Hi, I'm getting way ahead of myself here, but I just wondered if anybody knew of any good mouth-movement tutorials. What I mean is the kind of mouth movement that is used in Half-Life and Deus Ex when a character talks and the jaw of the mesh moves. I know this is probably theoretically quite simple - just add an extra bone for the jaw and assign the right vertices - but I looked on PlanetHalflife and PlanetDeusEx and did a web search, but couldn't find any tutorials on how to set it up correctly. I won't be at the stage of making characters talk in my game for a year or so, probably, but I'm modelling the lead characters now and figured I should take this into account.

Any help or pointers to tutorials much appreciated,
Keith