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Question by error031 · Feb 23, 2016 at 11:02 PM · javascriptlinerenderer

LineRenderer not drawing on game screen

I am learning LineRenderer, but i have come to problem. Whenever I start game with play button, and clicke somwhere on the screen, it only draws line from center of the screen to clicked point, instead drawing all mouse clicks. But if I pause game, in my editor all clicked points are connected, just like I wanted on game screen.

 var c1 : Color = Color.yellow;
 var c2 : Color = Color.red;
 var lengthOfLineRenderer : int = 20;
 var n : int = 1;
 var timer : float = 0;
 
 function Start() {
      var lineRenderer : LineRenderer = gameObject.AddComponent.<LineRenderer>();
      lineRenderer.material = new Material (Shader.Find("Particles/Additive"));
      lineRenderer.SetColors(c1, c2);
      lineRenderer.SetWidth(0.2,0.2);
      lineRenderer.SetVertexCount(lengthOfLineRenderer);
 }

 function Update() {
     var lineRenderer : LineRenderer = GetComponent.<LineRenderer>();
     if(Input.GetMouseButtonUp(0)){
         var mice = Camera.main.ScreenToWorldPoint(Input.mousePosition);
         lineRenderer.SetPosition(n, mice);
         n++;
     }
 }
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Answer by SunnyChow · Feb 24, 2016 at 02:18 AM

Are you using a perspective camera? the z value of Input.mousePosition should be 0, that's why the position of mice may be exactly at the position of camera.

Try something like this:

 var pos = Input.mousePosition;
 pos.z = 10;
 var mice = Camera.main.ScreenToWorldPoint(pos);


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avatar image error031 · Feb 25, 2016 at 02:13 PM 0
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Thanks, this solved my problem :)

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