Builds a matrix that rotates around the z-axis.
D3DXMATRIX* D3DXMatrixRotationZ( _Inout_ D3DXMATRIX *pOut, _In_ FLOAT Angle );
pOut [in, out]
Pointer to the D3DXMATRIX structure that is the result of the operation.
Angle of rotation, in radians. Angles are measured clockwise when viewed from the rotation axis (positive side) toward the origin.
Pointer to a D3DXMATRIX structure rotated around the z-axis.
The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXMatrixRotationZ function can be used as a parameter for another function.