"Visual effects is not a new thing. It had been used in different ways in many movies decades before. We had once done such effects manually, but now we do it digitally," he said during a seminar on "The Magic of VEX film Making", organised by the Animation, Infotainment and Media School (AIMS) here.
"Everything is overall the same at the concept level. Only medium and techniques have changed," he said.
He also won a number of recognitions including the National Awards for the Rajnikath-starrer movies.
Elaborating on the technical details of the visual effects, he said every visual designer is like a music composer or magician who creates an entirely novel thing using a handful of tools and techniques.
A successful visual effects designer would know every detail of film making including the characterisation and background of the story, he said.