Wind in Vue6 is applied on a per plant basis, and doesn't work on ecosystems ( breeze does, but not wind). Ventilators are here to correct this. They can be applied as a global wind to all plants in a scene, including ecosystems made of plants. They can be omni ( wind blows equally in all directions), or directed ( think of it as a spotlight, works the same, except it blows wind instead of shedding light), but they can also be attached to an object and blow wind from this object ( think of a landing chopper), and all parameters can be animated of course.