In Killzone 3 Guerrilla Games added effects by using Houdini
In every video game series, each new version comes out bigger and better than the last. In “Killzone 2″ Guerrilla Games added more realistic in-game effects by using Houdini for fracturing, cloth simulation and terrain generation. In Killzone 3, they have again upped their game, creating more realistic environments which are both larger and more extreme.