How to make the camera follow the character without dragging the background along with it in screen space camera render mode in Unity? - unity3d

Question

I am making a 2D platfomer and I am using screen space-camera render mode in canvas. Now the background fits inside the screen in every aspect ratio perfectly. But when I make the camera follow the character, the background also comes with it, making the character look like it is not moving.
Code for player movement:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Player : MonoBehaviour
{
private Rigidbody2D myRigidbody;
[SerializeField]
private float movementSpeed;
// Use this for initialization
void Start ()
{
myRigidbody = GetComponent<Rigidbody2D>();
}
// Update is called once per frame
void FixedUpdate ()
{
float horizontal = Input.GetAxis ("Horizontal");
HandleMovement(horizontal);
}
private void HandleMovement(float horizontal)
{
myRigidbody.velocity = new Vector2 (horizontal * movementSpeed, myRigidbody.velocity.y);
}
}
Here is the camera follow code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CameraFollow : MonoBehaviour
{
public Transform target;
Vector3 velocity = Vector3.zero;
public float smoothTime = 0.15f;
public bool YMaxEnabled = false;
public float YMaxValue = 0;
public bool YMinEnabled = false;
public float YMinValue = 0;
public bool XMaxEnabled = false;
public float XMaxValue = 0;
public bool XMinEnabled = false;
public float XMinValue = 0;
void FixedUpdate()
{
Vector3 targetPos = target.position;
//vertical
if (YMinEnabled && YMaxEnabled)
{
targetPos.y = Mathf.Clamp (target.position.y, YMinValue, YMaxValue);
}
else if (YMinEnabled)
{
targetPos.y = Mathf.Clamp (target.position.y, YMinValue, target.position.y);
}
else if (YMaxEnabled)
{
targetPos.y = Mathf.Clamp (target.position.y, target.position.y, YMaxValue);
}
//horizontal
if (XMinEnabled && XMaxEnabled)
{
targetPos.x = Mathf.Clamp (target.position.x, XMinValue, XMaxValue);
}
else if (YMinEnabled)
{
targetPos.x = Mathf.Clamp (target.position.x, XMinValue, target.position.x);
}
else if (YMaxEnabled)
{
targetPos.x = Mathf.Clamp (target.position.x, target.position.x, XMaxValue);
}
targetPos.z = transform.position.z;
transform.position = Vector3.SmoothDamp (transform.position, targetPos, ref velocity, smoothTime);
}
}

Answer 1

If you use screen space camera, then the Canvas will move with the camera. I would suggest using Sprite Renderer instead of Canvas panel for level background. If you need to scale the Sprite according to screen, do it from the code. Also, for scrolling the background, you can follow this tutorial:
https://unity3d.com/learn/tutorials/topics/2d-game-creation/2d-scrolling-backgrounds