NVIDIA Human Head Demo

If you haven't seen this already, do yourself a favor and check out the screenshots of NVIDIA's human head demo.  And if you've got a card powerful enough to run the demo, take the time to download it and see the impressive visuals for yourself.  Here's the scoop directly from the source...

"Our latest demo, "Human Head" is now available to the public.  This demo is a startling leap forward in realism for real-time characters, starring actor Doug Jones, who will portray the Silver Surfer in the upcoming film Fantastic Four: Rise of the Silver Surfer. You can compare "Human Head" with the real Doug Jones here: http://www.thedougjonesexperience.com/

NVIDIA's GeForce 8800 Ultra demo "Human Head" uses  a new sum-of-Guassians formulation of subsurface scattering within a multi-layered skin model coupled  to deliver a startling leap forward in realism for real-time characters.  "Human Head" computes 17 off-screen textures every frame totaling over 40 Million pixels, each shaded with lengthy pixel shaders  That amounts to 1.2 billion pixels every second!  Ultra high resolution 4096 x 4096 color and normal textures provide photo-realistic detail even at extremely close ranges."