the wave stays static. Easy fix.