How to scale objects individual with pinch zoom in ARCore and set a Min/Max scale?

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My code: public void _PinchtoZoom() { if (Input.touchCount == 2) { // Store both touches. Touch touchZero = Input.GetTouch(0); Touch touchOne = Input.GetTouch(1);

             // Find the position in the previous frame of each touch.
             Vector2 touchZeroPrevPos = touchZero.position - touchZero.deltaPosition;
             Vector2 touchOnePrevPos = touchOne.position - touchOne.deltaPosition;

             // Find the magnitude of the vector (the distance) between the touches in each frame.
             float prevTouchDeltaMag = (touchZeroPrevPos - touchOnePrevPos).magnitude;
             float touchDeltaMag = (touchZero.position - touchOne.position).magnitude;

             // Find the difference in the distances between each frame.
             float deltaMagnitudeDiff = prevTouchDeltaMag - touchDeltaMag;


             float pinchAmount = deltaMagnitudeDiff * 0.02f * Time.deltaTime;
             ARObject.transform.localScale += new Vector3(pinchAmount, pinchAmount, pinchAmount);


         }
     }

How do I set a Min/Max scale to the pinch zoom?

Answer 1

Best Answer

Answer by unity_XY9GfkpHMyaikw · May 28, 2019 at 08:05 AM

Update: This is the solution

public void pinchtoZoomScaleDown() {

         Transform Portal = GameObject.FindWithTag("ARObject").transform;
         Vector3 newScale = new Vector3();
         newScale.x = Mathf.Clamp(Portal.localScale.x - scalingSpeed, min.x, max.x);
         newScale.y = Mathf.Clamp(Portal.localScale.y - scalingSpeed, min.y, max.y);
         newScale.z = Mathf.Clamp(Portal.localScale.z - scalingSpeed, min.z, max.z);
         Portal.transform.localScale = newScale;

     
    
 }

 public void pinchtoZoomScaleUp()
 {
     Transform Portal = GameObject.FindWithTag("ARObject").transform;
     Vector3 newScale = new Vector3();
     newScale.x = Mathf.Clamp(Portal.localScale.x + scalingSpeed, min.x, max.x);
     newScale.y = Mathf.Clamp(Portal.localScale.y + scalingSpeed, min.y, max.y);
     newScale.z = Mathf.Clamp(Portal.localScale.z + scalingSpeed, min.z, max.z);
     Portal.transform.localScale = newScale;


 }

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How to scale objects individual with pinch zoom in ARCore and set a Min/Max scale?

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