D3DXMatrixPerspectiveOffCenterLH ProjMatrix

akira32

How to calculate the parameters of D3DXMatrixPerspectiveOffCenterLH and let its Projection Matrix is the same as D3DXMatrixPerspectiveFovLH(&mProj, 0.5f, 1.0f, NEARPLANE, FARPLANE);

D3DXVECTOR3 m_LightPos=D3DXVECTOR3(-5.0f, 5.0f, -2.0f);

D3DXMATRIX mView, mProj;
D3DXVECTOR3 vLookatPt = D3DXVECTOR3(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 vUpVec = D3DXVECTOR3(0.0f, 1.0f, 0.0f);
D3DXMatrixLookAtLH(&mView, &m_LightPos, &vLookatPt, &vUpVec);

D3DXMatrixPerspectiveFovLH(&mProj, 0.5f, 1.0f, NEARPLANE, FARPLANE);

//D3DXMatrixPerspectiveOffCenterLH(&mProj,0, 1, -1, 0, 1, 100);