What is texture and how to express it?

Through certain means of expression, the created images show the inherent physical characteristics of various objects, such as hardness, lightness, thickness and roughness. Photographers use modeling methods such as light, color, line, light and shade to make the images not only similar or close to the original characters or scenery, but also convey the different characteristics of skin, clothing, furniture and utensils as material attributes in details. For example, skin texture can show people's age, occupation, experience, especially their temperament. Photosensitive characteristics of film (especially tolerance, granularity and color sensitivity, etc. ), the change of color temperature and brightness of lighting source, the accuracy of photographic exposure and the color tone restoration during development and printing are all factors that affect the accurate expression of texture. In color photography, the errors of light distribution and color correction often affect the performance of people, scenery and objects. Visual or tactile sense of the characteristics of different states of matter (such as solid, liquid and gas). In plastic arts, grasping the realism of different objects with different skills is called texture. The natural characteristics of different substances are called natural textures, such as air, water, rocks, bamboo, etc. The expression after artificial treatment is called artificial texture, such as brick, ceramic, glass, cloth, plastic and so on. Different textures give people a variety of feelings such as softness, truthfulness, smoothness, tenacity, transparency and turbidity. Chinese painting takes eighteen strokes of figure painting and various strokes of landscape painting as a very effective means to express the texture of objects. However, due to different kinds of paintings, oil paintings have different methods of expressing texture. It uses specific techniques such as thin or thick strokes and knife scraping to express texture factors such as light and shadow, color, texture and texture, and pursues the effect of forcing Xiao. Sculpture, on the other hand, attaches importance to the natural characteristics of materials such as hardness, color and structure, and processes them by means of chiseling, carving, molding and grinding, so as to establish a medium between the natural texture beauty of pure materials and the artificial texture beauty.