By PATRICIA COHENNew York Times
Eitan Grinspun, the director of Columbia University’s Computer Graphics Group, doesn’t quite qualify as hairdresser to the stars. But if you want computer-generated hair (or fur) to look convincingly real when it is twisted, clumped, matted, coiled, soaked, dusty, wind swept, singed — or just about anything else a film director could possibly think to do to it — then Mr. Grinspun is the man to consult.