Guild Wars 2

If you look closely all the above ground foliage will move like it is being blown around by the wind. In addition it will also move if you walk over them which adds another layer to the immersion. However when I dived underwater, I noticed that all the underwater plants were perfectly still all the time. I wonder why this is? Would it be too taxing on graphics cards to have them move about due to the ocean waves? What you guys think?

I am not 100% sure they move on their own in all zones, but I think in Lion’s Arch they do. Not to mention they move when you swim through them most times.