Parallax effect is widely used in web design, which makes two-dimensional images with three-dimensional effect. This function is going to be used on my RCA group project for a comic about Precariat.

Here is an impressive example named Protanopia which uses parallax effect well:

The C# Script to realize it mainly uses transform.position with Input.mousePosition to interact.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class parallaxEffect : MonoBehaviour {
    public float Margin;
    public float Layer;
    float x;
    float y;
    float Easing = 0.2f;
    Vector3 pos;
    void Start () {
        pos = transform.position;
    }
    
    void Update () {
        float targetX = Input.mousePosition.x – Screen.width / 2f;
        float dx = targetX – x;
        x += dx * Easing;
        float targetY = Input.mousePosition.y – Screen.height / 2f;
        float dy = targetY – y;
        y += dy * Easing;
        Vector3 direction = new Vector3(x, y, 0f);
        Vector3 depth = new Vector3(0f, 0f, Layer);
        this.transform.position = pos – direction/500f * Margin + depth;
    }
}