UNISURF was a pioneering surface CAD/CAM system, designed to assist with car body design and tooling. It was developed by French engineer Pierre Bezier for Renault in 1968, and entered full use at the company in 1975.By 1999, around 1,500 Renault employees made use of UNISURF for car design and manufacture.
Bezier began researching CAD/Computer-aided manufacturing in 1960 while at Renault,focusing on the UNISURF system he developed for use with drawing machines, computer control, interactive free-form curves, surface design and 3D milling for manufacturing clay models and masters. UNISURF debuted in 1968 and has been in full use since 1975.
In 1985 he was recognized by ACM SIGGRAPH with a Steven A. Coons Award for his lifetime contribution to computer graphics and interactive techniques.