Unity interior scene camera fade script

InteriorCamera.cs

using UnityEngine;
using UnityEngine.UI;

public class InteriorCamera : MonoBehaviour {
  public Camera cam; // Interior layer w/ culling
  public RenderTexture texture;
  public RawImage output; // UI layer + UI Camera Stack
  public float duration = 0.5f;
  public LeanTweenType easeIn = LeanTweenType.easeInCubic;
  public LeanTweenType easeOut = LeanTweenType.easeOutCubic;

  [Header("State")]
  public bool active = false;

  float aspect = 1f;
  int width = 3840;
  int height = 2160;
  Color color = Color.white;

  void Start () {
    Init();
  }

  void Init () {
    aspect = Camera.main.aspect;
    width = Camera.main.pixelWidth;
    height = Camera.main.pixelHeight;
    texture = new RenderTexture(width, height, 32);
    cam.targetTexture = texture;
    output.texture = texture;
  }

  void LateUpdate () {
    if (!active) return;
    if (Camera.main.aspect != aspect || Camera.main.pixelWidth != width) {
      Init();
    }
  }

  [ContextMenu("Fade In")]
  public void FadeIn () {
    if (active) return;
    cam.enabled = true;
    output.enabled = true;
    LeanTween.value(gameObject, UpdateFade, 0f, 1f, duration)
      .setEase(easeIn);
    active = true;
  }

  [ContextMenu("Fade Out")]
  public void FadeOut () {
    if (!active) return;
    LeanTween.value(gameObject, UpdateFade, 1f, 0f, duration)
      .setEase(easeOut)
      .setOnComplete(() => {
        cam.enabled = false;
        output.enabled = false;
      });
    active = false;
  }

  void UpdateFade (float n) {
    color.a = n;
    output.color = color;
  }
}