Set the obstruction and occlusion value for a portal that has been registered with Spatial Audio. Portal obstruction simulates objects that block the direct sound path between the portal and the listener, but allows indirect sound to pass around the obstacle. For example, use portal obstruction when a piece of furniture is blocking the line of sight of the portal opening. Portal obstruction is applied on the connection between the emitter and the listener, and only affects the dry signal path. Portal occlusion simulates a complete blockage of both the direct and indirect sound through a portal. For example, use portal occlusion for opening or closing a door or window. Portal occlusion is applied on the connection between the emitter and the first room in the chain, as well as the connection between the emitter and listener. Portal occlusion affects both the dry and wet (reverberant) signal paths. To apply detailed obstruction to specific sound paths but not others, use AK::SpatialAudio::SetGameObjectToPortalObstruction and AK::SpatialAudio::SetPortalToPortalObstruction. To apply occlusion and obstruction to the direct line of sight between the emitter and listener use AK::SoundEngine::SetObjectObstructionAndOcclusion.
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| in_PortalID | Portal ID. |
| in_fObstruction | Obstruction value. Valid range 0.f-1.f |
| in_fOcclusion | Occlusion value. Valid range 0.f-1.f |