So I imported a openstreetmap model I made in blender of my local touge, its just an .dae, not a heightmap I'm wondering if I could just get a terrain block and sculpt it directly to the object? Because getting the roads to work properly without a terrainblock has been a total headscratcher for me...
A few answers... 1. There is a raise or lower terrain to object button in the terrain modifier section. That's the easy answer. 2. Unless your blender model is exactly the same in terms of the mesh grid, it won't be a perfect match, so there will be strangeness. 3. You can lay road decals on objects. There is an option for this in the road decal tool. There are plenty of good example maps which don't use terrain at all.
the openstreetmap isnt exactly perfect tho... some of its hills act like more like a ramp... and I cant really smooth it out, at least I dont know how to... just seems easier to go the terrain route
Maybe your model do not have a collision mesh I guess. Set the collision type of your model to Visible Mesh Final and try again?
I could try but yeah at this point I've just increased the polygons on the original model and gone that route at the moment... might go back to this and try this tho, because im also having stupid issues this way