Make a Circle using LineRenderer in Unity

Category : C# , Full Script , Game Development , Unity

Great little script for Unity that makes a LineRenderer component shape into a circle or ellipse, given the number of line segments along with x and y radius.

Script by MarkPixel. Original thread here. Full Script Below.

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(LineRenderer))]

public class LineRenderer_Circle : MonoBehaviour
{
	public int segments;
	public float xradius;
	public float yradius;
	LineRenderer line;
	
	void Start ()
	{
		line = gameObject.GetComponent();
		
		line.SetVertexCount (segments + 1);
		line.useWorldSpace = false;
		CreatePoints ();
	}
	
	
	void CreatePoints ()
	{
		float x;
		float y;
		float z = 0f;
		
		float angle = 20f;
		
		for (int i = 0; i < (segments + 1); i++)
		{
			x = Mathf.Sin (Mathf.Deg2Rad * angle) * xradius;
			y = Mathf.Cos (Mathf.Deg2Rad * angle) * yradius;
			
			line.SetPosition (i,new Vector3(x,y,z) );
			
			angle += (360f / segments);
		}
	}
}

using UnityEngine;

using System.Collections;

[RequireComponent(typeof(LineRenderer))]

public class LineRenderer_Circle : MonoBehaviour

{

public int segments;

public float xradius;

public float yradius;

LineRenderer line;

void Start ()

{

line = gameObject.GetComponent();

line.SetVertexCount (segments + 1);

line.useWorldSpace = false;

CreatePoints ();

}

void CreatePoints ()

{

float x;

float y;

float z = 0f;

float angle = 20f;

for (int i = 0; i < (segments + 1); i++)

{

x = Mathf.Sin (Mathf.Deg2Rad * angle) * xradius;

y = Mathf.Cos (Mathf.Deg2Rad * angle) * yradius;

line.SetPosition (i,new Vector3(x,y,z) );

angle += (360f / segments);

}

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Justin Fletcher

Game Designer, Programmer, Lover of all things retro. I've been a programmer for about 8 years. Got into game development part time 6 years ago and haven't been able to put it down.

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Make a Circle using LineRenderer in Unity