Converting mouse(touch) position with ScreenToWorldPoint doesn't work.

Question

Hello dear people. Googled as much as i could, no solution. Aim: change touch coordinates from pixels(screen left-bottom corner x0) to game coordinates in 3D environment, although i don't need Z pos because the camera is not moving and i just need to track X pos and with current state my clicks(touches) are always at positive X. Code:

 void Update()
     {   if (Input.touchCount > 0)
         {
             Touch touch = Input.GetTouch(0);
             Vector3 touchPos = Camera.main.ScreenToWorldPoint(touch.position);
             touchPos.z = 3;
             if (touch.phase == TouchPhase.Stationary)
             {
                 if (touch.position.x < 0)
                     turnSpeed = 8f;
                 else if (touch.position.x > 0)
                     turnSpeed = -8f;
             }
             
             if (touch.phase == TouchPhase.Ended)
             {
                 turnSpeed = 0f;
             }   
         }                          
     }

Camera pos: x: 0.027 y: 3.847 z : -2.238 I've tried setting touchPos.z = from -3 to 10., no luck.

Answer 1

Best Answer

Answer by aeffoa · May 02 at 05:45 PM

The solution was to make two changes:

1) change If (touch.position.x <0) to if (touchPos.x < 0);

2) Set Z value before/when calling ScreenToWorldPoint. I went with Vector3 touchPos = Camera.main.ScreenToWorldPoint(new Vector3(touch.position.x, touch.position.y, 0.3f));

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Converting mouse(touch) position with ScreenToWorldPoint doesn't work.

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