D3DXQuaternionConjugate
Microsoft DirectX 9.0 SDK Update (October 2004)

D3DXQuaternionConjugate Function


Returns the conjugate of a quaternion.

Syntax

D3DXQUATERNION *D3DXQuaternionConjugate(      

    D3DXQUATERNION *pOut,     CONST D3DXQUATERNION *pQ );

Parameters

pOut
[in, out] Pointer to the D3DXQUATERNION structure that is the result of the operation.
pQ
[in] Pointer to the source D3DXQUATERNION structure.

Return Value

Pointer to a D3DXQUATERNION structure that is the conjugate of the quaternion.



Remarks

Given a quaternion (x, y, z, w), the D3DXQuaternionConjugate function will return the quaternion (-x, -y, -z, w).

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXQuaternionConjugate function can be used as a parameter for another function.

Function Information

Headerd3dx9math.h
Import libraryd3dx9.lib
Minimum operating systems Windows 98

See Also

D3DXQuaternionInverse


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