pupilCenter_0 = (int(round(info.gaze_direc[0][0]))>>4, int(round(info.gaze_direc[0][1]))>>4)
eyeCorner_0 = (int(round(info.landmark_2d[39][0]))>>4, int(round(info.landmark_2d[39][1]))>>4)
eyeVector_0 = (pupilCenter_0[0] - eyeCorner_0[0], pupilCenter_0[1] - eyeCorner_0[1])

pupilCenter_1 = (int(round(info.gaze_direc[1][0]))>>4, int(round(info.gaze_direc[1][1]))>>4)
eyeCorner_1 = (int(round(info.landmark_2d[42][0]))>>4, int(round(info.landmark_2d[42][1]))>>4)
eyeVector_1 = (pupilCenter_1[0] - eyeCorner_1[0], pupilCenter_1[1] - eyeCorner_1[1])