About Materials Libraries

The Autodesk library, with more than 700 materials and 1000 textures, is included
with the product. You can copy Autodesk materials into the drawing, and edit and save
them to your own library. Use the Materials Browser to navigate and manage both Autodesk
and user-defined materials.

There are three types of libraries:

• Autodesk Library. Contains predefined materials for use by Autodesk applications that support materials.
  Although you cannot edit the Autodesk library, you can use these materials as a basis
  for customized materials that you can save in the user library.
• User Library. Contains materials that you can share with other drawings. You can copy, move, rename,
  or delete user libraries. You can access and open existing user libraries created
  locally or on a network and add them to your defined libraries in the Materials Browser.
  The libraries are stored in a single document and can be shared with other users.
  However, any custom texture files used by the materials in a user library must be
  manually bundled with the user library.
• Document Materials. Contains materials that are used or defined in a drawing and available only to the
  current drawing.