How do you adjust orthographic camera size using mouse wheel?

Look at this post to see how to use the scroll wheel, and then use that input to change the camera.orthographicSize.

 void Zoom(){
     if (Input.GetAxis ("RotellinaDelMouse") > 0 && (Input.GetAxis ("RotellinaDelMouse") + GetComponent<Camera> ().orthographicSize) > minimo) {
         for(int sensitivityOfScrolling=3; sensitivityOfScrolling>0; sensitivityOfScrolling--) GetComponent<Camera> ().orthographicSize--;
     }
     if (Input.GetAxis ("RotellinaDelMouse") < 0 && (Input.GetAxis ("RotellinaDelMouse") + GetComponent<Camera> ().orthographicSize) < massimo) {
         for(int sensitivityOfScrolling=3; sensitivityOfScrolling>0; sensitivityOfScrolling--) GetComponent<Camera> ().orthographicSize++;
     }
 }

@Maskaraid

Hope that can be usefull ;)

Obviusly you have to put that zoom() method on the update() one.

I did it and it work , its not fluid , as is just a incrementation/decrementation of size of orthographicSize of the camera , u can set for a wheelStep how much do u want increase or decrease your camera zoom!

Changing in the for the "sensitivityOfScrolling" makes it faster or slower ;) and thats it tell me if it was late :P

Ah and ofc replace the "RotellinaDelMouse" with how u named it on ( Edit>ProjectSettings>Inputs> "Mouse Wheel" ; it should be something like that ;)