 Ghost in the Shell used a novel process called " digitally generated animation " ( DGA ) , which is a combination of cel animation , computer graphics ( CG ) , and audio that is entered as digital data . In 1995 , DGA was thought to be the future of animation , which mixed traditional animation with the emerging use of computer graphics , including digital cel work with visual displays . Editing was performed on an <unk> system of <unk> Technology , which was chosen because it was more versatile and less limiting than other methods and worked with the different types of media in a single environment . 
