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This paper presents methods for generating 3D facial expressions. The pattern functions are employed to generate detailed, animated facial expressions. The created pattern functions include wrinkle patterns (forehead wrinkle, eye corner wrinkle, cheek wrinkle and frown wrinkle), dimple pattern and eye pouch effect pattern. The pattern functions allow a user to directly manipulate them and see immediate results, and allow expressive features to be applied to any existing animation or model. Thedoi:10.2316/journal.205.2013.1.205-5782 fatcat:344axsvdirhvjjdcj747ctvnoq