public DirectionWidget() { m_fRadius = 1.0f; m_vDefaultDir = new XMFloat3(0, 1, 0); m_vCurrentDir = m_vDefaultDir; m_nRotateMask = SdkCameraMouseKeys.RightButton; m_mView = XMMatrix.Identity; m_mRot = XMMatrix.Identity; m_mRotSnapshot = XMMatrix.Identity; m_ArcBall = new SdkArcBall(); }