tesselation
Tesselation means mosaic work in German, in image processing it is also called parquetization, paving or tiling.
The tessellation technique is supported by graphics programs such as DirectX and divides two-dimensional surfaces into many polygons lined up without gaps. There should be no space between the polygons and the polygon shape should be as simple as possible so that the detailed surfaces can be calculated more efficiently by the graphics processors.
The polygons of the tessellation do not necessarily have to have identical shapes and sizes, but can also be non-uniform. The method can also be applied to 3D models.