Painting the starry sky with gouache, how can you draw a sense of hierarchy?

The performance of the starry sky is mainly to grasp the most basic tone, and the starry sky is a heavy blue tone. We must grasp this tone, and the darkness must be darkened. Distinguish the heaviest blue, middle tone and bright tone, and distinguish the brightness of these three colors in the whole tone. We should also pay attention to the relationship between cold and warm colors, the unified coordination and contrast of colors, and strive to be vivid and natural with reasonable expression techniques, and the sense of hierarchy will come out.

The following are the basic techniques of watercolor painting.

Mixed color

The color matching in sketch is based on the correct observation and understanding of the color relationship of objects. When mixing colors, you can't look at one piece in isolation, adjust one piece and draw one piece. We should consider the overall hue and color relationship, and decide each color from the whole. The colors of gouache sketch are not easy to connect. On the basis of clarifying the relationship between colors, try to adjust the colors of several large color blocks and prepare for redrawing. Don't be divorced from the whole, look at one piece, adjust one piece, draw one piece, and adjust one piece for another. The color of gouache painting is dark when wet, light after dry, and the wet and dry changes obviously.

1, dry painting and wet painting

Dry painting is a multi-layer painting method. Using the method of layer coating to color the dry background color does not require penetration effect, and it can be easily colored repeatedly, which is easier to master and suitable for beginners to practice. Clear physical structure and rich color levels are the specialties of dry painting.

Dry coating method can be layered coating, color masking, color collection, dry pen and other specific methods.

Coating:

That is, dry stacking, dry coloring, and colors are stacked one by one to express the object. There are different levels of coloring in the picture, some places can be done at once, and some places need to be done twice, three times or even more, but it is not advisable to count too many times to avoid losing the transparency of color. It can not be ignored that the layers of paint overlap after work, so as to predict the mixing effect of revealing the background color in advance.

Cover color:

In fact, it is also a dry stacking method, and the color area of the mask is larger. For example, several colors in the picture are not uniform enough, so we have to mask the colors once to make them uniform. If a piece of color is too warm, a layer of cool color will change its cold and warm properties. The color of the cover should be bright Bo Tu, and it should be re-paved. Generally don't write back, otherwise the color will be dirty with the background color. This method is often used in the process of coloring and the final adjustment of the picture.

Color matching:

Dry color matching means that adjacent colors are painted from their sides after drying, and there is no infiltration between color blocks. Each color itself can also be wet coated to increase variation. This method is characterized by clear outline and bright colors.

Dead pen:

Write less water and more colors, and it is easy to fly white when writing; Drawing quickly on rough paper full of water will also produce flying white. The method of dry pen is often used to show the effect of flash or softness.

Dry painting can't just write articles on the word "dry". The picture must still make people feel full of water and wet marks, so as to avoid the problem of dryness and boredom.

Wet painting can be divided into wet stacking and wet color collection.

Wet overlap:

Wet or partially brush the drawing paper, dry it and then color it, and dry it and then superimpose the color. Proper control of moisture and time will make the effect naturally mellow. Showing the rainy and foggy atmosphere and moist interest is its specialty, which is beyond the reach of some paintings.

Wet color matching:

This method is often used when the color is close to the dry end, the water color flows through, the boundary is blurred, and the transition soft color gradient is displayed. When collecting color, the water list should be used evenly, otherwise the water will rush to less places, which will easily lead to unnecessary water stains.

Watercolor painting is mostly a combination of dry painting and wet painting. The picture with wet painting as the main part is dry painting, and the picture with dry painting as the main part also has wet painting. The combination of dry and wet painting is expressive, dense and dry, and interesting.

2, the mastery of moisture

The application and mastery of water is one of the key points of watercolor techniques. Water has the characteristics of infiltration, flow and evaporation in the picture, so you should be familiar with "water-based" when painting watercolors. Giving full play to the role of water is an important factor in watercolor painting.

