public static ImporterContext Parse(string path, Byte[] bytes)
{
var ext = Path.GetExtension(path).ToLower();
var context = new ImporterContext(UnityPath.FromFullpath(path));
switch (ext)
{
case ".gltf":
context.ParseJson(Encoding.UTF8.GetString(bytes), new FileSystemStorage(Path.GetDirectoryName(path)));
break;
case ".zip":
{
var zipArchive = Zip.ZipArchiveStorage.Parse(bytes);
var gltf = zipArchive.Entries.FirstOrDefault(x => x.FileName.ToLower().EndsWith(".gltf"));
if (gltf == null)
{
throw new Exception("no gltf in archive");
}
var jsonBytes = zipArchive.Extract(gltf);
var json = Encoding.UTF8.GetString(jsonBytes);
context.ParseJson(json, zipArchive);
}
break;
case ".glb":
context.ParseGlb(bytes);
break;
default:
throw new NotImplementedException();
}
return(context);
}
public async void Setup(SyncObject obj)
{
// TODO: dynamic model change handling
if (!obj.HasField("model") || !(obj.GetField("model") is BlobHandle))
{
// TODO:
obj.WriteErrorLog("Model", $"This object has no model field or not a blob handle. Ignoring.");
return;
}
BlobHandle handle = (BlobHandle)obj.GetField("model");
Blob blob = await obj.Node.ReadBlob(handle);
obj.WriteDebugLog("Model", $"Blob {handle} loaded");
// Because UniGLTF.ImporterContext is the parent class of VRMImporterContext,
// ( https://github.com/vrm-c/UniVRM/blob/3b68eb7f99bfe78ea9c83ea75511282ef1782f1a/Assets/VRM/UniVRM/Scripts/Format/VRMImporterContext.cs#L11 )
// loading procedure is probably almost same (See PlyayerAvatar.cs for VRM loading).
// https://github.com/vrm-c/UniVRM/blob/3b68eb7f99bfe78ea9c83ea75511282ef1782f1a/Assets/VRM/UniGLTF/Editor/Tests/UniGLTFTests.cs#L46
ctx = new UniGLTF.ImporterContext();
// ParseGlb parses GLB file.
// https://github.com/vrm-c/UniVRM/blob/3b68eb7f99bfe78ea9c83ea75511282ef1782f1a/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs#L239
// Currently, only GLB (glTF binary format) is supported because it is self-contained
ctx.ParseGlb(blob.Data);
ctx.Root = gameObject;
await ctx.LoadAsyncTask();
// UniGLTF also has ShowMeshes https://github.com/ousttrue/UniGLTF/wiki/Rutime-API#import
ctx.ShowMeshes();
obj.WriteDebugLog("Model", "Model load completed");
LoadComplete?.Invoke(this);
}
public static void Import(UnityPath gltfPath)
{
if (!gltfPath.IsUnderAssetsFolder)
{
throw new Exception();
}
ImporterContext context = new ImporterContext(gltfPath);
var ext = gltfPath.Extension.ToLower();
try
{
var prefabPath = gltfPath.Parent.Child(gltfPath.FileNameWithoutExtension + ".prefab");
if (ext == ".gltf")
{
context.ParseJson(File.ReadAllText(gltfPath.FullPath, System.Text.Encoding.UTF8),
new FileSystemStorage(gltfPath.Parent.FullPath));
gltfImporter.Load(context);
context.SaveAsAsset(prefabPath);
context.Destroy(false);
}
else if (ext == ".glb")
{
context.ParseGlb(File.ReadAllBytes(gltfPath.FullPath));
context.SaveTexturesAsPng(prefabPath);
EditorApplication.delayCall += () =>
{
// delay and can import png texture
gltfImporter.Load(context);
context.SaveAsAsset(prefabPath);
context.Destroy(false);
};
}
else
{
return;
}
}
catch (UniGLTFNotSupportedException ex)
{
Debug.LogWarningFormat("{0}: {1}",
gltfPath,
ex.Message
);
}
catch (Exception ex)
{
Debug.LogErrorFormat("import error: {0}", gltfPath);
Debug.LogErrorFormat("{0}", ex);
if (context != null)
{
context.Destroy(true);
}
}
}
GameObject Load(string path)
{
var bytes = File.ReadAllBytes(path);
Debug.LogFormat("[OnClick] {0}", path);
var context = new ImporterContext();
var ext = Path.GetExtension(path).ToLower();
switch (ext)
{
case ".gltf":
context.ParseJson(Encoding.UTF8.GetString(bytes), new FileSystemStorage(Path.GetDirectoryName(path)));
break;
