Adjusting the Angle and Orientation of the Face
The face you have imported may not be facing directly forward. In this case, adjust the angle of the face slightly using the Roll X-Z tool. Drag the mask left and right or up and down to match the mask to the angle of the face in the photo.
The other tools below are:
Home: reset the position and angle of the 3d contour.
Zoom: adjust the scale of the 3d contour.
Pan: move of the 3d contour.
Roll X-Y: roll the 3d contour.
Click the next button to proceed to the next stage, Adjusting feature points and contours.