Audio Native Audio Plugin's UnityAudioEffectDefinitionFlags_NeedsSpatializerData

Hi!

Recently, I've been trying to upgrade my AudioPluginInterface.h to the latest version, and I realized that a new parameter, "UnityAudioEffectDefinitionFlags_NeedsSpatializerData", is added into the definition struct.

According to comments below the param, I guessed it is used for a normal native mixer plugin which needs spatializer data. However, there is no information about how Unity sends multiple audio sources' spatializer data to the mixer plugin's process callback.

How can I retrieve each source's spatializer data?

Thanks
Wilson