Fantastic Hugo! I need a tutorial about this, from scratch to Unreal :0 is just awesome

I bought your other Houdini Stylized Grass Material bundle course today, looking forward to learning new stuff :). Is this going to be a course too? If yes, will love to buy it too, if it teaches how to use Houdini to create game ready environment assets for Unreal Engine 4 ;).

did you use Substance or Zbrush?