Rotoscoping is often used in the preparation of garbage mattes for other matte-pulling processes. One of the drawbacks of the old mattes was that the matte line was stationary. Nina Burleigh, Michael Isikoff, Craig Unger, John Mattes, Steven Pifer, and Asha Rangappa. Another use of mattes in filmmaking is to create a widescreen effect. Spengler played the lead role with Ingrid Caven, Eva Mattes and Elisabeth Trissenaar. This would require two masks/mattes. The above-decks footage was integrated with the miniature work using process shots and traveling mattes. That kept production costs down as models, mattes, and explosions were expensive to create. Her daughter Gaby (Eva Mattes) arrives. Georgsdorf lives in Berlin with the actress Eva Mattes and two children. This further made perfect green screen mattes impossible on the format. This was begun but left unfinished by John C. Mattes, who died in 1948. The actor Josef Mattes is their son. Yohannes readily accepted corrections made by a notable on procedural mattes. In 1980 they had a daughter together, Hanna Mattes.