[1.0] thumbnail の名前が無い時に SubAssetKey を作るのに失敗するのを修正

Assets/VRM10/Runtime/IO/Texture/Vrm10TextureDescriptorGenerator.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using UniGLTF;
 using UnityEngine;
@@ -68,6 +69,8 @@ public TextureDescriptorSet Get()
             }
         }
 
+        public const string THUMBNAIL_NAME = "__VRM10_thumbnail__";
+
         /// <summary>
         /// VRM-1 の thumbnail テクスチャー。gltf.textures ではなく gltf.images の参照であることに注意(sampler等の設定が無い)
         /// </summary>
@@ -81,14 +84,25 @@ public static bool TryGetMetaThumbnailTextureImportParam(GltfData data, UniGLTF.
 
             var imageIndex = vrm.Meta.ThumbnailImage.Value;
             var gltfImage = data.GLTF.images[imageIndex];
-            var name = TextureImportName.GetUnityObjectName(TextureImportTypes.sRGB, gltfImage.name, gltfImage.uri);
+
+            // data.GLTF.textures は前処理によりユニーク性がある
+            // unique な名前を振り出す
+            var used = new HashSet<string>(data.GLTF.textures.Select(x => x.name));
+            var imageName = gltfImage.name;
+            if (string.IsNullOrEmpty(imageName))
+            {
+                imageName = THUMBNAIL_NAME;
+            }
+            var uniqueName = GlbLowLevelParser.FixNameUnique(used, imageName);
+
+            var objectName = TextureImportName.GetUnityObjectName(TextureImportTypes.sRGB, uniqueName, gltfImage.uri);
 
             GetTextureBytesAsync getThumbnailImageBytesAsync = () =>
             {
                 var bytes = data.GLTF.GetImageBytes(data.Storage, imageIndex);
                 return Task.FromResult(GltfTextureImporter.ToArray(bytes));
             };
-            var texDesc = new TextureDescriptor(name, gltfImage.GetExt(), gltfImage.uri, Vector2.zero, Vector2.one, default, TextureImportTypes.sRGB, default, default,
+            var texDesc = new TextureDescriptor(objectName, gltfImage.GetExt(), gltfImage.uri, Vector2.zero, Vector2.one, default, TextureImportTypes.sRGB, default, default,
                getThumbnailImageBytesAsync, default, default,
                default, default, default
                );

Assets/VRM10/Runtime/Migration/MigrationVrm.cs

@@ -38,7 +38,7 @@ public static byte[] Migrate(JsonNode json, ArraySegment<byte> bin)
                 var vrm1 = new UniGLTF.Extensions.VRMC_vrm.VRMC_vrm();
 
                 // meta (required)
-                vrm1.Meta = MigrationVrmMeta.Migrate(vrm0["meta"]);
+                vrm1.Meta = MigrationVrmMeta.Migrate(gltf, vrm0["meta"]);
                 // humanoid (required)
                 vrm1.Humanoid = MigrationVrmHumanoid.Migrate(vrm0["humanoid"]);
 

Assets/VRM10/Runtime/Migration/MigrationVrmMeta.cs

@@ -27,7 +27,7 @@ namespace UniVRM10
     // },
     public static class MigrationVrmMeta
     {
-        public static UniGLTF.Extensions.VRMC_vrm.Meta Migrate(JsonNode vrm0)
+        public static UniGLTF.Extensions.VRMC_vrm.Meta Migrate(UniGLTF.glTF gltf, JsonNode vrm0)
         {
             var meta = new UniGLTF.Extensions.VRMC_vrm.Meta
             {
@@ -54,7 +54,21 @@ public static UniGLTF.Extensions.VRMC_vrm.Meta Migrate(JsonNode vrm0)
                     case "author": meta.Authors = new List<string>() { kv.Value.GetString() }; break;
                     case "contactInformation": meta.ContactInformation = kv.Value.GetString(); break;
                     case "reference": meta.References = new List<string>() { kv.Value.GetString() }; break;
-                    case "texture": meta.ThumbnailImage = kv.Value.GetInt32(); break;
+                    case "texture":
+                        {
+                            // vrm0x use texture. vrm10 use image
+                            var textureIndex = kv.Value.GetInt32();
+                            if (textureIndex == -1)
+                            {
+                                meta.ThumbnailImage = -1;
+                            }
+                            else
+                            {
+                                var gltfTexture = gltf.textures[textureIndex];
+                                meta.ThumbnailImage = gltfTexture.source;
+                            }
+                            break;
+                        }
 
                     case "allowedUserName":
                         {

Assets/VRM10/Tests/ExpressionTests.cs

@@ -1,4 +1,3 @@
-using System.IO;
 using System.Linq;
 using NUnit.Framework;
 using UnityEngine;
@@ -7,34 +6,10 @@ namespace UniVRM10.Test
 {
     public class ExpressionTests
     {
-        static string AliciaPath
-        {
-            get
-            {
-                return Path.GetFullPath(Application.dataPath + "/../Tests/Models/Alicia_vrm-0.51/AliciaSolid_vrm-0.51.vrm")
-                    .Replace("\\", "/");
-            }
-        }
-
-        static VRM10Controller Load()
-        {
-            Vrm10Data.TryParseOrMigrate(AliciaPath, true, out Vrm10Data vrm);
-            using (var loader = new Vrm10Importer(vrm))
-            {
-                var task = loader.LoadAsync(new VRMShaders.ImmediateCaller());
-                task.Wait();
-
-                var instance = task.Result;
-
-                return instance.GetComponent<VRM10Controller>();
-            }
-
-        }
-
         [Test]
         public void DuplicatedMaterialColorBindings()
         {
-            var controller = Load();
+            var controller = TestAsset.LoadAlicia();
 
             var src = controller.Vrm.Expression.Aa.MaterialColorBindings.ToList();
 
@@ -63,7 +38,7 @@ public void DuplicatedMaterialColorBindings()
         [Test]
         public void DuplicatedMaterialUVBindings()
         {
-            var controller = Load();
+            var controller = TestAsset.LoadAlicia();
 
             var renderers = controller.GetComponentsInChildren<Renderer>();
             var name = renderers[0].sharedMaterials[0].name;

Assets/VRM10/Tests/LoadTests.cs

@@ -0,0 +1,23 @@
+using NUnit.Framework;
+
+namespace UniVRM10.Test
+{
+    public class LoadTests
+    {
+        [Test]
+        public void EmptyThumbnailName()
+        {
+            Assert.True(Vrm10Data.TryParseOrMigrate(TestAsset.AliciaPath, true, out Vrm10Data vrm));
+
+            var index = vrm.VrmExtension.Meta.ThumbnailImage.Value;
+
+            // empty thumbnail name
+            vrm.Data.GLTF.images[index].name = null;
+
+            using (var loader = new Vrm10Importer(vrm))
+            {
+                loader.LoadAsync(new VRMShaders.ImmediateCaller()).Wait();
+            }
+        }
+    }
+}

Assets/VRM10/Tests/TestAsset.cs

@@ -0,0 +1,31 @@
+using System.IO;
+using UnityEngine;
+
+namespace UniVRM10
+{
+    public static class TestAsset
+    {
+        public static string AliciaPath
+        {
+            get
+            {
+                return Path.GetFullPath(Application.dataPath + "/../Tests/Models/Alicia_vrm-0.51/AliciaSolid_vrm-0.51.vrm")
+                    .Replace("\\", "/");
+            }
+        }
+
+        public static VRM10Controller LoadAlicia()
+        {
+            Vrm10Data.TryParseOrMigrate(AliciaPath, true, out Vrm10Data vrm);
+            using (var loader = new Vrm10Importer(vrm))
+            {
+                var task = loader.LoadAsync(new VRMShaders.ImmediateCaller());
+                task.Wait();
+
+                var instance = task.Result;
+
+                return instance.GetComponent<VRM10Controller>();
+            }
+        }
+    }
+}