In the Environmental Curves tab of the Wwise Project Settings dialog, you can define the obstruction, occlusion, diffraction, and transmission settings for the sound objects for each platform in your project. オブストラクションは、ゲーム中にジオメトリにある壁や柱などの物体が、サウンドソースとリスナーの間の空間を部分的に塞ぐ時に起きる状況です。オクルージョンは、ゲームのジオメトリにある物体が、サウンドソースとリスナーの間の空間を完全に塞ぐ時に起きる状況です。Diffraction and transmission occur when using Spatial Audio Rooms and Portals or Spatial Audio Geometry.
ゲーム開発者は、ゲーム中でオブストラクションやオクルージョンの条件がおきる可能性のあるジオメトリをプログラミングします。Wwiseはオブストラクションやオクルージョンのレベルを計算しません。物理的な計算をゲーム側で行い、その結果を以下の関数に送ります: SetObjectObstructionAndOcclusion() .
![[注釈]](/images/2025.1.0_8897/?source=Help&id=note.png) | 注釈 |
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オブストラクションやオクルージョンの設定を環境エフェクトと併行して使うことで、サウンドのプロパティをサウンドソースの位置に応じてダイナミックに変更できます。詳しくは「Understanding sends」を参照。 |
For more information about how developers program obstruction and occlusion, refer to the Obstruction and Occlusion with Game-defined Auxiliary Sends section in the Wwise SDK documentation.
For more information about diffraction and transmission, refer to the Rooms and Portals Overview and Using the Geometry API for Simulating Diffraction and Transmission sections in the Wwise SDK documentation.
In Wwise, you can define platform-specific volume, LPF, HPF, and DSF curves to apply to sound objects when they are affected by obstruction, occlusion, diffraction, and transmission during gameplay. The values you define are relative and are accumulated with any values already applied to the game object. Volumes and DSF values are accumulated through addition, while LPF and HPF values are accumulated by retaining the highest value.
To define the environmental settings for your project:
Open the Project Settings dialog by doing one of the following:
メニューバーで、Project > Project Settingsをクリックする。
[Shift]+[K]を押す。
Switch to the Environmental Curves tab.
Within the Project Environmental Curves group, click on the "..." button to choose an attenuation ShareSet to be used at the project level. A ShareSet can be used both at the project level and on an individual sound.
注釈 To create a new ShareSet for the project environmental curves, add it in the 「ShareSetsタブ」 of the Project Explorer first.
To modify the environmental curves, double-click on the attenuation ShareSet selector to open the corresponding 「Attenuation Editor」.
注釈 Although the ShareSet contains distance curves, they aren't used at the project level.
Curves set to Use Project Obstruction, Occlusion, Diffraction, or Transmission, are treated as set to None.
完了後に、OKをクリックする。
The Project Settings dialog closes and the chosen attenuation ShareSet will be used for your project.
注釈 It is possible to open the chosen attenuation ShareSet from the 「ShareSetsタブ」 of the Project Explorer later to apply changes to the curves. Live editing is possible.
これらのカーブの適用を外したりサウンドごとにカスタムカーブを作成したりすることもできます。Refer to 「Applying attenuation」 and its subsections to see how this is done.