Camera Out of Screen Mirroring

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I have this slider which controlling position of the colorful object’s parent gameObject. I wan’t to mirroring screen like the second picture. How can I do this?

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class SliderController : MonoBehaviour {

	public Slider slider;
	Vector3 v3 ;

	void Start () {
		v3 = new Vector3(0,0,0);
	}
	public void ChangeValue () {
		v3 = new Vector3(slider.value,0,0);
		gameObject.transform.position = v3;
	}
}

Need answer, please…