Under intense time pressure, they had put out two successful CD-ROM titles the previous year – Disney's Animated Storybook: Toy Story and The Toy Story Activity Center. Between the two products, the group had created as much original animation as there was in Toy Story itself. Steve Jobs made the decision to shut down the computer games operation and the staff became the initial core of the Toy Story 2 production team. Before the switch from direct-to-video to feature film, the Toy Story 2 crew had been on its own, placed in a new building that was well-separated from the rest of the company by railroad tracks. "We were just the small film and we were off playing in our sandbox," co-producer Karen Jackson said. Lasseter looked closely at every shot that had already been animated and called for tweaks throughout. The film reused digital elements from Toy Story but, true to the company's "prevailing culture of perfectionism, [...] it reused less of Toy Story than might be expected". Character models received major upgrades internally and shaders went through revisions to bring about subtle improvements. The team freely borrowed models from other productions, such as Geri from Pixar's 1997 short Geri's Game, who became the Cleaner in Toy Story 2. Supervising animator Glenn McQueen inspired the animators to do spectacular work in the short amount of time given, assigning different shots to suit each animators' strengths. While producing Toy Story, the crew was careful in creating new locations, working within available technology at that time. By the time of production on Toy Story 2, technology had advanced farther to allow more complicated camera shots than were possible in the first film. In making the sequel, the team at Pixar did not want to stray too far from the first film's look, but the company had developed a lot of new software since the first feature had been completed. To achieve the dust visible after Woody is placed on top of a shelf, the crew was faced with the challenge of animating dust, an incredibly difficult task. After much experimentation, a tiny particle of dust was animated and the computer distributed that image throughout the entire shelf. Over two million dust particles are in place on the shelf in the completed film. Troubled production Disney became unhappy with the pace of the work on the film and demanded in June 1997