Just read this interesting article on LA Noire and felt the discussion would cover both gameplay and tech, so I'm starting in the middle ground forum. 
The game seems to be paralleling Heavy Rain, but achieving more through a better facial animation system that allows for subtle human behaviours to be communicated. Their mo-cap rig doesn't capture skeleton info, but records a full 3D space video which is used somehow in game. They don't explain how the motion data is applied to the models - I guess morphing the model mesh to fit the video data. (?) Most importantly, the journalist reports it works, with them reading the facial animations of whomever they are interrogating to good effect.
There are spoilers. The game is divided into cases, and the case they talk about, they exaplin the solution, so don't read page 4 is you want to avoid knowing who dunnit!
The game seems to be paralleling Heavy Rain, but achieving more through a better facial animation system that allows for subtle human behaviours to be communicated. Their mo-cap rig doesn't capture skeleton info, but records a full 3D space video which is used somehow in game. They don't explain how the motion data is applied to the models - I guess morphing the model mesh to fit the video data. (?) Most importantly, the journalist reports it works, with them reading the facial animations of whomever they are interrogating to good effect.
There are spoilers. The game is divided into cases, and the case they talk about, they exaplin the solution, so don't read page 4 is you want to avoid knowing who dunnit!
