I needed a variety of road surfaces for a project I'm in the middle of and thought others might find the substance useful. Comments and critiques are always welcome too!
You can get the SBSAR on Gumroad here: https://gumroad.com/l/kuNLm
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Check out my other substance packs here: https://dctech.gumroad.com/
A quick demo of the Substance running in Unreal and real-time damage creation.