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D3DXQuaternionRotationMatrix function

Builds a quaternion from a rotation matrix.

Syntax


D3DXQUATERNION* D3DXQuaternionRotationMatrix(
  _Inout_  D3DXQUATERNION *pOut,
  _In_     const D3DXMATRIX *pM
);

Parameters

pOut [in, out]

Type: D3DXQUATERNION*

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

pM [in]

Type: const D3DXMATRIX*

Pointer to the source D3DXMATRIX structure.

Return value

Type: D3DXQUATERNION*

Pointer to the D3DXQUATERNION structure built from a rotation matrix.

Remarks

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXQuaternionRotationMatrix 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

D3DXQuaternionRotationAxis
D3DXQuaternionRotationYawPitchRoll

 

 

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