Actual animation began in 1999, involving 400 artists and 300 technicians and production personnel. Outside of the Walt Disney Feature Animation studio building in Burbank, California, animators located at Walt Disney Feature Animation Florida and Disney Animation France assisted in the production of "The Emperor's New Groove". During the last eighteen months of production, a 120-crew of clean-up artists would take the character animators' drawings and place a new piece of paper over the existing image to draw a cleaner, more refined image. "We're basically the final designers", said clean-up supervisor Vera Pacheco, whose crew worked on more than 200,000 drawings for "Groove".