MetacityTemplate/Assets/MetaCity.BundleKit.Editor/VRMExport/VRMMaterialBundleExporter.cs

using System.Collections.Generic;
using System.Linq;
using UnityEditor;
using UnityEngine;
namespace MetaCity.BundleKit.Editor.VRM
{
public class VRMMaterialBundleExporter
{
    public static (List<BuildCatalog>,AssetBundleManifest) BuildMaterialBundle(string vrmModelName,IEnumerable<object> materials,List<BuildCatalog> catalogs)
    {
        var platform = EditorUserBuildSettings.activeBuildTarget;

        List<AssetBundleBuild> curBundleBuild = new List<AssetBundleBuild>();
        //Select referenced materials to one bundle
        var resourcePaths=materials.Select(x=>AssetDatabase.GetAssetPath(x as Material)).ToList();
        var builder = Utilities.CreateNewAssetBundleBuild(vrmModelName, resourcePaths.ToArray());
        curBundleBuild.Add(builder);
        var manifest = BuildPipeline.BuildAssetBundles(Constants.AvatarBundleFolderPath, curBundleBuild.ToArray(), BuildAssetBundleOptions.None, platform);
        var catalog = CatalogUtilities.CreateMaterialCatalog(platform, vrmModelName, manifest);
        if (catalog != null)
        {
            catalogs.Add(catalog);
        }
        return (catalogs,manifest);
    }
}
}