title: How to create a line using two Vector3 points in unity?
body: <p>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.</p>
  
  <p>Can anyone help me?</p>