Ошибка с выделением объектов

bool Pick(IDirect3DDevice9 *p3dDevice, D3DXMATRIX  viewMatrix, ID3DXMesh *pMesh)
{
    HRESULT hr;
    D3DXVECTOR3 vPickRayDir;
    D3DXVECTOR3 vPickRayOrig;
 
    int m_dwNumIntersections = 0;
 
    // Get the pick ray from the mouse position
        D3DXMATRIXA16 matProj;
        p3dDevice->GetTransform( D3DTS_PROJECTION, &matProj );
 
        //I have program cursor
        POINT ptCursor;
         ptCursor.x=iWidth/2;
         ptCursor.y=iHeight/2;
 
        // Compute the vector of the pick ray in screen space
        D3DXVECTOR3 v;
        v.x =  ( ( ( 2.0f * ptCursor.x ) / iWidth  ) - 1 ) / matProj._11;
        v.y = -( ( ( 2.0f * ptCursor.y ) / iHeight ) - 1 ) / matProj._22;
        v.z =  1.0f;
 
        // Get the inverse view matrix
        D3DXMATRIXA16 m;
       // p3dDevice->GetTransform( D3DTS_VIEW, &matView );
        D3DXMatrixInverse( &m, NULL, &viewMatrix );
 
        // Transform the screen space pick ray into 3D space
        vPickRayDir.x  = v.x*m._11 + v.y*m._21 + v.z*m._31;
        vPickRayDir.y  = v.x*m._12 + v.y*m._22 + v.z*m._32;
        vPickRayDir.z  = v.x*m._13 + v.y*m._23 + v.z*m._33;
        vPickRayOrig.x = m._41;
        vPickRayOrig.y = m._42;
        vPickRayOrig.z = m._43;
 
        // Collect only the closest intersection
        BOOL bHit;
        DWORD dwFace;
        FLOAT fBary1, fBary2, fDist;
        D3DXIntersect(pMesh, &vPickRayOrig, &vPickRayDir, &bHit, &dwFace, &fBary1, &fBary2, &fDist,
                    NULL, NULL);
        if( bHit )
         {
          m_dwNumIntersections = 1;
          //SELECT
          return true;
         }
    return false;
}
 
-------------------
 
 
            if (Pick(lp_D3DDevice, matView, g_pMesh[0]) == true) lp_D3DFont -> DrawText( NULL, "Helloeee", -1, &FontPosition, DT_LEFT, 0xFFFFFFFF );