case ".zip":
{
var zipArchive = Zip.ZipArchiveStorage.Parse(bytes);
var gltf = zipArchive.Entries.FirstOrDefault(x => x.FileName.ToLower().EndsWith(".gltf"));
if (gltf == null)
{
throw new Exception("no gltf in archive");
}
var jsonBytes = zipArchive.Extract(gltf);
var json = Encoding.UTF8.GetString(jsonBytes);
context.ParseJson(json, zipArchive);
}
break;
case ".glb":
context.ParseGlb(bytes);
break;
default:
throw new NotImplementedException();
}
context.Load();
context.Root.name = Path.GetFileNameWithoutExtension(path);
context.ShowMeshes();
return(context.Root);
}
public static void ImportMenu()
{
var path = UnityEditor.EditorUtility.OpenFilePanel("open gltf", "", "gltf,glb");
if (!string.IsNullOrEmpty(path))
{
Debug.Log(path);
var context = new ImporterContext
{
Path = path,
};
var bytes = File.ReadAllBytes(path);
var ext = Path.GetExtension(path).ToLower();
switch (ext)
{
case ".gltf":
{
context.ParseJson <glTF>(Encoding.UTF8.GetString(bytes), new FileSystemStorage(Path.GetDirectoryName(path)));
gltfImporter.Import <glTF>(context);
context.Root.name = Path.GetFileNameWithoutExtension(path);
context.ShowMeshes();
Selection.activeGameObject = context.Root;
}
break;
case ".glb":
{
context.ParseGlb <glTF>(bytes);
gltfImporter.Import <glTF>(context);
context.Root.name = Path.GetFileNameWithoutExtension(path);
context.ShowMeshes();
Selection.activeGameObject = context.Root;
}
break;
default:
Debug.LogWarningFormat("unknown ext: {0}", path);
break;
}
}
}
static void OnPostprocessAllAssets(string[] importedAssets,
string[] deletedAssets,
string[] movedAssets,
string[] movedFromAssetPaths)
{
foreach (string path in importedAssets)
{
ImporterContext context = new ImporterContext
{
Path = path,
};
var ext = Path.GetExtension(path).ToLower();
try
{
if (ext == ".gltf")
{
context.ParseJson <glTF>(File.ReadAllText(context.Path, System.Text.Encoding.UTF8),
new FileSystemStorage(Path.GetDirectoryName(path)));
gltfImporter.Import <glTF>(context);
context.SaveAsAsset();
context.Destroy(false);
}
else if (ext == ".glb")
{
context.ParseGlb <glTF>(File.ReadAllBytes(context.Path));
//
// https://answers.unity.com/questions/647615/how-to-update-import-settings-for-newly-created-as.html
//
for (int i = 0; i < context.GLTF.textures.Count; ++i)
{
var x = context.GLTF.textures[i];
var image = context.GLTF.images[x.source];
if (string.IsNullOrEmpty(image.uri))
{
// glb buffer
var folder = context.GetAssetFolder(".Textures").AssetPathToFullPath();
if (!Directory.Exists(folder))
{
UnityEditor.AssetDatabase.CreateFolder(context.GLTF.baseDir, Path.GetFileNameWithoutExtension(context.Path) + ".Textures");
//Directory.CreateDirectory(folder);
}
// name & bytes
var textureName = !string.IsNullOrEmpty(image.name) ? image.name : string.Format("{0:00}#GLB", i);
var byteSegment = context.GLTF.GetViewBytes(image.bufferView);
// path
var png = Path.Combine(folder, textureName + ".png");
File.WriteAllBytes(png, byteSegment.ToArray());
var assetPath = png.ToUnityRelativePath();
//Debug.LogFormat("import asset {0}", assetPath);
UnityEditor.AssetDatabase.ImportAsset(assetPath);
image.uri = assetPath.Substring(context.GLTF.baseDir.Length + 1);
}
}
UnityEditor.AssetDatabase.Refresh();
EditorApplication.delayCall += () =>
{
// delay and can import png texture
gltfImporter.Import <glTF>(context);
context.SaveAsAsset();
context.Destroy(false);
};
}
else
{
continue;
}
}
catch (UniGLTFNotSupportedException ex)
{
Debug.LogWarningFormat("{0}: {1}",
path,
ex.Message
);
}
catch (Exception ex)
{
Debug.LogErrorFormat("import error: {0}", path);
Debug.LogErrorFormat("{0}", ex);
if (context != null)
{
context.Destroy(true);
}
}
}
}