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|Session Name:||Architecting Jolt Physics for 'Horizon Forbidden West'|
|Company Name(s):||Guerrilla Games|
|Track / Format:||Programming|
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|Overview:||For Horizon Forbidden West, Guerrilla Games switched from a commercial physics engine to Jolt Physics, an open-source physics engine that was born as a personal hobby project. By switching to this new engine, we saved memory, executable size and were able to double our simulation frequency while using less CPU time. This talk describes how we use a physics engine at Guerrilla, how our previous physics engine caused bottlenecks while streaming in data and while interacting with the multi-threaded game object update. Jolt was architected specifically to help solve these two problems and the talk explains two of the systems that made this possible.|