I have a (2010?) MacBook pro, and a raspberry pi. I'd like to have a webcam to use with simpleCV, but don't own a USB webcam. I do, however, have access to a MacBook and an iPad mini. So, is there a way to configure the MacBook to send video out? I a,so have a camera connection kit for my iPad, but I'm pretty sure lightning doesn't support video out. It'd be preferable if there was software that used the camera feed to send video out through USB. Is there?