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Euphoria Physics is a game engine animation software developed and created by NaturalMotion based on Dynamic Motion Synthesis, NaturalMotion's proprietary technology for animating 3D characters on-the-fly "based on a full simulation of the 3D character, including body, muscles and motor nervous system" on next-generation consoles. It is most well known in its incorporation into the Rockstar Advanced Game Engine (RAGE), which Grand Theft Auto IV and Red Dead Redemption runs on, for its use in advanced character simulation animation and Ragdoll Physics.


The software allows characters and even players to perform enhanced animated movements more naturally and interactively by utilizing "on-the-fly" programming animation, combining artificial intelligence, biomechanics and physics. Euphoria covers nearly all in-game animated behaviors, including firearm usage, hand-to-hand combat, jumps and climbs, recoveries and interactions with in-world objects.

In addition to enhanced animation cycles, Euphoria is also designed to perform more life-like animations and an underlying sense of self-preservation giving each character unprecedented interactivity and realism.

For example, pedestrians who are knocked off-balance by a player will stumble around dynamically and grab onto objects (or other people) in the game world for support themselves. Characters who are falling, heavily injured, ejected from a car, etc. will also enter an "intelligent ragdoll" state -- rather than simply going limp -- which will cause them to protect their heads while rolling, reach out to break a fall with their hands, grab injured body parts and otherwise practice realistic self-preservation in a way that would be almost impossible to replicate with canned animation.

Euphoria is optimized to run on PlayStation 3, Xbox 360 and PC and is powering on most Rockstar Games such as Grand Theft Auto IV, Red Dead Redemption and Max Payne 3.

Rockstar Games Powered by Euphoria Physics

Video demostration

NaturalMotion's Euphoria02:06

NaturalMotion's Euphoria

A simple demostration of physics.