Having exactly the same problems, but got nowhere as far as you... I want to draw a line representing the gaze. The tutorials are now not even reachable anymore, the webpages just throw an error, I have to rely on the Wayback Machine. I added the relevant parts of the script on the outdated tutorial, but the first problem I have is that the FacialManager is not instantiated anywhere in the tutorial. If I do instantiate it, the weightings do not change, ever, they stay at 0. Guess I'll have to go back to SRAnipal...
