The shaders used for both the trees and the vegetation utilize a custom wind animation method. In order to control this effect a “FAE_WindController” script component must be active in the scene. You can find a preconfigured prefab under the Prefabs/Effects/ folder. Or you can create one through the menu: GameObject/3D Objects/FAE Wind Controller
See the scripts section for detailed information about this script.
Currently, only the Wind Speed parameter can be changed at runtime. Other parameter may induce jittering during the value changes.