Projection of road on terrain

Scene & World Building Terrain
1

Hi,

problem is simple:

I would like to create road or line which would follow terrain but would not edit it, like this:


Do you have any ideas how to do it?

Thank you very much! :slight_smile:

2

You could just draw the path with the existing texture tools.

Or check out the terrain api and asset store for relevant tools to do this.

In theory with a spline or b-spline you could write your own path tool.

3

Do you want it exactly like the CryEngine method? Because this asset will do just that.

4

It’s all about the assets now

5

You can always build your own solution using the Catlike Coding spline tutorial as a starting point. Creating a road through this method would simply be a matter of procedurally generating your own road mesh with the spline as a guide.

http://catlikecoding.com/unity/tutorials/curves-and-splines/

6

MegaFiers also has a conform modifier for dong what you need.

Or you use their other asset MegaShapes which will map a loft to the terrain or map the terrain to the loft.

7

the OP’s picture shows a spline that projects a decal
https://blogs.unity3d.com/2015/02/06/extending-unity-5-rendering-pipeline-command-buffers/

something like that ^
mixed with spline things .. (never done these things myself, but know of them)
splines + decals

and the things people are posting are meshes made from a spline
… theres all sorts of stuff about splines

… QuakeWars mod tools / level editor had that system of road making…
the terrain is ANY shape, and it just projects a decal texture onto the terrain, based on a spline.

8

Thank you very much :smile: In the end I used a lot from this and it was very helpful! Thank you very much once more!!! :smile:

9

You can use the ClipperLib at http://www.angusj.com/delphi/clipper.php . I have a basic function to conform any shape to terrain. Nevertheless it’s slow, so you can’t use this method in runtime.

10

Fancy making that into a little asset? Id happily pay a few quid to save me my current headache. All I want to do is drop a script on a object, click a button and have the unity terrain move to meet it. Maybe a little border area or slope if you were feeling fancy.