Microsoft DirectX 8.0 (C++) |
Sets the velocity of the sound source.
HRESULT SetVelocity( D3DVALUE x, D3DVALUE y, D3DVALUE z, DWORD dwApply );
If the method succeeds, the return value is DS_OK.
If the method fails, the return value may be DSERR_INVALIDPARAM.
Velocity is used only for calculating Doppler effect. It does not change the position of the buffer. For more information, see Doppler Factor.
The default unit of measurement is meters per second, but this can be changed by using the IDirectSound3DListener8::SetDistanceFactor method.
Header: Declared in dsound.h.
IDirectSound3DBuffer8::SetPosition, IDirectSound3DBuffer8::GetVelocity