The Chaos Destruction system is a collection of tools that can be used to achieve cinematic-quality levels of destruction in real-time. In addition to great-looking visuals, the system is optimized for performance, and grants artists and designers more control over content creation and the fracturing process by using an intuitive non-linear workflow and a new asset type called Geometry Collections.
This learning Path will help you understand the fundamentals of the Chaos Destruction system through video tutorials and examples.
https://dev.epicgames.com/community/learning/paths/bQ/unreal-engine-chaos-destruction