The GDC clip is basically him talking on others people work completely unrelated to what he's supposed to sell. High five!
We’ve recently published an article about a procedural hair generator created in Substance by Vinícius Cortez. The thing is that the artist has decided to share the graph for you to study his awesome material.
You can buy the graph for $7 on Gumroad.
And here are some details on the original generator pack (in case you’ve missed it):
Import it into Game Engines that support Substance from Allegorithmic.
Or export the maps using Substance Player (free).
The pack includes a .sbsar file. You can learn more here.