The IW engine is a game engine created and developed by Infinity Ward for the Call of Duty series. The 6️⃣ engine was originally based on id Tech 3. Aside from Infinity Ward, the engine is also used by other Activision 6️⃣ studios working on the series, including primary lead developers Treyarch and Sledgehammer Games, and support studios like Beenox, High Moon 6️⃣ Studios, and Raven Software.[1][2][3]

History [ edit ]

IW 2.0 to IW 3.0 [ edit ]

The engine has been distinct from the 6️⃣ id Tech 3 engine on which it is based since Call of Duty 2 in 2005. The engine's name was 6️⃣ not publicized until IGN was told at the E3 2009 by the studio that Call of Duty: Modern Warfare 2 6️⃣ (2009) would run on the "IW 4.0 engine".[4] Development of the engine and the Call of Duty games has resulted 6️⃣ in the inclusion of advanced graphical features while maintaining an average of 60 frames per second on the consoles and 6️⃣ PC.

Call of Duty 4: Modern Warfare was released using version 3.0 of the engine. This game included features such as 6️⃣ bullet penetration, improved AI, lighting engine upgrades, better explosions, particle system enhancements and many more improvements. Treyarch began using an 6️⃣ enhanced version of the IW 3.0 engine for Call of Duty: World at War.[5] Improvements were made to the physics 6️⃣ model and dismemberment was added. Environments also featured more destructibility and could be set alight using a flamethrower. The flamethrower 6️⃣ featured propagating fire and it was able to burn skin and clothes realistically. Treyarch modified the engine for their James 6️⃣ Bond title, 007: Quantum of Solace.[6]