The way the programmer who added variable foliage animation described it, the effect is rudimentary. When the ‘wind picks up’,
trees and grass simply play the same animation at a faster speed.
I’m not exactly sold on the “pulls down the realism” argument, personally. Outdoors, it’s all too easy for the wind to pick up a falling leaf or something, catching your eye when you’re watching for movement. But in games, the default state of everything in the world is to be still unless it’s been specifically animated or had a physics simulation put on it. If realism is the goal (and it’s not
![:tank:](https://community.akamai.steamstatic.com/economy/emoticon/tank)
), the phenomenon of mistaking inanimate objects for creatures should be present.