BASICALLY THE WORKFLOW IS MAKING THE HDA IN HOUDINI THEN MAKING DIFFERENT VARIATION IN UNREAL/UNITY EXPORT TO SUBSTANCE PAINTER ADD SMART MATERIAL OR TRIM SHEET OR GENERATE MASKS IN PAINTER AND DO TEXTURING IN UNREAL/UNITY AND YOU HAVE INFINITY NUMBER OF VARIATION IN VIEW MINUTES ALL THIS STEPS ARE DONE BY ME NO OTHER ARTIST NEDEED IF YOU WISH!! MY SKILLS BELOW I am a houdini technical / 3d environment artist specialist in procedural workflow with houdini & substance designer for procedural pbr textures as houdini artist i am able to create a procedural props / environments / terrains i make different HDAs for different purpose like 1 HDA for props 1 HDA for scater geometry some time both if nedeed, then you can use it HDA in unreal / unity / maya / max / houdini engine i for free for unity / unreal. extra skills ( codin python/c#/vex/java ), (math linear algebra like vector/matrix/cross,dot producd etc /trigonometry like sin/cosine/tan etc )