The landscape is generated by Houdini procedurally. Foliage including grass, fern and trees are scattered in different areas based on multi-layer mask information. And the whole system can be randomly regenerated by editting the exposed Houdini Engine parameters.

I also created the landscape material via Substance Designer and Unreal Engine.

Procedural Erosion

Based on the Heightfield node in Houdini, I applied wind, thermal and hydro erosion on the landscape to create the prcedural landcape with ridges, slopes and plains.

Procedural Sediment

After creating the basic shape, I used Houdini to fill the low areas of landscape with sediment.

Procedural Sediment

With assigned parameters including height and slope, I made several masks to filter the landscape, and created the regions to scatter rock and foliage including grass, fern and trees.