Builds every road surface of a graph as one mesh, relative to origin: carriageways following
their graded profiles, raised sidewalks with kerbs where a road has them, a disc at each junction
and bend, and bridges as decks with parapets standing on piers down to ground.
uv = (metres across from the centreline, metres along the road), for markings and wear.
Builds every road surface of a graph as one mesh, relative to
origin: carriageways following their graded profiles, raised sidewalks with kerbs where a road has them, a disc at each junction and bend, and bridges as decks with parapets standing on piers down toground.uv= (metres across from the centreline, metres along the road), for markings and wear.