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Question by Maskaraid · Sep 13, 2014 at 08:42 PM · orthographicmousewheel

How do you adjust orthographic camera size using mouse wheel?

I'm making a 2D side scroller and I want a way to be able to zoom in and out based on how much a player scrolls up or down.

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Answer by Fanttum · Sep 13, 2014 at 08:56 PM

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

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Answer by Sabani · Jan 04, 2017 at 11:16 AM

 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 ;)

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