MipStreamingChecker.cs

/*
 * MipStreamingChecker
 * Simple tool to check if mipmap streaming is working or not
 * https://gist.github.com/anatawa12/ca7aeb6f8a5196a1bf66e912733ec12a
 *
 * Click `Tools/anatawa12 gists/MipStreamingChecker` to open this window.
 *
 * MIT License
 * 
 * Copyright (c) 2023 anatawa12
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#if UNITY_EDITOR && (!ANATAWA12_GISTS_VPM_PACKAGE || GIST_ca7aeb6f8a5196a1bf66e912733ec12a)

using System;
using System.Collections.Generic;
using JetBrains.Annotations;
using UnityEditor;
using UnityEngine;
using Object = UnityEngine.Object;

namespace anatawa12.gists
{
    internal class MipStreamingChecker : EditorWindow
    {
        private const string GIST_NAME = "MipStreamingChecker";

        [MenuItem("Tools/anatawa12 gists/" + GIST_NAME)]
        static void Create() => GetWindow<MipStreamingChecker>(GIST_NAME);

        [CanBeNull] public GameObject root = null;
        public Texture2D[] textures = Array.Empty<Texture2D>();
        Vector2 scrollPos = Vector2.zero;

        private void OnGUI()
        {
            root = (GameObject)EditorGUILayout.ObjectField("Root", root, typeof(GameObject), true);
            if (GUILayout.Button("Find Textures"))
            {
                var list = new List<Texture2D>();
                if (root != null)
                {
                    foreach (var renderer in root.GetComponentsInChildren<Renderer>(true))
                    {
                        foreach (var mat in renderer.sharedMaterials)
                        {
                            if (mat == null) continue;
                            foreach (var name in mat.GetTexturePropertyNameIDs())
                            {
                                var tex = mat.GetTexture(name) as Texture2D;
                                if (tex != null && !list.Contains(tex))
                                    list.Add(tex);
                            }
                        }
                    }
                }
                textures = list.ToArray();
            }

            EditorGUILayout.LabelField("Textures:");
            scrollPos = EditorGUILayout.BeginScrollView(scrollPos);
            foreach (var tex in textures)
            {
                EditorGUILayout.BeginHorizontal();
                EditorGUILayout.ObjectField(tex, typeof(Texture2D), false, GUILayout.Height(64), GUILayout.Width(64));
                if (tex != null)
                {
                    EditorGUILayout.BeginVertical();
                    EditorGUILayout.LabelField("Loaded Mip Level: " + tex.loadedMipmapLevel);
                    EditorGUILayout.LabelField("Desired Mip Level: " + tex.desiredMipmapLevel);
                    EditorGUILayout.LabelField("Loading Mip Level: " + tex.loadingMipmapLevel);
                    EditorGUILayout.LabelField("Calculated Mip Level: " + tex.calculatedMipmapLevel);
                    EditorGUILayout.EndVertical();
                }
                EditorGUILayout.EndHorizontal();
            }
            EditorGUILayout.EndScrollView();
        }
    }
}

#endif