Smooth mouse scroll camera zoom help?

I need help with a script that i need help on, i need it so when i scroll it zooms in very smoothly instead of the script now when you zoom in it is choppy looking and bad. Thanks! Here is my script:

Code (csharp):

1. function Update ()
2. {
3. //------------------Code for Zooming Out------------
4.    if (Input.GetAxis("Mouse ScrollWheel") <0)
5.        {
6.    if (Camera.main.fieldOfView<=50)
7.    Camera.main.fieldOfView +=2;
8.    if (Camera.main.orthographicSize<=20)
9.                                    Camera.main.orthographicSize +=0.5;
10.        }
11.  
12. //----------------Code for Zooming In-----------------------
13.     if (Input.GetAxis("Mouse ScrollWheel") > 0)
14.        {
15.     if (Camera.main.fieldOfView>20)
16.     Camera.main.fieldOfView -=2;
17.     if (Camera.main.orthographicSize>=1)
18.                                 Camera.main.orthographicSize -=0.5;
19.        }
20.        }

 

add a motion blur effect with ammount 0.2 to main camera and it will be good..

 

this didnt help at all, please can someone help with a better answer?

 

You can use the Mathf.Lerp(), like the code:

Code (csharp):

1. var distance : float = 60;
2.     var sensitivityDistance : float = 50;
3.     var damping : float = 5;
4.    
5.     var minFOV : float = 40;
6.     var maxFOV : float = 60;
7.    
8.     function Start ()
9.     {
10.         distance = camera.fieldOfView;
11.     }
12.    
13.     function Update ()
14.     {
15.         distance -= Input.GetAxis("Mouse ScrollWheel") * sensitivityDistance;
16.         distance = Mathf.Clamp(distance, minFOV, maxFOV);
17.         camera.fieldOfView = Mathf.Lerp(camera.fieldOfView, distance, Time.deltaTime * damping);
18.     }

 

I think its choppy because u increase the FOV by +=2 try playing with the value

If that still doesn't help try using LateUpdate()

Here is an alternative way to make a camera zoom in and out with the mouse wheel

Code (csharp):

1.  
2.         //Vector3 zoom variable.
3.         Vector3 zoom = transform.position;
4.  
5.         if(zoom.y < minZoom){
6.             zoom.y = minZoom;
7.             transform.position = zoom;
8.         }
9.         if(zoom.y > maxZoom){
10.             zoom.y = maxZoom;
11.             transform.position = zoom;
12.         }
13.    if(Input.GetAxis("Mouse ScrollWheel")< 0 || Input.GetKey(KeyCode.Alpha2)){
14.             if(zoom.y < maxZoom){
15.             transform.Translate(Vector3.back * Time.deltaTime * scrollSpeed);
16.             }
17.         }
18.  
19.         if(Input.GetAxis("Mouse ScrollWheel") > 0 || Input.GetKey(KeyCode.Alpha1)){
20.             if(zoom.y > minZoom){
21.             transform.Translate(Vector3.forward * Time.deltaTime * scrollSpeed);
22.             }
23.         }
24.  

I wrote this to work with an RTS style camera so I dunno if it will help at all just an idea. This moved the actual camera that was located at a fixed z position(If i remember correctly).

I personally rather move the camera than adjust the FieldOfView but you might not want to move the camera..