The pattern is raised above the background and does not separate from the background. It floats in a three-dimensional shape on the substrate and can be divided into two types according to the height of the protrusion: shallow relief and deep relief. A relief that only presents a very thin layer of object patterns on the background and requires the use of abstract lines and other expressive methods is called shallow relief; A deep relief is a type of sculpture that rises high in the background and resembles the actual object. In practical applications, deep relief and shallow relief are generally not used separately, and it is common to combine deep with shallow and shallow with deep.

A carving method in which the pattern is above or below the background and is on the same plane. When the pattern is below the background, it is engraved in yin, and when the pattern is above the background, it is engraved in yang. But regardless of whether it is engraved in yin or yang, all the patterns are at the same height as the surface of the carved component

A three-dimensional carving form in which the pattern is completely separated from the background and can be independently formed in any direction, similar to sculpture. The theme range of circular sculpture is very wide, from characters, animals, plants, and so on. The works carved with circular carvings are highly three-dimensional, vivid, realistic, and lifelike.