DS3DBUFFER

The DS3DBUFFER structure contains all information necessary to uniquely describe the location, orientation, and motion of a 3D sound buffer. This structure is used with the IDirectSound3DBuffer8::GetAllParameters and IDirectSound3DBuffer8::SetAllParameters methods.

typedef struct DS3DBUFFER {
    DWORD dwSize;
    D3DVECTOR vPosition;
    D3DVECTOR vVelocity;
    DWORD dwInsideConeAngle;
    DWORD dwOutsideConeAngle;
    D3DVECTOR vConeOrientation;
    LONG lConeOutsideVolume;
    D3DVALUE flMinDistance;
    D3DVALUE flMaxDistance;
    DWORD dwMode;
} DS3DBUFFER;

Members

dwSize

Size of the structure, in bytes. This member must be initialized before the structure is used.

vPosition

A D3DVECTOR structure that describes the current position of the 3D sound buffer.

vVelocity

A D3DVECTOR structure that describes the current velocity of the 3D sound buffer.

dwInsideConeAngle

The angle of the inside sound projection cone.

dwOutsideConeAngle

The angle of the outside sound projection cone.

vConeOrientation

A D3DVECTOR structure that describes the current orientation of this 3D buffer's sound projection cone.

lConeOutsideVolume

The cone outside volume.

flMinDistance

The minimum distance.

flMaxDistance

The maximum distance.

dwMode

The 3D sound processing mode to be set. This value must be one of the values shown in the following table.

Value	Description
DS3DMODE_DISABLE	3D sound processing is disabled. The sound will appear to originate from the center of the listener's head.
DS3DMODE_HEADRELATIVE	Sound parameters (position, velocity, and orientation) are relative to the listener's parameters. In this mode, the absolute parameters of the sound are updated automatically as the listener's parameters change, so that the relative parameters remain constant. In other words, the sound moves with the listener.
DS3DMODE_NORMAL	Default. The parameters of the sound are relative to world space.

Requirements

Header: Declared in Dsound.h.

See Also

DirectSound 3D Buffers