Notes: In the packlist there are two types of materials (mountain and desert). 

By replacing one with the other, you can easily change the rock type: mountain or desert, to suit your type of scene.

This product supports Lumen for Unreal Engine 5.0+

If you have any problems with lumen, please read the official information.

https://dev.epicgames.com/documentation/en-us/unreal-engine/lumen-global-illumination-and-reflections-in-unreal-engine?application_version=5.0