Hi guys,first time post here :D https://www.youtube.com/watch?v=Cql81lsrV2w&t=26s In this tutorial,at 0:15 he speeded up and then at 0:23,he just made such a nice leather couch material!!! :o But I think only a normal map can't achieve this effect,and I guess he made a height map( or Parallax Occlusion Mapping.Sorry,I…