/// <summary>
///
/// * Texture(.png etc...)をディスクに書き出す
/// * EditorApplication.delayCall で処理を進めて 書き出した画像が Asset として成立するのを待つ
/// * 書き出した Asset から TextureImporter を取得して設定する
///
/// </summary>
/// <param name="importer"></param>
/// <param name="dirName"></param>
/// <param name="onCompleted"></param>
public static void ExtractTextures(GltfData data, UnityPath textureDirectory,
ITextureDescriptorGenerator textureDescriptorGenerator, IReadOnlyDictionary <SubAssetKey, Texture> subAssets,
Action <SubAssetKey, Texture2D> addRemap,
Action <IEnumerable <UnityPath> > onCompleted = null)
{
var extractor = new TextureExtractor(data, textureDirectory, subAssets);
foreach (var param in textureDescriptorGenerator.Get().GetEnumerable())
{
extractor.Extract(param.SubAssetKey, param);
}
EditorApplication.delayCall += () =>
{
// Wait for the texture assets to be imported
foreach (var(key, targetPath) in extractor.Textures)
{
// remap
var externalObject = targetPath.LoadAsset <Texture2D>();
#if VRM_DEVELOP
// Debug.Log($"remap: {targetPath} => {externalObject}");
#endif
if (externalObject != null)
{
addRemap(key, externalObject);
}
}
if (onCompleted != null)
{
onCompleted(extractor.Textures.Values);
}
};
}
void ExtractMaterialsAndTextures(ScriptedImporter self, GltfData data, ITextureDescriptorGenerator textureDescriptorGenerator, Func <string, string> textureDir, Func <string, string> materialDir)
{
if (string.IsNullOrEmpty(self.assetPath))
{
return;
}
Action <SubAssetKey, Texture2D> addRemap = (key, externalObject) =>
{
self.AddRemap(new AssetImporter.SourceAssetIdentifier(key.Type, key.Name), externalObject);
};
Action <IEnumerable <UnityPath> > onCompleted = _ =>
{
// texture extract 後に importer 発動
AssetDatabase.ImportAsset(self.assetPath, ImportAssetOptions.ForceUpdate);
ExtractMaterials(self, materialDir);
};
// subAsset を ExternalObject として投入する
var subAssets = AssetDatabase.LoadAllAssetsAtPath(self.assetPath)
.Select(x => x as Texture)
.Where(x => x != null)
.Select(x => (new SubAssetKey(x), x))
.ToDictionary(kv => kv.Item1, kv => kv.Item2)
;
var assetPath = UnityPath.FromUnityPath(self.assetPath);
var dirName = textureDir(assetPath.Value); // $"{assetPath.FileNameWithoutExtension}.Textures";
TextureExtractor.ExtractTextures(
data,
assetPath.Parent.Child(dirName),
textureDescriptorGenerator,
subAssets,
addRemap,
onCompleted
);
}
public void OnGUI(ScriptedImporter importer, GltfData data,
ITextureDescriptorGenerator textureDescriptorGenerator,
Func <string, string> textureDir,
Func <string, string> materialDir)
{
if (CanExtract(importer))
{
if (GUILayout.Button("Extract Materials And Textures ..."))
{
ExtractMaterialsAndTextures(importer, data, textureDescriptorGenerator, textureDir, materialDir);
}
EditorGUILayout.HelpBox("Extract subasset to external object and overwrite remap", MessageType.Info);
}
else
{
if (GUILayout.Button("Clear extraction"))
{
ClearExternalObjects(importer, typeof(Texture), typeof(Material));
}
EditorGUILayout.HelpBox("Clear remap. All remap use subAsset", MessageType.Info);
}
//
// Draw ExternalObjectMap
//
s_foldMaterials = EditorGUILayout.Foldout(s_foldMaterials, "Remapped Materials");
if (s_foldMaterials)
{
DrawRemapGUI <UnityEngine.Material>(importer.GetExternalObjectMap());
}
s_foldTextures = EditorGUILayout.Foldout(s_foldTextures, "Remapped Textures");
if (s_foldTextures)
{
DrawRemapGUI <UnityEngine.Texture>(importer.GetExternalObjectMap());
}
}