Unity - How to get access and change the camera distance while using Cinemachine "3rd person follow" (C#)

Cinemachine https://unity.com/unity/features/editor/art-and-design/cinemachine

saves time by letting you create difference kinds of cameras.

Let's say you want to use the input system and scroll the mouse to change the camera distance.

I couldn't find a clear solution online so I thought I share:

First make sure you have:

A player GameObject.

A GameObject with a CinemachineVirtualCamera, set to: 

* follow the player.

* its "Body" set to "3rd Person Follow".

Note: You have other body properties as well to chose from:

3rd Person follow

Framing Transposer

Hard Lock to Target

Orbital Transposer

Tracked Dolly

Transposer

We are focusing on the "3rd Person Follow" now.

In the script that you add as component to the player GameObject:

Declaration: 

private GameObject _playerFollowCamera;

public CinemachineVirtualCamera _cinemachineVirtualCamera;

In private void Start() :

_playerFollowCamera = GameObject.Find("PlayerFollowCamera");

_cinemachineVirtualCamera = _playerFollowCamera.GetComponent<CinemachineVirtualCamera>();

          In your method, called when scrolling for example: 

CinemachineComponentBase cinemachineComponentBase = _cinemachineVirtualCamera.GetCinemachineComponent(CinemachineCore.Stage.Body);

if (cinemachineComponentBase is Cinemachine3rdPersonFollow)

{

(cinemachineComponentBase as Cinemachine3rdPersonFollow).CameraDistance = yourCameraDistanceValue;

}

Or as one line:

(GameObject.Find("PlayerFollowCamera").GetComponent<CinemachineVirtualCamera>().GetCinemachineComponent(CinemachineCore.Stage.Body) 

as Cinemachine3rdPersonFollow).CameraDistance = yourCameraDistanceValue;

"Cinemachine3rdPersonFollow" above is changed depending on which body property you are using.