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From the update:
Hello to all
After much research and the introduction of new polyurethane materials, we were able to obtain a thin film of soil very flexible, but also very stable and resistant. What you’ll see in the pictures is just a prototype with a simple effect paving stone and simple terrain. This was just a quick test to evaluate the result of the two texturing. From the result very much valid as an effect, we can now obtain two separate texture for a paving stone suitable for a city or village. While the texture of simple terrain will be suitable for battles or small villages rurarli.
I leave you with images that are worth a thousand words.