This text describes the concept of technical drawing of faces, particularly focusing on how the oval shape and perspective lines influence the perceived curves when observing a head. It highlights the importance of understanding the position of the eyes in relation to horizontal lines to predict how curves will appear in different perspectives. The passage also introduces a chapter on the proportional positioning of facial features, emphasizing natural and accidental viewing angles.
Technical Facial Drawing
The whole plan of the Oval is, whether it is placed in one or the other of the mentioned Lines, when the Head is seen, tilting or bending, forward or backward, or even in both these movements simultaneously, then the Line of the Oval, and that of the perspective view, will appear completely curved, the first according to the direction of the Oval, and the other will make an arc, in the manner as shown in examples 8. 9. 10. 11: and will be shown in more detail in our facial layout. One should further note about the mentioned arc of the perspective view that if the Eye of the Observer is below the Horizontal Line, or if the Head is moved into that Position, then the arc will appear to curve upwards. See additional examples in 10. and 11. Similarly, if the Eye is above the mentioned Line, then the arc will appear to curve downward; which is clearly seen in examples 8. 9. This Exercise, in our opinion, can indeed be called Perspective of Features.
VII. CHAPTER
Of the Proportional Facial Position, according to the Natural and Accidental View.
In order to arrive at the indication of the Lineaments or Relationships, according to which the Parts