The main problem now is I can zoom in BUT not zooming out. Whenever I open the fingers, the camera zooms in perfectly, but when I close the fingers, it zooms in as well! It just doesn’t zoom out. I’ve got the feeling I am almost there.

Is there anything to do with the Translate function? I tried insert a “-” in front of the zoomDist, it still stays the same. Thanks for your help.

P.S. I did play around with the minDist and maxDist value, it seems that they just affect the speed of the zooming and doesn’t limit the position of the camera.

To be honest, I am about a year removed from this code and I currently do not have the time to refresh my Unity scripting skills. Unfortunately, I really don’t have much to offer in the way of advice.

I did notice, however, your minDist is zero. I always had a min distance greater than zero.

Good luck with your project.

It’s good for someone like you to share your ideas in unity as shown in Four³. I really appreciate that especially there is the whole example javascript shown there.

However, I have encountered some problems when trying to apply your sample script at my end. I am trying to zoom the main camera in and out within a specify distance BUT all I can do is just zoom the camera in and cannot zoom it out. AND, it seems that the line “slide = Mathf.Clamp(mag + slide, minDist, maxDist);” is used to adjust the speed of the zooming and not the distance constraints.

Here is my code:

[CODE]
private var pinch:boolean;
static var touch:Touch;
private var touch2:Touch;
private var curDist:Vector2;
private var prevDist:Vector2;
private var actualDist:float;
private var moveFactor:float;
private var mag:float;
private var maxDist:float;
private var minDist:float;
private var zoomDist:Vector3;
var target:Transform;

function Start() {
resetGamePlay();
}

function resetGamePlay() {

pinch = false;
zoomDist = Vector3.zero;
minDist = 0;
maxDist = 10;
moveFactor = 0.05;

transform.LookAt(target);
}

function FixedUpdate(){

if(Input.touchCount == 2){
pinch = false;
touch = Input.GetTouch(0);
touch2 = Input.GetTouch(1);
zoomDist = Vector3.zero;

if(touch.phase == TouchPhase.Moved && touch2.phase == TouchPhase.Moved){

curDist = touch.position – touch2.position;
prevDist = (touch.position – touch.deltaPosition) – (touch2.position – touch2.deltaPosition);
actualDist = moveFactor * (prevDist.magnitude – curDist.magnitude);
mag = transform.position.magnitude;
actualDist = Mathf.Clamp(mag + actualDist, minDist, maxDist);
zoomDist = Vector3.forward * actualDist;

pinch = true;
}
}
}

function Update(){

if(pinch){
transform.Translate (zoomDist);
transform.LookAt(target);
pinch = false;
}
}
[/CODE]

I am looking forward to your reply and really appreciate it if you can show me a correct way. Thank you in advance.

Best regards,
Victor Yew

Best of luck.

Bob