Is there any good reference on procedural asset UV generation, as I am struggling trying to figure out the best way to approach this for my assets which are to be used in a game engine.

Thanks.

There's a really good set of videos on procedural Road Creation, and in the first (https://cmivfx.com/store/213-houdini-procedural-road-creation), [cmivfx.com] Kim explains how to do just this, and goes into quite a bit of detail about it.

There's a video on the Sidefx vimeo channel by Ari that also goes into this, I can't recall which one though.

That's brilliant thanks for the heads up, that tutorial looks promising.