To master moisture, we should pay attention to time, air humidity and water absorption of drawing paper.

Time problem:

The time of wet coating should be well grasped. If the colors overlap too early and too wet, it is easy to lose their proper shape. If it is too late, the background color will be dry, watercolor will not penetrate easily, and the connection will be stiff. Generally, when overlapping colors, the water content of the pen should be less and the colors should be more, which is convenient to grasp the modeling and make it penetrate. If the overlapping color is light, wait until the background color is slightly dry before applying.

Dry humidity of air:

Draw a few watercolors, and you will realize that the water dries slowly indoors, and the water evaporates more slowly when painting outdoors in wet, rainy and foggy weather. In this case, draw less water; In a dry climate, water evaporates quickly, so use more water to speed up the painting of color matching.

Water absorption of drawing paper:

According to the water absorption speed of paper, master the water consumption accordingly. When the water absorption is slow, the water can be less, the paper is softer and absorbs water faster, so it is necessary to increase the water. In addition, large-scale rendering of halo colors, such as sky, ground, still life, people background, etc., should use more water, and should use all water; Use less water to describe parts and details.

3. "Blank" method

Compared with the techniques of oil painting and gouache painting, the most prominent feature of watercolor technique is the method of "leaving blank". Some light and white parts need to be "left blank" when drawing dark colors. The transparency of watercolor pigments determines this painting technique. Light color cannot cover dark color, unlike gouache and oil painting, which can be covered with light color and white powder. Pay attention to watercolor works, and you will find that almost every one uses the technique of "leaving blank".

Proper and accurate blank or light color will enhance the vividness and expressiveness of the picture; On the other hand, improper blank space will easily lead to trivial and messy pictures. Mark the blank with a pencil before coloring. When coloring, you should skillfully omit the key details, that is, dots and faces. In addition, where the contrast colors are adjacent, the other side should be empty and colored separately to maintain their uniqueness. Some beginners leave unnecessary empty shapes and then paint colors along the outline. Some people leave empty places dead, too rigid, and lose vitality along the outline. Empty is accurate and vivid, and it is the embodiment of skilled skills. Repeated practice in practice makes perfect.

4, brushwork

The brushwork is the method of using a pen. The use of pens is closely related to the use of water and color. When painting, each stroke contains water and color, or water is less colorful, or color is more than water, or water color is moderate. When the pen moves on the paper, there will be traces, which is what we usually call "brush strokes" You can see the brushwork in painting from the brush strokes. The thickness of the drawing paper, the hardness of the brush and the speed of the brush strokes vary greatly according to the structure of the object, which is a bit wired, rigid and thirsty. Starting from the shape and color of the object, use the pen properly to enhance the plasticity and vividness of the picture. Watercolor painting has a large painting area, and the brush strokes are hidden by the infiltration of water. It feels subtle to reset the color strokes when wet, and the strokes are clearly visible when painting is dry. In the process of coloring, you can't leave the pen for a moment. The closer you get to finishing using the pen, the more important it is, and its brushstrokes are no longer covered and exposed to the viewer.

Special techniques of watercolor painting

That is, using special tools, materials and means to produce special effects.

Scraper method:

Scraping in coloring order with a pencil sharpener is a method to destroy paper and produce special effects.

Before coloring, scrape the paper with a knife, light or heavy, wide or narrow, so that part of the paper is destroyed, and after coloring, an image heavier than the surrounding color appears. This is because the shaving area has strong color absorption ability, so it becomes heavier. Blurred images or dimly discernible details showing virtual distance are better. Scrape with a knife when coloring, too much water will produce heavier knife marks, and too little water will produce brighter knife marks when scraping off floating colors. This method can be used to deal with related details. In addition, after the color is completely dry, scratch it on the white paper with a knife, or scratch it lightly or intermittently, showing bright lines, bright spots or smaller bright faces, flashing spots and snowflakes falling in winter. These are illusory, natural and interesting.