The nose consists of nasal root, bridge of nose, nose head, alar, nostril and nasolabial groove.

Nasal root: the nasal root is connected with the downward curvature of frontal bone near the lacrimal caruncle, which is the narrowest place and the most urgent turning point. The turning point and contrast between it and the eyes are obvious, but we can't overemphasize it. We should only explain it near the eye structure to avoid weakening the performance of the eye.

Bridge of the nose: the bridge of the nose should pay attention to the morphological and structural changes in the middle and sides and the connection with its adjacent parts. The side of the nose protrudes slightly, just in the area where the bridge of the nose extends outward. Therefore, the alar should show the shape change of the side and the depth change of the joint between the alar side and the dark side after mastering the maximum light-dark dividing line.

Nasal floor: The nasal floor has obvious light and dark boundaries and reflection, which is the difficulty of expression. Pay attention to its rich light and dark and virtual and real changes. Beginners should strengthen their understanding of the structure of the nose, pay attention to the relationship between various parts, such as insertion, front and back, virtual and real, summarize the various shapes of the nose, and understand the relationship between the nasal bone block, the nose head block and the alar block.

Understanding the structure of the nose is the key to drawing a good nose.

1. You should know that all the light and shade changes on the surface of the nose are closely related to its structure. For example, the side of the bridge of the nose is slightly raised, just in the area where the bridge of the nose extends outward. Only by showing this subtle shape change can we avoid painting the gray on the side of the nose flat.

2. For the ups and downs of the midline of the nose, be sure to understand the shape of the nasal bone and plaster nose in the example. First, the bone of the bridge of the nose is slightly higher, and then the cartilage inclines downward. Therefore, the ups and downs of the midline of the nose determine that the highlights of the nose and the bridge of the nose will not be connected together, and the highlights of the nose are brighter than the bridge of the nose.

3. When expressing the alar, we should pay attention to its depth changes in the horizontal and vertical directions. If we divide the alar into different light and shade levels in the horizontal and vertical directions, the shape of the alar will "protrude".

4. The boundary line at the bottom of the left alar is not randomly drawn on the edge of the alar, but turns downward with the thickness of the alar. In addition, there is a narrow gray surface on the edge of the light receiving surface above the nose wing, which also makes the shape of the nose wing turn down naturally.

You can't think of the shape of nostril as a simple circle. When you show it, you can draw the whole shape of the nose first, and then draw the nostrils by contrast.

The law of light and shade shaping of nose

In addition to the head portrait of all sides, the nose of the subject is the most front in the space, so if you want to pull out the space, you must draw the nose very forcefully.

1. No matter what angle you look at the nose, you should summarize its shape into a simple geometric figure, and then analyze its black, white and gray relationship. As shown below, in the case of top light, the bottom of the nose is the darkest, the side is gray and the front is bright. Next, according to the internal structure of the nose, draw the faint depth changes of these faces, so that the rhythm of black, white and gray in the picture is very rich, and the sense of volume of the nose is very strong.

2. The front of the nose is the nose, so it is necessary to emphasize the relationship between Fiona Fang, depth and virtual reality of the dividing line between light and dark at the bottom of the nose. Moreover, when this boundary line reaches the alar, it cannot be directly connected with the alar edge, but should be turned down.

3. Affected by the light and the shape of the nose, there is generally a narrow gray surface between the light-receiving surface of the nose and the alar, which is the dividing line between light and shade. As a transition, this gray surface can better rotate the shape and make the shape more rounded.

Analysis on the key points of nose performance steps

1. At this angle, the outer edge of the bridge of the nose is straighter than the inner edge, and the shape of the inner edge fluctuates more obviously.

2. Gradually open the black, white and gray blocks of the nose, and the structure of the lateral bulge of the bridge of the nose can not be ignored.

3. The alar and the left alar overlap, because they are light-receiving surfaces, and the transition between them is relatively soft, so it is enough to show that the outer edge of the alar is complete.

4. The tone on the nose can be slightly brushed into a light gray tone, and then fine lines are arranged on it with a pen to show the smooth texture of the nose.

Gender characteristics of nose

Male object: Usually, a male's nose is straight with obvious turning point. The nose is square, wide and large, the shape of the alar is also square, and the alar groove is obvious. Highlights are usually summarized as small squares, indicating that muscles are tight and the sense of block surface is enhanced.

