Enable/ Disable Line Renderer points

Question

I have a Line Renderer component with 4 points, I would like to disable and enable the last 2 points at a certain time. My question is, how would I in code (C#) enable and disable individual Line Renderer points?

Thanks in advance!

Answer 1

As mentioned in a comment above, you can't enable or disable individual points in the LineRenderer. But, you can change/add/remove points dynamically, which can get a similar effect.

Here's a sample script that builds a random zig-zag path by adding segments to the end of the line, then progressively chops the line back until it disappears completely.

[RequireComponent(typeof(LineRenderer))]
public class RandomZig : MonoBehaviour {

    LineRenderer _line;

    public int maxSize = 30;

    public float delay = 0.25f;

    // Use this for initialization
    void Start () {
        _line = GetComponent<LineRenderer>();
        StartCoroutine(AddSegments());
    }

    IEnumerator AddSegments()
    {
        float previous = 0f;
        for(int i = 0; i < maxSize; i++)
        {
            _line.SetVertexCount(i + 1);

            float wander = previous + (Random.value - 0.5f) * 2f;

            _line.SetPosition(i, Vector3.forward * i + Vector3.right * wander);
            // Note you can use SetPositions if you need to assign a whole array at once.

            previous = wander;

            yield return new WaitForSeconds(delay);
        }

        StartCoroutine(RemoveSegments());
    }

    IEnumerator RemoveSegments()
    {
        for(int i = maxSize - 1; i > 0; i--)
        {
            _line.SetVertexCount(i);

            yield return new WaitForSeconds(delay);
        }
    }
}