I think that the best example would be.... eh... GTAV. In that game there is a lot of roads that are very seamlessly integrated into the game's terrain. Another great example is Forza Horizon 2 which also does some similar things. The Idea is to build open levels with quite a few roads on them while still having…
Houdini Engine for UE4 is coming... just saying. The traces of it are already in existing Houdini builds. If anyone is interested in giving a chance to Houdini and would like to use Houdini Engine power directly (without baking o disk in Houdini) inside their engine that doesn't have support for it yet (if ever), you can…
I don't see any complex system in what you showed. It looks nice only because it's shaded and textured. Otherwise it's a pretty simple geometry everywhere. Those guys made their ow road system in Houdini => https://vimeo.com/116087676 Other procedural examples of using Houdini for game development:…