A new branching animation system allows dynamic gameplay for the first time in the franchise.
He also has pioneered work in motion capture facial animation systems for over 20 years.
The game was a hit at the 1997 E3 convention, where its animation system and artificial intelligence were demonstrated.
To make the most complex visuals possible, Pixar completely rewrote their animation system for the first time in 25 years.
And then another guy says: 'Hey, use my human animation system - it's really good.
The game also features a new gameplay engine and branching animation system.
A new advanced procedural animation system is used along with collision physics to produce different results depending on the players and physical forces involved.
They know that a certain percentage of their users will be building creatures deliberately designed to foil the procedural animation system.
A new animation system has been put in place, whereby players are no longer locked into an animation.
It showed off the game's use of the Frostbite 2 engine, the improved animation system, and set the tone for the game.