TweakTown captured a video of a real-time rendering of a Porsche at the NVIDIA GPU Technology Conference in San Jose. The demonstration ran on a NVIDIA Quadro 6000 workstation graphics card, with DeltaGen software from RTT and multi-touch technology from PQ Labs.
In this demo we see a real-time rendering of a Porsche vehicle (sorry, I'm not up to scratch Porsche car models... 10 points to the first person to tell us which it is!) and in the software as you can see in the video below you are able to adjust certain aspects of the scene, such as the color paint job of the car. In turn you can see how those changes affect other aspects of the scene such as shadows in what looks to be a very realistic manner.