 It was discovered, however, that the glowing effect was greatly dependent on the rod's orientation to the camera, and during the Obi-Wan Kenobi/Darth Vader duel, they could clearly be seen as rods.Because of this, the glow would be added in post-production through rotoscoping, which also allowed for diffusion to be employed to enhance the glow.Korean animator Nelson Shin, who was working for DePatie–Freleng Enterprises at the time, was asked by his manager if he could animate the lightsaber in the live action scenes of a film.