Pretty disappointed by this. UE4 is great, but it has a lot of core issues and feature gaps that would improve the tools greatly. What was wrong with the issue tracker? It gave us the ability to request issues and visibly track their progress. I can understand building on and improving it, but removing the tracker entirely is taking 10 steps back. Was really looking forward to potentially having this feature, now it has zero visibility. What a shame 
I think to that sounds like spline decals, this, and several other issues are *exactly *what has to be worked on because as said, this ended up having both community interest and large audience need.
Implementing this yourself, even with BP isn’t that hard.
I’m pretty sure it’s impossible to do. You can’t do shearing transformations for decals, can you? If you make a curve out of linked decals, you’d need to transform the inner and outer edges of the circle so that the ends link up, without that the edges would either overlap on the inner side or be spread apart on the outer side.
Yes but as of version something point something, you can use decal materials on meshes, so do it as a mesh.
But don’t you then run into the same problem as with any static mesh splines that you have to carefully fit it against the landscape if you want to do something like a road?
This is why we don’t use meshes: Spline Decals? - Feedback & Requests - Epic Developer Community Forums
One idea to help with terrain penetrating spline mesh - would it be possible to clamp the terrain back to the spline after it was place?
Treat it kind of like a specialized sculpt brush…
Or make the terrain transparent under the spline - e.g. an auto hole
Epic … please >_<
Bumping the ■■■■ outta this. I would very much like this to be implemented. I don’t even want this for landscape use really, I just want general use of having spline-based decal projections, for my current project I desperately need it, as there is no suitable workaround. Aligning splines to the world doesn’t work for my needs because of the gaps ans intersections.
4.18 is coming out soon, and there is still nothing on epic’s roadmap… i’m DONE with creating roads with bloody meshes, it’s making me go nuts, everytime i make them. i have screw around with rotations, tangasts or w/e they r called… and no matter how hard i screw with them they continue to look terrible… one part looks too lengthy while the other look too short… why do i have deal with this over and over and over and over and over and OVER again?! i have no strength in me left to work on bloody roads… give us spline decals already…
I know right its ■■■■■■■ me off as well, thats why I dont make roads in UE4
Calm down… their internal projects don’t need spline decals.
This is the kind of stuff that makes people switch engines
might go work on a mod for truck simulator, it has a pretty cool road editor… wanted to make a big a map for squad with couple of cities, but i can’t build bloody roads properly…
I know right, its so sad that UE4 cant do a basic thing like roads 
Just a quick little bumpity-doo to support voice the need of this feature.
It’s a real pain to deal with road meshes blending with the landscape well, and there really is no excuse to still have to manually adjust the landscape to fit the road at this day and age.
Exactly this guy knows what’s up 
Doesn’t Overwatch’s game engine have spline decals? Blizzard used them a lot to build pathways on at least half their maps… and they look amazing. 
This feature should really be a priority.
GTA V (a game from 2013, mind you) also uses decal roads, I’m pretty sure.
It’s apparent from how the roads “float” a bit above the landscape to avoid z-fighting.