Nonwoven materials are attached to a woven backing (scrim). Felted filters contain randomly placed fibers supported by a woven backing material (scrim). A scrim or gauze is a very light textile made from cotton, or sometimes flax. In high quality cloth, the strands or scrim are tensioned during the lamination process. The latter may or may not be reinforced with a scrim layer. In film and theatre, gauze is often fashioned into a scrim. In this construction, a scrim or strands (inserts) are sandwiched between layers of film. Jute scrim can reinforce plaster in sculpture, when casting or working directly in plaster. Wovens on both sides of a scrim without the film layer. In a membrane filter, a thin, porous membrane is bound to the scrim. The broadcast finished with a live broadcast of a scrim between two of Dystopia's clans. A scrim can be used indoors on a soundstage. The design of the architectural scrim which surrounds the building was changed in September 2012. The scrim resembled an electric math grid which was lifted during the performance. A graduated scrim varies the intensity of light from across it.