What's the difference between hand drawing and sketch? Thank god, help me.

Experience sketch in sketch teaching, in short, is monochrome painting. However, this is not entirely correct. After all, sketch covers too many things and solves too many problems. Sketching process is a comprehensive thinking activity that considers many problems at the same time. At present, all majors in art colleges take it as a basic course, although each major has different emphasis, such as oil painting emphasizing volume and tone, Chinese painting emphasizing lines, printmaking and design emphasizing structure. But the sketches are similar. At the same time, sketch, as an independent art category, has its unique artistic value. Of course, there are not many specialized sketch artists, most of whom are part-time. For example, masters, their drafts are already very valuable, so you don't have to distinguish between basic sketches and independent works of art, even if these sketches seem to be several strokes, the skill behind them is very good. Sometimes a random undulating line reflects the artist's profound understanding and mastery of modeling, structure, characteristics, rhythm, charm and art history, and the hardships behind it are naturally self-evident. Lu Jingui's Hand-painted Practice Tutorial (Reprinted) Preface Inscription Winter Scene (Su Shi) The lotus flower has no rain cover, and there are Ao Shuang branches in the chrysanthemum. The good scenes of the year need to be remembered, especially when they are orange, yellow and green. My methodology is more valuable than my work! One year's hard work is more than three years and six years. Foreword-the function of hand drawing 1. Creative grasp, creative concept stage, designer's grasp of the overall concept form. Exchange of ideas is a good way to communicate with customers. 3. On-site changes, some minor changes encountered in the process of construction and on-site implementation, and on-site implementation, hand painting also plays an important role. But don't stop at the level of communication with customers. The two basic abilities of designers are 1, hand-drawn drawing ability 2 and computer drawing ability. If the computer is compared to a designer, then hand-drawing is the designer's right hand. Without it, the designer is incomplete. Hand-drawing is a basic skill and artistic accomplishment of designers. First, the drawing method of hand-drawn lines is 1) (fast) The mistakes that beginners who draw straight lines are easy to make: unsmooth, inflexible, neither heavy nor heavy, and hesitant. Requirements: Express lines must be smooth, fast and stable. Method score (three points): 1. When you start writing, your wrist should not shake or move, but move with your arm (like a mechanical arm). 2. When writing, pull back and forth twice to focus the head (pen). Don't stop writing and pick up the pen at once. Go back and forth steadily twice. 2) Advantages of line shaking: The advantage of line shaking (line for sketch) is that it is easy to control the first direction and stop position. For example, drawing a long line with a fast straight line, because it is fast and easy to master the direction and length, leads to the situation that the line is inclined and there are too many heads. Shaking the thread gives people a sense of freedom, leisure and strength. Think of straight lines and wobbly lines as guitar lines. Straighten the tight line and shake it steadily, so that you can have time to think about the direction and stop position of the line when you walk. Drawing method of large, medium and small jitter lines: 1. Big shake: pen for 2 seconds, plus hand vibration. The buffeting wave is relatively large, generally 100mm, and the wave number of the wave line formed by buffeting wave is about 8, which is small and long, smooth and natural. Note: Don't try to draw a pattern (tangible and intangible, intangible and tangible). 2. Middle shaking: pen for 3 seconds, plus hand shaking. The ripples are very small. For the line with the length of 100mm, the wave number of the wave line formed by jitter is about 1 1, which is small, smooth and natural. Note: Don't try to draw a pattern (tangible and intangible, intangible and tangible). 3. Small shake: pen for 4 seconds, plus hand vibration. The swaying waves are very small. For a section of 100mm line, it is better to shake it into a wavy line with about 25 waves, and the wave number should be small and medium, which is smooth and natural. Note: Don't try to draw a pattern (tangible and intangible, intangible and tangible). 3) The difference between hand-drawn and sketched line drawing: From the perspective of ergonomics and sports anatomy, hand-drawn wrists can't move back and forth along joints, fingers can't move, elbow joints can't move without restrictions, and shoulder joints can't move. Second, hand-drawn modeling is easy for beginners to make mistakes: the perspective of the object is distorted and the painting is not like it. 1) Box concept: (This concept is very revolutionary, but it is not known who put it forward) It means that the shapes of sofas, beds and other monomers are ever-changing and varied, but no matter how complicated their shapes are, their basic shapes are summarized into a box concept, so it is necessary to understand the whole and then subdivide them step by step. Note: Change from box shape to other shape. When learning to draw a new object, first sum it up as a complete square and then divide it step by step. That is, "everything cannot be separated from Fiona Fang". 