Like any trade, once you learn the ropes of 3D modeling and do it enough, it becomes second nature. Certain college programs even dare to think they can teach it to you in just a semester or two. If you're one of those people that can create a competent 3D model in the blink of an eye and the click of a mouse, or you simply want to get in on the ground floor of 3D modeling with a new kind of control scheme, Purdue University has created a new gesture tool just for you.