Hey guys.
judging from the screenshots I have seen and videos you are not using the new Eye shader that valve developed, but must have decided to wait untill Ep3 to include it.
The shader works and looks great and I dont see difference in frame rates using it.
Here is how it looks
(I removed the obama model so I could post the finished shader)
So if you guys want the code for this shader just ask me, I can do it all for you.
Also I can make it fallback to normal eyes if run in DX8.
This is based of a code Pelpix dicovered. I know he will get angry if I dont mention him.