In August 2013, The Force Awakens Cinematographer Daniel Mindel and Episode VIII Director Rian Johnson each stated that The Force Awakens Director J. J. Abrams would use little computer-generated imagery (CGI) and more practical, traditional special effects in order to recreate the visual realism and authenticity of the original Star Wars film. To that end, the droid BB-8 was a physical prop developed by Disney Research, created by special effects Artist Neal Scanlan and operated live on set with the actors. Seven BB-8 puppets were constructed for filming. The most prominent was a rod puppet, controlled by puppeteers Dave Chapman and Brian Herring. In addition, there were several radio controlled units and some static prop versions. A fully functioning, self-contained robotic unit was not practical for shooting, so most of the "walking" scenes were achieved by the puppet, with rods removed in post production. Later a self standing remote controlled unit was constructed and used at promotional events.