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D3DXQuaternionConjugate function

Returns the conjugate of a quaternion.

Syntax


D3DXQUATERNION* D3DXQuaternionConjugate(
  _Inout_  D3DXQUATERNION *pOut,
  _In_     const D3DXQUATERNION *pQ
);

Parameters

pOut [in, out]

Type: D3DXQUATERNION*

Pointer to the D3DXQUATERNION structure that is the result of the operation.

pQ [in]

Type: const D3DXQUATERNION*

Pointer to the source D3DXQUATERNION structure.

Return value

Type: D3DXQUATERNION*

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.

Use D3DXQuaternionNormalize for any quaternion input that is not already normalized.

Requirements

Header

D3dx9math.h

Library

D3dx9.lib

See also

D3DXQuaternionInverse

 

 

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