Smoothen line on linerender

Question

I've created a square using linerenderer but my problem now is that the line is not smooth. see below picture. I've tried enabling anti-aliasing and setting lr.numCapVertices to no avail.

 private void DrawLine()
{
GameObject myLine = new GameObject();
myLine.transform.position = start;
myLine.AddComponent<LineRenderer>();
lr = myLine.GetComponent<LineRenderer>();
lr.material = new Material(Shader.Find("Sprites/Default"));     
lr.positionCount = 4;
lr.startWidth = .1f;
lr.endWidth = .1f;

lr.SetPosition(0, new Vector3(1, 0, 0));
lr.SetPosition(1, new Vector3(2, 0, 0));
lr.SetPosition(2, new Vector3(2, -1, 0));
lr.SetPosition(3, new Vector3(1, -1, 0));
lr.loop = true;


Gradient gradient = new Gradient();
gradient.SetKeys(
    new GradientColorKey[]
    {
        new GradientColorKey(Color.red, 0.25f),
        new GradientColorKey(Color.green, 0.50f),
        new GradientColorKey(Color.blue, 0.75f),
        new GradientColorKey(Color.yellow, 1f),
    },
        new GradientAlphaKey[] { new GradientAlphaKey(1f, 0.0f)

    }
    );
lr.colorGradient = gradient;

}

Answer 1

Well I don't exactly know the cause of the problem but when i try to manipulate the values of linerenderer's positions, I find that when gap between the point is less then the value of 1 (-1 or 1) then we will get this weird behaviour.

however, when I increase the gap between the points then the line became crispy smooth.

Here are the some test results.

Now I understand completely that it is not a solution to the problem, And I am glad to know the explaination myself from anyone who know the reason that why is this happening but for now just change the position of your linerenderers points with distance greater than 1 unit.