Take the drawing of mature characters as an example.
Step one: sketch.
1, determine the head type. The hypotenuse head is a shape with both positive and positive features. One side is more like the front, and the other side is more like the front. Please imagine the three-dimensional structure of this shape by combining the front and front pictures.
2. Draw a crosshair in the direction of nasal midline and horizontal midline. Pay attention to the fact that both lines are curved, and you must draw a three-dimensional picture.
3, eyebrow eye frame. Similarly, the left and right sides are asymmetrical, and the downward line should also be bent. The side near it must be longer, depending on the angle of the head.
4, line of sight and ears, cheek line, ear line. The line of sight is similar to otolaryngology and horizontal midline; The cheek line is similar to the forehead and extends from the vertical line of the eyebrow eye frame. The plane formed by this line and the facial contour line on the other side of the nasal midline is the frontal face; The position of the ear midline is inferred from the position of the cheek line and the back line.
Step two:
1, facial contour line. On one side, draw from the eyebrow line (the front cheekbones protrude and the mouth contracts), and on the other side, only the otorhino-nasal line (more similar to the front mandibular contour, but pay attention to the change of radian) is needed.
2, eyes, eyebrows. If the inner corner of one eye is close to the nasal midline, the other eye should still pay attention to the relationship of "five eyes" and keep the distance between the two eyes; One eyebrow is drawn directly to the center of the eyebrow, and the other eyebrow is broken, but the extension line also converges to the center of the eyebrow.
3. Nose, mouth and ears. The starting point and the ending point of the nose are located at the midline of the nose, which is a dotted line. Usually the starting point and the ending point are the intersection of the line of sight and the midline of the nose, and the tip of the nose is on the plane of the otolaryngology line. Pay attention to the distance of the broken line and the angle of the face, and don't fold too far; The mouth is asymmetric, and the length of both sides of the nasal midline corresponds to the length of both sides of the nasal midline; Ears have both front and side features.
4. Hair traces and hair contours. Please pay attention to the inflection point of the hair on one side of the cheek line to highlight the three-dimensional sense of the face.