Disclaimer: Foliage & Rocks in the above images do not come with OpenLand. They are taken from the OneGrass Engine & Quixel MegaScans. Some of the Landscapes are created with TerrainMagic.
With OpenLand, you can focus on creating unique landscapes while OpenLand takes care of the heavy shader work. These days, you can get really good textures in many places. Then you can easily use them in OpenLand without modifying the core or additional shader compile time.