MAWI United released an amazing new pack for UE4 users.
The new set includes a powerful landscape material setup with 8 custom layers. You can use your own textures or just add Megascans. Each layer can be controlled separately: UV tiling, color correction, procedural cliff function, distance blending, variation detailing and more.
It also features a procedural cloud system and more. There are five free photoscanned ground materials, four example landscape biomes, procedural foliage controls per layer for rocks, grass and two custom types. You will also get a background mountain mesh to create large vistas.
Features:
You can learn more and get the pack here.