Three-Dimensional Graphics Primitives—Wolfram Language Documentation

One of the most powerful aspects of graphics in the Wolfram System is the availability of three-dimensional as well as two-dimensional graphics primitives. By combining three-dimensional graphics primitives, you can represent and render three-dimensional objects in the Wolfram System. Three-dimensional graphics elements. Every time you evaluate rcoord, it generates a random coordinate in three dimensions.

Source: Three-Dimensional Graphics Primitives—Wolfram Language Documentation