I have been modeling in SU for years and have gained so much from the plugins and discussions with Fredo, Thom Thom, Tig and many others.

But I have been going in circles figuring out a UV workflow for taking my SU model into UE4 using Datasmith. My architectural forms are not super complex or organic, but a fair amount of curved surfaces and some double curvature. I have been using SubD and Quadface Tools.

I have played with SketchUV, Wrap-r and Thrupaint. Thrupaint is the most intuitive to me, but it says that it is not actually UV Mapping, and I don't know enough about UV to know what that means. Will it get me into trouble in UE4 (which I haven't trained on yet)? Or will it be enough for Datasmith to convert properly?

I haven't been able to get SketchUV to work with SubD quads unless I de-triangulate, which in turn messes with my curved geometry.

I thought Wrap-r was the solution when I unwrapped and textured the control mesh, but then it is distorted when I SubD. Unwrapping the subdivided mesh seems to be a royal pain. I am not trying to add edge wear or anything at least in SU, just want stand-in metal, stone and wood textures, but as seamless as possible.

Again, Thrupaint is the most intuitive tool for me, but is it UV mapping or not? I appreciate any help anyone can give.