Use displacement/bump mapping, but align the mapping with the vertices on the piped areas - don't just draw them free hand. Make the piping a separate material zone so that the user can add it to the soft decorated group in the material room.

Very pretty style for the dress.

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch