Unity Compile All Materials

LoadAllMaterials.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

static class LoadAllMaterials 
{
    static readonly string title = "Load All Materials";

    static GameObject obj;
    static MeshRenderer sphere_renderer;
    static Camera cam;
    static IEnumerator coroutine;

    [MenuItem("Edit/Render Pipeline/Load All Materials")]
    static void LoadAll()
    {
        obj = GameObject.CreatePrimitive(PrimitiveType.Sphere);
        sphere_renderer = obj.GetComponent<MeshRenderer>();
        cam = SceneView.lastActiveSceneView.camera;
        obj.transform.position = cam.transform.position + cam.transform.forward * 1.2f;

        coroutine = LoadCoroutine();
        EditorApplication.update += Load;
    }

    static void Load()
    {
        coroutine.MoveNext();
    }

    static List<Material> cachedMaterials;

    static IEnumerator LoadCoroutine()
    {
        EditorUtility.DisplayProgressBar(title, "", 0.0f);
        cachedMaterials = new List<Material>();

        var allRenderers = Object.FindObjectsOfType<Renderer>();
        int i = 0;
        int count = allRenderers.Length - 1;

        foreach (var renderer in allRenderers)
        {
            int j = 0;
            foreach (var material in renderer.sharedMaterials)
            {
                if (material == null || cachedMaterials.Contains(material))
                    continue;

                float t = (float)i / count;
                if(EditorUtility.DisplayCancelableProgressBar(title, renderer.gameObject.name + " : " + material.name + " (" + j+ "/" +renderer.sharedMaterials.Length+")", t))
                {
                    EditorUtility.ClearProgressBar();
                    Object.DestroyImmediate(obj);
                    EditorApplication.update -= Load;
                    yield break;
                }
                sphere_renderer.sharedMaterial = material;
                cachedMaterials.Add(material);
                j++;
                yield return null;
            }
            i++;
        }

        EditorUtility.ClearProgressBar();
        Object.DestroyImmediate(obj);
        EditorApplication.update -= Load;

    }
}