Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Relief Terrain Pack v3.3 Free.
Relief Terrain Pack v3.3q
Relief Terrain Pack v3.3p
Relief Terrain Pack v3.3h
Feel relief watching RTP3 in action:
Forum & demos | Documentation PDF | Showcase video | Tutorial video
– AAA look of terrain at great framerates
– 8 POM textures with self shadowing in 1 pass
– Hard, well defined blending between detail maps
– Physically based shading (Unity PBR model)
– Unity5.3 ready
– Tessellation (DX11, openGL4)
– Advanced dynamic snow (with glitter)
– Triplanar with PM shading
– Global color/normal maps
– Terrain holes system
– Advanced dynamic water features
– Emission masks (dry surfaces & fluid – lava)
– Caustics
– And more…
Editor features:
– Built-in geometry blend toolset for seamless merge terrain with your geometry
– Built-in splat composition tools
– Realtime LOD & feature set adjustment
– Can be used on both terrain and arbitrary mesh
Includes new standalone RTP shaders that works out-of-the-box on any mesh including Voxel Terrains solutions (while any simplistic mesh with normals is enough).
Compatible with many products, including:
-TerrainComposer (strong integration)
– uTerrain (triplanar shading)
– TerraVol (triplanar shading with LOD system)
-Planetary Terrain
Package requires GPU with SM3.0
Does not require Unity PRO.