How do you adjust orthographic camera size using mouse wheel?

Questions & Answers
1

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.

2

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

3

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

@Maskaraid

Hope that can be usefull :wink:

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 :wink: and thats it tell me if it was late :stuck_out_tongue:

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