Wind Zone は、Spherical か Directional のどちらかのモードを持つことができます。
You can have more than one Spherical Wind Zone in a Scene, but it does not make much sense to have more than one Directional Wind Zone in your Scene as it affects the whole Scene. This Wind Zone Mode is used by the WindZone.mode member.
| Directional | Wind zone affects the entire Scene in one direction. |
| Spherical | Wind Zone は、半径内でのみ効果を発揮し、中心から端に行くにつれて減衰します |