2k pbr cobblestone material with 19 procedurally predefined patterns (20th is the grout) and other exposed parameters in sbsar format. It's a single material shown in preview with adjusted parameters in render engine.

Preview images were rendered in UE4. It was used only for the sakes of fast preview rendering, and this material can be used in any 3d application (3ds max, Maya, Modo, Cinema4d, Unity, Houdini, Blender).

Following parameters can be changed:

1. pattern select (20 items)
2. bulge on/off
3. pebbles size and amount
4. moss amount
5. random seed

Outputs:

1. basecolor
2. normal
3. roughness
4. height
5. ambient occlusion

Please note that this product is not a 3d model, it is a pbr material created with Substance Designer 2018.3.1 and exists only in sbsar format. But if you need this material in different formats like png, jpg, tiff, you easily can export maps with the help of Substance Player, which is a free and lightweight program. If you have dificulties with that I'll provide you with pictured explanation.

More parameters can be exposed on demand. Also more patterns can be created. So please let me know.