I saw this post today on RealityPrime where it was titled "This Is Magic" and I have to agree. And the fact that this technology was created at U of I makes it even cooler. The short version is this video shows how objects (including ones in motion) can be added to a photograph and interact with the lighting and objects already present in the image. The long version can be seen in the abstract I've included after the video. But really you just have to see the video.