Shakespeare has been reinvented for the digital age with Hamlet 360: Thy Father’s Spirit, a modern film version of the play in the emerging technology of virtual reality. Directed by Steven Maler, the founding artistic director of Commonwealth Shakespeare Company, the hourlong film (available on the website of Boston public media station WGBH) had preliminary rehearsals at Babson’s Knight Auditorium. “This has never been done before,” says Maler. “This has been one of the most challenging and mind-bending projects I have ever worked on.”