The Rhinoceros file format (.3DM) is useful for the exchange of NURBS geometry.
An exhibition, in the most general sense, is an organized presentation and display of a selection of items.In practice, exhibitions usually occur within museums, galleries and exhibition halls, and World's Fairs.xhibitions range from an extraordinarily large event such as a World's Fair exposition to small one-artist solo shows or a display of just one item. Curators are sometimes involved as the people who select the items in an exhibition.
In art, a medium is the material that artists use to create their art. It's that simple. Whatever a piece of art is made out of is its medium. The plural of medium is media. So, one piece of art can be made of one medium or several media. If you've ever been to an art museum or gallery, you've probably seen those little signs next to each piece that look something like this: