As promised, NVIDIA is opening source code for selected GameWorks modules.
Source code for HairWorks, a complete solution for simulation and rendering of realistic fur and hair, has recently made it to GitHub.
|HairWorks 1.2 Alpha : Release Notes|
HairWorks source code branch can be accessed at http://github.com/NVIDIAGameWorks/HairWorks.
Please Note that you’ll require an approved GitHub account, as described here.