- Home /
how to make a dotted line renderer ?
i dont have any idea on this. can someone please enlighten me ? any help is appreciated. thanks!
Answer by Bradybeast128 · Oct 05, 2018 at 02:23 PM
@romelleayala You could just set the material of a line renderer to a texture of a dotted line and then have the material repeat. Hope this helps!
Line renderers don't support transparency, so it only works if what is behind the line render is a solid colour.
Never$$anonymous$$d, I was using an unlit texture shader ins$$anonymous$$d of a unlit transparency shader. Your method works perfectly. Thanks!
Answer by Solocov · Jan 08, 2021 at 10:51 AM
Since it took way to long to fix this myself here is the complete solution:
https://www.reddit.com/r/Unity2D/comments/kt01nv/dotted_linerenderer_fixed/
Hope this helps!
Answer by KirillKuzyk · Oct 29, 2019 at 10:37 AM
Both LineRenderer and TrailRenderer have a property TextureMode. Set it to Tile or RepeatPerSegment to achieve a dotted or dashed line.
Answer by KT1994 · Aug 23, 2019 at 06:07 AM
For me it didn't worked. The only solution I found is to create a script that creates a dotted line. I have also written a blog to share how I achieved this.
https://www.knowledgescoops.com/2019/07/creating-dotted-line-in-unity_29.html
Answer by vovo801 · Feb 13, 2020 at 04:32 PM
Had to do the same thing in Unity 2019.3. Even though the TextureMode field exists on the LineRenderer, I was not able to figure out the correct math for not distorting the dots. So, I went with TextureMode set to Stretch. On the texture that I used as the dot on the line, I set WrapMode to Repeat. Edited the texture in PS to add some padding to spread the dots apart from each other (Canvas Size in PS). Created a material with this texture. Used the shader Mobile/Particles/AlphaBlended.
Here's a script that I used on my dotted line prefab (attached to the same object that has the LineRenderer component):
using UnityEngine;
public class DottedLineRenderer : MonoBehaviour { public bool scaleInUpdate = false; private LineRenderer lR; private Renderer rend;
private void Start ()
{
ScaleMaterial();
enabled = scaleInUpdate;
}
public void ScaleMaterial()
{
lR = GetComponent<LineRenderer>();
rend = GetComponent<Renderer>();
rend.material.mainTextureScale =
new Vector2(Vector2.Distance(lR.GetPosition(0), lR.GetPosition(lR.positionCount - 1)) / lR.widthMultiplier,
1);
}
private void Update ()
{
rend.material.mainTextureScale =
new Vector2(Vector2.Distance(lR.GetPosition(0), lR.GetPosition(lR.positionCount - 1)) / lR.widthMultiplier,
1);
}
} Another issue that I've encountered - I wanted to fade the start and end of the line into transparency by setting the color gradient on the line. For some reason this did not work for me if the line had only 2 points and both ends were transparent, but it did work when the line had more than 2 points. Here's the code that I used to resolve this and add more points to the line:
// line renderer with 2 points only does not handle transparency properly: lineRenderer.positionCount = linePointsCount; // I used linePointsCount = 10 for (var i = 0; i < linePointsCount; i++) { lineRenderer.SetPosition(i, Vector3.Lerp(fromPoint, toPoint, (float) i / (linePointsCount - 1))); }
var dottedLine = lineObject.GetComponent<DottedLineRenderer>();
if(dottedLine != null) dottedLine.ScaleMaterial();
I hope this helps someone.
Your answer
![](https://koobas.hobune.stream/wayback/20220612175812im_/https://answers.unity.com/themes/thub/images/avi.jpg)
Follow this Question
Related Questions
Need help setting correct Y height for laser beam with 50 elements 2 Answers
How to make a Line Renderer thin out only near the ends? Alternatively, how to apply 3-way slicing? 1 Answer
How to detect objects around a position and add them to a list 2 Answers
line renderer to draw multiple lines 1 Answer