[Visual Basic] Public Sub SetRolloffFactor( _ ByVal rolloffFactor As Single _ )
[C#] public void SetRolloffFactor( floatrolloffFactor );
The rolloff factor can range from 0.0 to 10.0, where 0 is no rolloff. 1.0 is the default rolloff factor set, the value which we also experience in the real world. A value of 2 would mean twice the real-world rolloff.