2) Monomer Diagonal Theory: Viewed from plane A, the viewpoint will be aligned with point B to form a straight line, and then contraposition stretching will be carried out according to the straight line points on both sides. 3) the theory of "elevation method": make sure to draw a big face first (that is, draw a rough outline first) and then draw something else. 4) The "line method" theory: draw the line first, seal the line first, and then draw the outside. Third, the order of hand-drawing exercises The author emphasizes gradual learning. Painting practice can be carried out in the following order, from easy to difficult. Moreover, there must be quantitative change to have qualitative change. Draw a sofa for another sofa and a grass for a tree. The "material bank" in the brain can accumulate a lot of training. Besides the teacher's urging and making plans, try to spend all your time practicing writing. People who draw well always practice hard and act consciously. 1. Draw the monomer first: such as sofa, chair and bed. 2. redraw the spatial composition: spatial combination 3. Redrawing the building: including sketch 4. Redrawing landscapes and gardens: readers should not be too rigid in this order according to their own situation. It must be clear here that "draw the shape first, draw it to a certain extent, and then practice coloring." Form (shaping, perspective, composition) is skeleton, and color (marker, colored lead) is flesh and blood. "Line draft is the key link of modeling, please increase the training volume of line draft. In fact, a good line table performance does not need to be colored, and it is already very beautiful. It is incorrect to think that the effect of painting depends only on color. This is a common mentality of beginners and must be corrected. Only shapes can be colored, and the color function is actually only an aid and does not depend entirely on it. " Tone is equally important to our architectural drawings. The use of color requires a lot of practice, as well as a good color foundation and artistic accomplishment. As long as you take it seriously, it is not difficult to master and use markers and colors well. (Emperor Wen of Sui's freehand brushwork of interior furnishings) IV. The root of the improvement of hand-drawn learning and its relationship with sketch. In fact, the roots are in sketches and colors, just like some high school students are not good at math, and how to ask the sea tactics has not improved. In fact, the roots are in primary school mathematics, and learning should be thoroughly rooted. Why do many readers paint repeatedly, or the perspective is distorted, the shape is strange, the composition is missing, and the tone is not harmonious. Because they have not gone through or only have a little systematic and strict sketch and color education training! In other words, sketching and color learning are not solid enough. In fact, people's sketches and sketches are more difficult to draw than buildings. In fact, if you have some basic conditions, you can draw by hand: (1) Art Foundation: But pure painting is not the same as hand painting. (Hand-painted) is far less demanding than pure painting, and has its own expression and language. Poor art foundation (sketch, sketch, color) is not that you can't learn hand-painting, so you can lay the foundation directly from learning hand-painting. (2) Understand and master simple perspective: perspective is the basis of indoor performance, and the "structure" of space is completely represented by correct perspective lines. Angle of view is a necessary pass, and it is also a sad pass. Generally speaking, mastering a little perspective and two perspectives has fully met the conditions of hand-drawing. Although hand-drawing and sketch are related, they are not completely and absolutely related. Painting (including pure painting) can advance by leaps and bounds, just like English learning in liberal arts. Even if you have studied junior high school English, you can read higher-level materials sporadically. Unlike science mathematics, you can only understand advanced mathematics if you have studied elementary mathematics. Painting can be done without sketching or coloring, as long as you can draw oil paintings directly, but painting well is only a problem. To draw good hand-painted shapes, draw more and practice structure sketch. To be lively and interesting, hand-painted grass and trees need constant observation and long-term tempering. Therefore, in addition to the general hand-drawing training, the author still advocates not giving up sketch and color, especially sketch, which is the basis of improvement. Sketch is exercise: the ability training of sketch, composition and modeling, and color is exercise: the ability of computer color matching and coloring. These two trainings constitute two painting abilities. My experience: 1. Don't sketch, hand-draw. Especially for coloring, you can't use sketched flat cables. 2. Only the accumulation of quantity can lead to qualitative change. So it is best to draw 5-6 sketches with half the size of A2 paper, and completely copy 2-3 books. How a person can draw a good picture, from painter to painter, from cartographer to designer, is a problem without specific conclusions. The author talked about the following and forgot to throw a brick to attract jade: