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In filmmaking, a complex and time-consuming process known as " travelling matte " was used prior to the introduction of digital compositing.

The blue screen and traveling matte method were developed in the 1930s at RKO Radio Pictures and other studios, and were used to create special effects for The Thief of Bagdad ( 1940 film ).

At RKO, Linwood Dunn used a travelling matte to create " wipes " – where there were transitions like a windshield wiper in films such as Flying Down to Rio ( 1933 ).