tesselation is hard and craceful

This is a new word ,I just learnt it ~ A tessellation is the tiling of a plane using one or more geometric shapes, called tiles, with no overlaps and no gaps. Inmathematics, tessellations can be generalized to higher dimensions.

Some special kinds of tessellations include regular, with tiles all of the same shape; semi-regular, with tiles of more than one shape; and aperiodic tilings, which use tiles that cannot form a repeating pattern. The patterns formed by periodic tilings can be categorized into 17 wallpaper groups.

In computer graphics, the term "tessellation" is used to describe the organization of information needed to render to give the appearance of the surfaces of realistic three-dimensional objects