Female object: female nose is slender and delicate, with small fluctuation and soft turning. The nose is round, and the shape of the nose wing is round. The transition between light and shade is soft, and the dark reflection is strong.

Angular characteristics of nose

1) Front view angle: the bottom of nose disappears, the nose drops, and alars on both sides rises. Focus on the nose, the upper part of the nose wing and the front side of the bridge of the nose, and strengthen the changes of the light-dark boundary line in depth, realism and turning point.

2) The law of nose expression in frontal angle of view: The nose that looks up should pay attention to compressing the height of the bridge of the nose, increasing the area of the bottom of the nose, and enhancing the trapezoidal characteristics of being wide at the bottom and narrow at the top. The nose becomes bigger and rounder, and the thickness of nose head and nose wing increases.

3) The performance law of the half-angled nose: the overall width becomes narrower, and attention should be paid to the changes in the left and right parts of the nose, which are near big and far small, and near solid and far virtual. Carefully analyze the perspective changes caused by the midline of the nose, as well as the changes of the light-dark boundary on the bridge of the nose and the depth changes of the gray surface. In addition, we should pay attention to the twists and turns of the light and dark turning line at the bottom of the nose and the changes of light and dark levels.

4) The expression law of all-sided angular nose: The white, gray and black relationship between the front, side and bottom of the lateral nose is very obvious, focusing on the thickness and turning changes of the nose head and nose wing. Pay attention to the insertion, turning and treatment of the dividing lines between the nose root, the bridge of the nose and the nose head, and the bottom of the nose and people. It is difficult to grasp the connection relationship between the nasal floor, alar and oral muscles, and it needs to be carefully analyzed by block method. Pay attention to the change of reality when expressing the contour of nose edge to avoid the appearance of "iron wire line"

Second: the painting of mouth.

The mouth is made up of a person, a rabbit lip, a lower lip and a corner of the mouth.

Man: The sulcus between the nose and mouth is located at the upper part of the tubercle line of the upper lip. Pay attention when drawing, it will change with the angle of the mouth.

Mouth crack: a wavy line formed after the upper and lower lips are closed, with ups and downs, virtual reality and other changes.

Lower lip: the lower lip changes gently, and the left and right lip nodules form two microprotrusions. The lower lip can be divided into three sides horizontally and vertically. Don't copy the tone and ignore the expression.

Corner of mouth: a very important part at the junction of mouth and face. Pay attention to the light-dark relationship formed by the intersection of the corners of the mouth through the edges of the lips, which is a very important detail in the expression of the mouth.

Mouth shaping law

First of all, because of the different painting angles, the perspective of the mouth should be bounded by people. According to the perspective law, the proportional relationship between the mouth and the upper lip nodule (that is, the triangular gap between the person and the upper lip in the picture below) is drawn. This gap cannot be drawn too wide, so it must be expressed by comparing the overall width ratio of lips (the following three photos).

Secondly, when drawing lips, don't blindly emphasize the inherent color of rosy lips. Usually, the upper lip is slightly heavier than the lower lip. Furthermore, when representing the lip edge, don't hook up the outline of the lip edge, that is, don't draw the edge like a silhouette, but show more volume.

Angular characteristics of mouth

1) Face-up angle Mouth expression law: The shape of the mouth that looks up is upward arc, and attention should be paid to the distance between the two corners of the mouth and the highest point of the mouth crack and the arc of the mouth crack. The larger the viewing angle, the greater the curvature. The bright part of the upper and lower lips becomes narrower and the dark part becomes wider.

2) The expression law of the top view angle of the front face of the mouth: the shape of the mouth is downward arc at the top view angle, and the arc of the mouth crack is downward. The chin and labial groove can only be seen, or not. Focus on depicting the somatosensory and spatial sense of the upper lip quadratus and lower lip.

3) The expression law of the half-side corner: When painting the half-side corner, we should pay attention to the horizontal perspective, which is near the big and far from the small. Grasp the perspective direction of the central perspective line of the mouth, determine the size and width changes of the left and right sides of the mouth, and pay attention to the ups and downs of the central perspective line itself.

4) Full-sided angular mouth expression: In the side expression, the shape of lips needs to be full, which is helpful for sexy expression. The upturning of the upper lip and the sagging of the lower lip should be shown more clearly.

References:

/sumiaojiaocheng/3926.html (drawing nose)

(Mouth Figure) /p/3353839937