Rugged Rocks as part of the StampIT! Collection consists of 20 high quality textures in stunning 4K resolution. These heightmap textures can be used as brushes with the Unity terrain tools in order to paint features on your Unity terrain. Or you could use these heightmap textures in other assets like Atlas, Map Magic 2, Gaia, etc.
The asset consists of the heightmaps and the brush presets, the terrain textures are not included.
You can see a preview of the Stamps in the Package Content tab.
The video shows an example about how to use the terrain stamps and apply terrain texture using the free Substance 3D for Unity plugin.
Please check out the youtube video description about all the assets that were used to achieve this look combined with the heightmap. Most notably:
for stamping and applying rock and snow textures with a slope mask
MicroSplat - Dynamic Snow
for dynamic snow in combination with wind and glitter
MicroSplat - Wind and Glitter
for wind across the snowy terrain and glitter effect of the snow
MicroSplat - Trax
for the character to leave tracks in the snow
Substance 3D for Unity
for creating rock and sand textures from substances
Free Snow Materials - Substance Designer by Serif Can
the snow substance
Eroded Volcanic Rock
the rock substance
Stamping features on the terrain is a process which is supported by Unity out of the box. Simply put stamping is blending of various textures with each other. This process has been existing for a very long time and has been used in various applications, most notably image processing applications like Photoshop, Krita, Gimp, you name it.
Unity provides a very convenient means to blend those images together with their built-in terrain tools. The Unity terrain tools provide an editor with a brush preview which allows you to adjust a stamp in detail before you apply it.
For an even better experience the free Unity Terrain Tools package which can be installed in addition to the built-in tools via Package Manager is an excellent choice. It extends the terrain tools palette with even more tools which allow you to fine tune your stamped terrain to achieve the look of your personal artistic preference.
In case you need complete terrains imported into Unity including textures, then the awesome World Creator is a preferred application. Highly recommended!