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IW 4.0 to IW 5.0 Ĭall of Duty: Modern Warfare 2 was released using the IW 4.0 engine, the only game to do so. Treyarch modified the engine for their James Bond title, 007: Quantum of Solace.

The flamethrower featured propagating fire and it was able to burn skin and clothes realistically. Environments also featured more destructibility and could be set alight using a flamethrower. Improvements were made to the physics model and dismemberment was added. Treyarch began using an enhanced version of the IW 3.0 engine for Call of Duty: World at War. This game included features such as bullet penetration, improved AI, lighting engine upgrades,better explosions, particle system enhancements and many more improvements. Development of the engine and the Call of Duty games has resulted in the inclusion of advanced graphical features while maintaining an average of 60 frames per second on the consoles and PC.Ĭall of Duty 4: Modern Warfare was released using version 3.0 of the engine. The engine's name was not publicized until IGN was told at the E3 2009 by the studio that Call of Duty: Modern Warfare 2 would run on the 'IW 4.0 engine'. The engine has been distinct from the id Tech 3 engine on which it is based since Call of Duty 2 in 2005. Aside from Infinity Ward, the engine is also used by other Activision studios working on the series, including primary lead developers Treyarch and Sledgehammer Games, and support studios like Beenox, High Moon Studios, and Raven Software. The engine was originally based on id Tech 3. The IW engine is a game engine created and developed by Infinity Ward for the Call of Duty series.

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