What would a martian colony look like? This was the question I started out with exploring the possibilities of a renaissance courtyard residing in space.
The terrain was generated with height data sourced from the HiRise project. It was later edited in World Machine in order to increase the magnitude of detail.
I developed a custom mesh-blending system in order to blend rocks with the terrain. It utilizes UE4's Mesh Distance Fields to get the correct normal of the underlying terrain. It then lerps between that and the mesh' world space normal with the terrain texture to get a smooth blend.