How to create a line using two Vector3 points in unity?

Question

I know there exist some functions like lineRenderer etc, but I want to create a straight line in the scene using two points(in Vector3 form). I don't want to draw the line by using any key or using the mouse, I just want to see the line in the scene when I trigger some event or just after I click play button.

Can anyone help me?

Answer 1

//For creating line renderer object
lineRenderer = new GameObject("Line").AddComponent<LineRenderer>();
lineRenderer.startColor = Color.black;
lineRenderer.endColor = Color.black;
lineRenderer.startWidth = 0.01f;
lineRenderer.endWidth = 0.01f;
lineRenderer.positionCount = 2;
lineRenderer.useWorldSpace = true;    

//For drawing line in the world space, provide the x,y,z values
lineRenderer.SetPosition(0, new Vector3(x,y,z)); //x,y and z position of the starting point of the line
lineRenderer.SetPosition(1, new Vector3(x,y,z)); //x,y and z position of the starting point of the line