Line renderer position?

Question

Hello. When using the unity line renderer, is there a way to make the positions that the line uses as nodes to another objects transform position instead of a vector 3 position (I want the line to move)? Thanks

Answer 1

Best Answer

Answer by Jessy · Dec 23, 2010 at 12:09 AM

Use SetPosition in an Update() function, with the second parameter being the transform position of whatever you're tracking.

Add comment · Show 2 · Share

TechnoRazor · Sep 29, 2015 at 01:01 AM 0

Share

Does this not work in Javascript or what? I tried over and over to make it work, but I couldn't.

tlskillman · Sep 10, 2020 at 07:45 PM 0

Share

Two debug days later, found your post. Perfect. Thanks.

Answer 2

Answer by seandanger · Feb 21, 2014 at 05:27 AM

Old question, but for future reference, you can uncheck the default "Use World Space" option in the inspector to have the Positions relative to the transform on the GameObject.

You can also set it in code as such (C# code on a MonoBehaviour):

 LineRenderer myLineRenderer = GetComponent<LineRenderer>();
 myLineRenderer.useWorldSpace = false;

Add comment · Share

Answer 3

Answer by sj631 · Jan 20, 2017 at 08:48 AM

first set "use world space " to off in inspector set element 0 to 0,0,0 myLineRenderer.SetPosition(1,objectWithLineRenderer.transform.InverseTransformPoint(targetObject.transform.position)) if targetObject is moving put this in update or coroutine

Add comment · Show 2 · Share

Halocrafter · Mar 23, 2017 at 07:06 PM 1

Share

This worked perfectly for my needs. As a separate question though, what if I want multiple objects to have this effect? Would I need to make each object that'll have the effect have a line renderer as well, or is there a simpler way?

pratham2504 · Feb 26, 2018 at 07:47 PM 0

Share

I absolutely love you bro for this.. $$anonymous$$y days of remorse ends here.. Thanks mate.. :D

Answer 4

Answer by NathanJSmith · Dec 26, 2018 at 11:36 AM

My solution is bake the line into mesh, then I can easily move that line

Here is the code:

 public static void BakeLineDebuger(GameObject lineObj)
 {
     var lineRenderer = lineObj.GetComponent<LineRenderer>();
     var meshFilter = lineObj.AddComponent<MeshFilter>();
     Mesh mesh = new Mesh();
     lineRenderer.BakeMesh(mesh);
     meshFilter.sharedMesh = mesh;
 
     var meshRenderer = lineObj.AddComponent<MeshRenderer>();
     meshRenderer.sharedMaterial = s_matDebug;
 
     GameObject.Destroy(lineRenderer);
 }

Make sure lineObj has LineRenderer component.

Add comment · Share

Answer 5

Answer by Mickydtron · Dec 23, 2010 at 12:22 AM

You could make the line renderer a child object to the thing you want it to follow. Then it would automatically go everywhere the parent went.

Add comment · Show 2 · Share

drothenbucher · Feb 06, 2014 at 03:06 AM 1

Share

I can't seem to get that to work. It doesn't seem to follow the parent around. Is there something I might be forgetting to do. I created an empty game object with the line renderer and then made the game object a child of the object I wanted it to follow. the empty object follows the parent but the lines do not.

drudiverse · Jul 04, 2014 at 10:55 AM 1

Share

doesnt work, setposition is independent of parent transform.

Line renderer position?

5 Replies

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions