In 3D printing, the file is usually generated by CAD, which is then later processed by CAM, creating the CAD/CAM system. There is no representation of color or texture. As tessellation covers the surface only, the files only encode for surface geometry. In STL files, the tiles used are triangles (called facets) which cover the surface of the 2D shape. Tessellation is a process of tiling a surface of an object with geometric shapes. STL files store information about 3D models using tessellation. When it comes to 3D printing, the STL file format is the most commonly used format. What is an STL file? File formats encode for information in order to store it in a computer.
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