1

Hello

i have this very simple camera scripe

var cam : Camera;

function Update(){
    cam.fieldOfView += 5 * Input.GetAxis("Mouse ScrollWheel");
}

I need to limit the max zoom in and out of the camera.

If someone can point me in the right direction, on how i would go about doing this.

Thanks in advance

4

var cam : Camera;
var min : float; //Min FOV (zoomed in)
var max : float; //Max FOV (zoomed out)

function Update(){
    cam.fieldOfView += 5 * Input.GetAxis("Mouse ScrollWheel");

    //Use Mathf.Clamp to keep the value always lower than 'max' and greater than 'min'
    cam.fieldOfView = Mathf.Clamp(cam.fieldOfView, min, max);
}
5

Here is the C# version of @LukaKotar’s script.

public Camera camera;
float min;
float max;

void Update() {
	cam.fieldOfView += 5 * Input.GetAxis("Mouse ScrollWheel");
	cam.fieldOfView = Mathf.Clamp(cam.fieldOfView, min, max);
}
2

var distanceMin = 4;
var distanceMax = 45;

function LateUpdate () {
if (target) {
distance = Mathf.Clamp(distance - Input.GetAxis(“Camera Zoom”)*5, distanceMin, distanceMax);
if (Input.mousePosition.x > Screen.width - 2 || Input.mousePosition.x < 2 || Input.mousePosition.y > Screen.height - 2 || Input.mousePosition.y < 2) DoIT = 1;
else DoIT = 0;
if (FirstLogin == 0) { FirstLogin = 1; DoIT = 1; }
if (DoIT == 1) {
if (Input.mousePosition.x > Screen.width - 2) x += 60 * xSpeed * 0.02 * Time.deltaTime;
if (Input.mousePosition.x < 2) x -= 60 * xSpeed * 0.02 * Time.deltaTime;
if (Input.mousePosition.y < 2) y += 30 * ySpeed * 0.02 * Time.deltaTime;
if (Input.mousePosition.y > Screen.height - 2) y -= 30 * ySpeed * 0.02 * Time.deltaTime;
y = ClampAngle(y, yMinLimit, yMaxLimit);

var rotation = Quaternion.Euler(y, x, 0);
var position = rotation * Vector3(0.0, 0.0, -distance) + target.position;
var hit : RaycastHit;
if (Physics.Linecast (target.position, transform.position, hit)) {
distance -= hit.distance;
}

    transform.rotation = rotation;
    transform.position = position;
    lastPos = transform.position - target.position;
    }
    else transform.position = target.transform.position + lastPos;

}
}

static function ClampAngle (angle : float, min : float, max : float) {
if (angle < -360)
angle += 360;
if (angle > 360)
angle -= 360;
return Mathf.Clamp (angle, min, max);
}

function StartTheCam() {
distance = Mathf.Clamp(distance - Input.GetAxis(“Camera Zoom”)*5, distanceMin, distanceMax);
var angles = transform.eulerAngles;
x = angles.y;
y = angles.x;
y = ClampAngle(y, yMinLimit, yMaxLimit);
var rotation = Quaternion.Euler(y, 0, 0);
var position = rotation * Vector3(0.0, 0.0, -distance) + target.position;

transform.rotation = rotation;
transform.position = position;
lastPos = transform.position - target.position;
transform.position = target.transform.position + lastPos;
}

i dont really know how to do it but this works
but the zoom doesnt show it has worked till you move the camera again. it mightjust be in the wrong spot lol

3

maybe something like this?

pseudo code not expect can work at now, just to have a line of think. Hope can help

var cam : Camera;
var  Dist : Float;
var minDist : Float;
var maxDist : Float;
var zoom : boolean;

 function update

     if Dist<=minDist = false
         if Dist>=maxDist = false

if {
      input scrollMouseDown
       Zoomin;
    }

if {
   input scrollMouseUP
       ZoomOut;
   }
function ZoomIn (){
  cam.fieldOfView += 5
}

function ZoomOut (){
  cam.fieldOfView -= 5
}

good look