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The setOrientation() method of the AudioListener interface defines the orientation of the listener.
It consists of two direction vectors:
- The front vector, defined by the three unitless parameters
x,yandz, describes the direction of the face of the listener, that is the direction the nose of the person is pointing towards. The front vector's default value is(0, 0, -1). - The up vector, defined by three unitless parameters
xUp,yUpandzUp, describes the direction of the top of the listener's head. The up vector's default value is(0, 1, 0).
The two vectors must be separated by an angle of 90° — in linear analysis terms, they must be perpendicular to each other.