Shallow relief has a low rise, a large compression of shape, a strong sense of plane, and is closer to the form of painting to a greater extent. It does not rely mainly on physical space to create space effects, but uses more painting techniques or perspective, illusion and other processing methods to create more abstract compression space, which is conducive to strengthening the dependency of relief suitable for the carrier. The ancient Assyrians of Mesopotamia were probably the artists who were best at performing art by this means. In a series of "Assyrian Hunting Pictures", they used the technique of bas relief very well to express the lively artistic image with a sense of rhythm and rhythm, and to show the inner feelings of the characters and animals with complex dynamics. The selection of the compression degree of relief space usually takes into account the function, theme, environmental location, light and other factors of the performance object, of which the environment and light factors play a decisive role. Excellent sculptors can always handle these relationships well, so that the works can achieve good visual effects.

At present, most of the most influential sculptures in China and the West are made of copper. For example, Rodin's "The Thinker", "The Bronze Age", and "The Statue of Liberty", the world's top sculptures are mostly made of copper. The lines are suitable for sculpture because of the texture, plasticity, unlimited specifications, and rich color texture of copper, which are also jade sculptures The effect that wood carving and stone carving can't achieve is that jade carving can only make very small works because of the limitation of materials. Because of the limitation of wood carving technology, there is no precedent for large outdoor sculptures. The inheritor, whose bronze carving has opened a new chapter in the 5000 year history of copper.

Most of the jades mentioned in daily life refer to nephrite, and there are many kinds of nephrite products. Generally, they refer to white sheepskin jade, white jade, topaz, purple jade, black jade, jasper, sapphire, ruby and northeast Xiuyu produced in Xinjiang. In the jade carving, the white jade with sheepskin is fine in texture and strong in luster, as white as sheepskin, which can be called "the king of nephrite" and "the crown of white jade". In addition, Nanyang jade, Lantian jade, Hotan jade, agate, crystal, coral, turquoise, lapis lazuli, etc., all belong to the category of nephrite. Later, due to the opening of the Silk Road, the jade produced in Hotan, Xinjiang, was unanimously recognized and began to play a leading role in the processing of royal, official and folk jade. Nephrite gradually evolved into a synonym for hotan jade.

The dough figurines are commonly known as dough figurines, gift buns, flower cakes and dough figurines. It uses glutinous rice flour as the main material, mixed into different colors, and uses hands and simple tools, Sanya Stone sculpture Create various vivid images. In the old society, the dough figuring artists "just make a living and walk around in tears", carrying suitcases, walking around villages and towns, and working in the streets, are deeply loved by the masses. However, their works are regarded as a gadget and cannot be put on the stage of elegance. Today, recommend Stone sculpture As a precious intangible cultural heritage, dough sculpture art is valued, and gadgets have also entered the art palace. The dough kneader takes materials at will according to his needs. After several times of kneading, rubbing, rubbing, and lifting, he uses a small bamboo knife to skillfully place, cut, carve, scratch, shape his body, hands, and head, and put on hair ornaments and clothes. In a moment, the vivid artistic image will be released.

Wood carving is a kind of sculpture, which is often called "folk craft" in our country. Wood carving can be divided into three categories: three-dimensional round carving, root carving and relief carving. Wood carving is a kind of work separated from carpentry, which is classified as "fine carpentry" in our country. Folk art varieties classified by carving materials. Generally, the tree species with fine and tough texture and not easy to deform are selected, such as nanmu, red sandalwood, camphor wood, cypress, ginkgo, agarwood, mahogany, longan, etc. The tree root carving art in natural form is called "tree root carving". Wood carving has round carving, relief carving, engraving or several techniques. Some are also painted to protect wood and beautify it. Generally speaking, tools for wood carving creation, such as saws, wood files, chisels, carving knives, flat shovels, axes, wood drills, wood hammers, planes, etc., can be used for root carving creation. In addition, you also need basic tools such as scissors (scissors for pruning), knives, brushes, sandpaper (cloth), coarse and fine cloth, cotton yarn, rope, etc. During special processing, such as fire roasting, steaming, and insect prevention, some tools are also needed, which can be used in general families instead of other tools.