Camera Field of View

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     float fov;
     public Transform obj1, obj2;
     float distance;
 
 
     // Use this for initialization
     void Start () {
 
         Camera.main.fieldOfView = fov;
         fov = 60;
         
     }
     
     // Update is called once per frame
     void Update () {
 
         distance = Vector3.Distance (obj1.position, obj2.position);
         Debug.Log (distance);
         fov = 60;
 
         if (distance < 4) {
             fov = Mathf.Lerp (fov, 40, Time.deltaTime);
         } else {
             fov = Mathf.Lerp (fov, 60, Time.deltaTime);
         }
 
         if (distance > 10) {
             fov = Mathf.Lerp (fov, 70, Time.deltaTime);
         } else {
             fov = Mathf.Lerp (fov, 60, Time.deltaTime);
         }
         
     }
 }

Answer 1

Best Answer

Answer by Bunny83 · Nov 08, 2017 at 11:41 PM

Your problem is that you never actually set the fieldOfView of the Camera. In addition you have two seperate distance checks and each one has an else case. So you will always execute two lerps at the same time which will most likely doesn't give you the desired effect. Further more you set your "fov" variable to 60 each update which renders the lerping and your conditions useless. You probably wanted to do something like:

 void Update()
 {
     distance = Vector3.Distance (obj1.position, obj2.position);
     if (distance > 10)
     {
         fov = Mathf.Lerp (fov, 70, Time.deltaTime);
     }
     else if (distance > 4)
     {
         fov = Mathf.Lerp (fov, 60, Time.deltaTime);
     }
     else
     {
         fov = Mathf.Lerp (fov, 40, Time.deltaTime);
     }
     Camera.main.fieldOfView = fov;
 }

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MaxGuernseyIII · Nov 08, 2017 at 11:53 PM 0

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I don't understand this use of $$anonymous$$athf.Lerp. It seems to me that it should make the b input an asymptote rather than a destination because it is constantly moving the a input and always keeping the t input small.

MaxGuernseyIII MaxGuernseyIII · Nov 08, 2017 at 11:54 PM 0

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Oh, I see. You're just using the lines OP wrote...

Answer 2

Answer by JasonBennett · Oct 29, 2017 at 03:43 PM

@redrumx

My guess is that you need to remove the line of code at the start of Update() that sets your fov variable to 60. Leave it in Start(). Otherwise your program will conditionally do the Lerp every frame, and then reset the fov value at the start of the next frame, so effectively you will never see the new fov.

      void Update () {
  
          distance = Vector3.Distance (obj1.position, obj2.position);
          Debug.Log (distance);
          // Remove this --> fov = 60;

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redrumx · Oct 29, 2017 at 04:11 PM 0

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@curious$$anonymous$$oala Still never changes. Even if I put manually field of view for example 30 before clicking play, it's still 30 when I click play.

Camera Field of View

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