Gypsum sketch steps

1, prepare before painting, observe and think.

Comprehensive observation, experience image characteristics, choose painting angle, and analyze the beauty of gypsum image; Analyze its basic structural state and predict the picture effect. Including composition, physical beauty, light color and expression method.

The first and most important step in plastering gypsum is shaping. For gypsum, the shape is not allowed to make mistakes. Especially some classic paintings like One Pirate and David, the teacher can tell at a glance if they are wrong, so we must compare the shapes repeatedly to make as few mistakes as possible. After grasping the overall modeling, we should look for the characteristics of gypsum, cut it with some straight lines when modeling, and draw it carefully and patiently with repeated strokes.

2. Composition, proportion and basic modeling

In order to reasonably arrange and determine the approximate position of gypsum image in the picture, the morphological composition and dynamic performance of gypsum image should be considered. Considering the arrangement of space and the position of visual center, the positions of upper, lower, left and right edges are determined. There is a difference between light and shadow and structure, and the background is important or not.

Use the auxiliary line to find out the proportion and dynamic relationship of the head, neck, chest and base, determine the position of the five senses (the perspective of the five senses should be correct) and master the dynamic characteristics.

Check whether the center of gravity is stable. Finding the midline is conducive to determining the position of the five senses and grasping the dynamic potential of the head. Find out the plane basic shape with the same size as the head, neck and chest, and exaggerate the basic shape characteristics of each part according to the feeling to grasp the big relationship. Draw a long straight line, use a loose pen, follow your feelings, don't be timid, and don't draw too heavy and too dead. Keep the picture flexible for further adjustment and deepening in the future.

3. Basic structure

Consciously determine the positions of bone points and high points of the main structure of plaster statues, find the turning point, and understand each shape with the concept of geometric shapes; Pay attention to find the correct position of the center line, draw both sides at the same time, and the perspective should be accurate; When drawing each point or shape, we should also take care of the surrounding shapes and find the relationship between them.

At this stage, we should start from the whole and find the big relationship, and the small things can be solved in the in-depth stage; In particular, the hair and beard should be grouped, and the relationship between them should be clarified, otherwise it will fall into the local area prematurely. The lines used in sketch should also be light, imaginary, solid and rhythmic, so as to produce a harmonious and unified overall effect. When sketching, try to draw the correct body structure according to your own feelings. If we rely too much on comparison and measurement, we will lose our sensitivity and have adverse consequences.

4. Draw a rough relationship between light and shade

At this stage, it is necessary to distinguish the dark side, and all the dark and bright sides should be lightly coated with a layer of gray, and the background that is in obvious contrast with gypsum white should also be lightly coated with a layer of gray. At this time, the gypsum image will initially present a three-dimensional shape and light sense, and the space will also be presented. It can be bright or dark, but the lines should be arranged closely, and you can't scribble.

At this stage, the colors on the screen can be divided into several levels according to the order from heavy to light, and the screen can be drawn from the heaviest place. At this time, it is still in the general stage of light and shade, and every part of the painting starts from the dividing line of light and shade to the projection edge of the character. If there is a slight change, don't go into the local area prematurely, especially the reflection of the dark side must stay in the dark side, and the gray side and the bright side can be ignored for the time being.

5, in-depth analysis and repeated adjustment

Gradually enrich the details, find the turning point of each modeling, make the modeling structure more compact, and make the modeling relationship of head, neck and shoulder more clear and specific. After the tone order is arranged, you can go deeper and deeper again. Add a layer every time you draw, which is rich in content and makes your body feel stronger and stronger. Gray and bright tones gradually appear until they are finished.

In the in-depth stage, we should cherish the tone of each stroke, and each stroke should show the structure and turning point of the form. It is necessary to strengthen the knowledge and understanding of the body structure, and use the modeling means of sketch and the contrast between light and shade and reality to express what you want to express subjectively, rather than simply copying the real thing.

When painting, always look at your own paintings with some ideas. Such as volume, thickness, light sense, integrity, space sense, priority, rhythm and so on. , especially the concept of the whole can't be forgotten. Every once in a while, you have to stand up and look at your picture from a distance, so that you can find the problem and correct it in time. Avoid problems such as gray, flowers, dirty, greasy and floating. Students who have a good foundation and strong overall grasp ability can adopt the method of partial promotion after light and shade division, and reach the goal in one step. )

6. Return to the whole and summarize the completion.

In the process of going into details, there will inevitably be some disadvantages such as fragments, gray, flowers and so on. Therefore, in the end, it is necessary to re-adjust the big relationship to make the overall shape more clear and prominent. Individual bodies are in their places, and the effects of black and white and virtual reality are more intense. The picture should be clearly defined, the center should be prominent, the shape should be three-dimensional and coordinated.

Part and whole are contradictions that will be encountered at all times in the process of painting. The purpose of local description is to highlight the theme, and every time we go into details, we must have a deeper understanding of the whole. Dealing with the relationship between the part and the whole is a sign to distinguish the level of shaping ability.

There are many details in painting plaster statues, but it is not the drastic feeling that many people think. If you think about it carefully, you can paint for a long time, and many teachers can immerse themselves in it, slowly find the shape, grind the texture, and study how to do the painting well. This is a very in-depth course. If you have time, I suggest you practice, which is also very helpful for your sketch. Students in Grade One and Grade Two should practice plaster casts. Lay a good foundation and benefit for life!