Heavy Rain creator David Cage was showing off Quantic Dream's new game engine at GDC, which includes an innovative new performance-capture technology the company's developed. He's directed a seven-minute original short called Kara, which is the story of a female android as she becomes self-aware. Unlike traditional game production methods, this technology is able to record face and body movements at the same time as recording the actors voice -- ensuring natural and consistent performances from the characters. Actress Valorie Curry wore 90 sensors on her face, unlike in, say, Avatar, where the performers wore head-mounted cameras. Cage promises that the short is nothing more than a demo (it was rendered in real-time on a PlayStation 3) and none of these elements will appear in his next game. You can catch the impressive-looking footage after the break with one disclaimer: there's nudity throughout and a reference to adult themes, okay?