AudioListener

AudioListener is a helper object derived from X3DAUDIO_LISTENER used by SoundEffectInstance's Apply3D method.

Header

#include <Audio.h>

The default constructor creates a listener located at 0,0,0 facing +z and an up vector of +y.

In addition to setting the members of X3DAUDIO_LISTENER directly, these helper functions are provided:

SetPosition (FXVMECTOR) or (XMFLOAT3): Sets the Position of the listener.
SetVelocity (FXMVECTOR) or (XMFLOAT3): Sets the Velocity of the listener.
SetOrientation (FXMVECTOR forward, FXVMECTOR up) or (XMFLOAT3 forward, XMFLOAT3 up)
SetOrientationFromQuaternion ( FXMVECTOR ): Sets the OrientFront/OrientTop of the listener.
Update ( FXMVECTOR newPos, XMVECTOR upDir, float dt ): Computes a direction and velocity for the listener based on the existing Position and the newPos, updating the OrientFront/OrientTop to match, and then setting the Position to the newPos. If dt is 0, the update is skipped.

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