Space is three-dimensional structure embossed three-dimensional shape can also be both some kind of flat shape; either attached to some kind of carrier, can be relatively independent existence. Generally, to fit the specific needs of viewpoints ornamental or decorative needs, relief carvings of relatively prominent feature is a two-dimensional or flat characteristics after compression by the body. The difference between relief and sculpture in the round, and that it is relatively flat and three-dimensional nature.
It is between the so-called compression space form a three-dimensional space has the physical space of painting and sculpture in the round-dimensional virtual space has between. Compression space limits the free development of relief space, in the background of relying on the plane, weakened flu entity carvings, and more adoption and use of perspective drawing and learning in virtual and illusion to achieve the performance objectives.
Compared with carvings, relief and more to deal with in accordance with the principles of painting space and form relationships. However, in the image of the center reflects the aesthetic pursuit, reliefs and carvings are exactly the same, except that only shows the way in the form of some kind of physical features. As one kind of sculpture, reliefs showing the general characteristics of the first sculpture that its only recourse to visual and aesthetic effects involving touch.