An artificial eye suitable for realistic use in dolls that replicate human beings, animals, and other creatures such as dinosaurs, aliens, monsters, and the like. The geometry process includes a vertex process that is performed for each of the vertices of the polygon mesh by a different one of a plurality of processors, and processed vertex data obtained by the vertex process is notified among the processors so that a polygon process can be performed in each of the processors. The stopper film is made of an SiCN film having a low optical reflectance, thereby causing it to serve as an antireflective film when the photoresist film is exposed.