cam_pos      = [-0.114358, 1.23045, 1.29344]';
cam_dir      = [0.608832, -0.0829706, -0.788948]';
cam_up       = [-0.447111, 0.785622, -0.427656]';
cam_lookat   = [0, 0, 1]';
cam_sky      = [0, 1, 0]';
cam_right    = [-0.871546, -0.815447, -0.586816]';
cam_fpoint   = [0, 0, 1]';
cam_angle    = 90;