Lara: now this week . is london fashion week. once more, models are gracing the catwalks to show off this season's finest designer garments. have you seen anything you like, spencer? no, has corduroy come back yet? not sure. yeah, it's all a little experimentalfor me, shall we say, but it looks very creative. how about you ? well, don't laugh yet, but i've actually been on the runway this week. lara: i'm off to the fashion innovation agency at the london college of fashion to test out a motion capture rig unlike any i've used before. no expensive mo—cap suits here. no dots painted on my face...