Camera zoom smoothing

Question

So I have a rather basic camera setup and I would like to implement zoom smoothing in it but I'm not exactly sure how. I believe Mathf.Lerp should be used but my attempts to implement it have failed so far. Here is the code:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class CameraControl : MonoBehaviour
 {
     public Transform target;
     public Vector3 offset;
     public float currentZoom = 2f;
     public float pitch = 1.75f;
     public float zoomSpeed = 0.85f;
     public float minZoom = 1.5f;
     public float maxZoom = 3f;
 
     public float yawSpeed = 100f;
 
     private float currentYaw = 0f;
 
     private void Update()
     {
         currentZoom -= Input.GetAxis("Mouse ScrollWheel") * zoomSpeed;
         currentZoom = Mathf.Clamp(currentZoom, minZoom, maxZoom);
         
         if (Input.GetButton("Mouse MiddleClick"))
         {
             currentYaw += Input.GetAxis("Mouse X") * yawSpeed * Time.deltaTime;
         }
         
     }
     private void LateUpdate()
     {
         transform.position = target.position - offset * currentZoom;
         transform.LookAt(target.position + Vector3.up * pitch);
 
         transform.RotateAround(target.position, Vector3.up, currentYaw);
     }
 }

Answer 1

 public class CameraControl : MonoBehaviour
  {
      public Transform target;
      public Vector3 offset;
      private float desiredZoom = 2f;
      private float currentZoom = 2f;
      public float pitch = 1.75f;
      public float zoomSpeed = 0.85f;
      public float zoomLerpSpeed = 0.85f;
      public float minZoom = 1.5f;
      public float maxZoom = 3f;
  
      public float yawSpeed = 100f;
  
      private float currentYaw = 0f;
  
      private void Update()
      {
          desiredZoom -= Input.GetAxis("Mouse ScrollWheel") * zoomSpeed;
          desiredZoom = Mathf.Clamp(desiredZoom, minZoom, maxZoom);
          currentZoom = Mathf.Lerp(currentZoom, desiredZoom, zoomLerpSpeed);
          
          if (Input.GetButton("Mouse MiddleClick"))
          {
              currentYaw += Input.GetAxis("Mouse X") * yawSpeed * Time.deltaTime;
          }
          
      }
      private void LateUpdate()
      {
          transform.position = target.position - offset * currentZoom;
          transform.LookAt(target.position + Vector3.up * pitch);
  
          transform.RotateAround(target.position, Vector3.up, currentYaw);
      }
  }

Camera zoom smoothing

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