Little debug script for helping investigate Cinemachine blend issues

CinemachineDebugger.cs

using System.Text;
using Cinemachine;
using UGS.unityutils.attributes;
using UnityEngine;

namespace UGS.snwscf.camera {
	public sealed class CameraDebugger : MonoBehaviour {
#region serialized

		[SerializeField, NonNull]
		private CinemachineBrain brain = null;

		[SerializeField]
		private CinemachineVirtualCameraBase[] cameras = null;

		[SerializeField]
		private float guiY = 100f;

		[SerializeField]
		private float guiWidth = 500f;

		[SerializeField]
		private float guiPerElementHeight = 20f;

		[SerializeField]
		private float guiLinesPerElement = 3;

		[SerializeField]
		private int guiExtraElements = 3;

#endregion serialized
#region Unity callbacks

		public void Awake() {
#if !UNITY_EDITOR
			Destroy(this);
			return;
#endif
		}

		public void OnGUI() {
			if (null == guiStyle) {
				guiStyle = new GUIStyle(GUI.skin.box);
				guiStyle.alignment = TextAnchor.UpperLeft;
			}
			sb.Clear();
			var num = CinemachineCore.Instance.VirtualCameraCount;
			var blend = brain.ActiveBlend;
			sb.AppendLine($"Brain:\n  active:{brain.ActiveVirtualCamera}\n  live:{brain.ActiveVirtualCamera}");
			if (null != blend) {
				sb.AppendLine($"  Blend done?:{blend.IsComplete} time:{blend.TimeInBlend} between\n   A:{blend.CamA}\n   B:{blend.CamB}");
			} else {
				sb.AppendLine("(no blend)");
			}
			sb.AppendLine("\n  All:");
			for (var i = 0; i < num; i++) {
				sb.AppendLine($"    {i}: {CinemachineCore.Instance.GetVirtualCamera(i).Name}");
			}
			sb.AppendLine();
			foreach (var cam in cameras) {
				if (cam.gameObject.activeInHierarchy && cam.enabled) {
					sb.Append("<color=yellow>");
				};
				sb.AppendLine($"{cam.Name}: GO:{colouredBool(cam.gameObject.activeInHierarchy)} CMP:{colouredBool(cam.enabled)} PRI:{cam.Priority}");
				sb.AppendLine($"  valid:{cam.IsValid} quality:{cam.State.ShotQuality}\n");
				if (cam.gameObject.activeInHierarchy && cam.enabled) {
					sb.Append("</color>");
				}
			}
			GUI.Box(new Rect(Screen.width - guiWidth + 10, guiY, guiWidth, guiPerElementHeight * (1 + num + guiLinesPerElement * (cameras.Length + guiExtraElements))), sb.ToString(), guiStyle);
		}

#endregion Unity callbacks
#region public

#endregion public
#region internal

#endregion internal
#region private

		[ContextMenu("Add all")]
		private void addAll() {
			cameras = FindObjectsOfType<CinemachineVirtualCameraBase>();
		}

		private string colouredBool(bool v, string y = "Y", string n = "N") {
			return v ? $"<color=green>{y}</color>" : $"<color=red>{n}</color>";
		}

		private readonly StringBuilder sb = new StringBuilder();

		private GUIStyle guiStyle = null;

#endregion private
	}
}