LineRenderer.SetPosition

Parameters

Description

Set the position of a vertex in the line.

Consider using SetPositions instead, if setting multiple positions, as it is much faster than making individual function calls for each position.

See Also: numPositions property.

#pragma strict
public var c1: Color = Color.yellow;
public var c2: Color = Color.red;
public var lengthOfLineRenderer: int = 20;
function Start() {
	var lineRenderer: LineRenderer = gameObject.AddComponent.<LineRenderer>();
	lineRenderer.material = new Material(Shader.Find("Particles/Additive"));
	lineRenderer.widthMultiplier = 0.2f;
	lineRenderer.positionCount = lengthOfLineRenderer;
	// A simple 2 color gradient with a fixed alpha of 1.0f.
	var alpha: float = 1.0f;
	var gradient: Gradient = new Gradient();
	gradient.SetKeys([new GradientColorKey(c1, 0.0f), new GradientColorKey(c2, 1.0f)], [new GradientAlphaKey(alpha, 0.0f), new GradientAlphaKey(alpha, 1.0f)]);
	lineRenderer.colorGradient = gradient;
}
function Update() {
	var lineRenderer: LineRenderer = GetComponent.<LineRenderer>();
	var t: var = Time.time;
	for (var i: int = 0; i < lengthOfLineRenderer; i++) {
		lineRenderer.SetPosition(i, new Vector3(i * 0.5f, Mathf.Sin(i + t), 0.0f));
	}
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    // Creates a line renderer that follows a Sin() function
    // and animates it.

    public Color c1 = Color.yellow;
    public Color c2 = Color.red;
    public int lengthOfLineRenderer = 20;

    void Start()
    {
        LineRenderer lineRenderer = gameObject.AddComponent<LineRenderer>();
        lineRenderer.material = new Material(Shader.Find("Particles/Additive"));
        lineRenderer.widthMultiplier = 0.2f;
        lineRenderer.positionCount = lengthOfLineRenderer;

        // A simple 2 color gradient with a fixed alpha of 1.0f.
        float alpha = 1.0f;
        Gradient gradient = new Gradient();
        gradient.SetKeys(
            new GradientColorKey[] { new GradientColorKey(c1, 0.0f), new GradientColorKey(c2, 1.0f) },
            new GradientAlphaKey[] { new GradientAlphaKey(alpha, 0.0f), new GradientAlphaKey(alpha, 1.0f) }
            );
        lineRenderer.colorGradient = gradient;
    }

    void Update()
    {
        LineRenderer lineRenderer = GetComponent<LineRenderer>();
        var t = Time.time;
        for (int i = 0; i < lengthOfLineRenderer; i++)
        {
            lineRenderer.SetPosition(i, new Vector3(i * 0.5f, Mathf.Sin(i + t), 0.0f));
        }
    }
}