private static GameObject ImportGLTF(string filepath, ImportSettings importSettings, out AnimationClip[] animations)
{
string json = File.ReadAllText(filepath);
// Parse json
GLTFObject gltfObject = JsonConvert.DeserializeObject <GLTFObject>(json);
return(gltfObject.LoadInternal(filepath, null, 0, importSettings, out animations));
}
private static GameObject ImportGLB(string filepath, ImportSettings importSettings, out AnimationClip[] animations)
{
FileStream stream = File.OpenRead(filepath);
long binChunkStart;
string json = GetGLBJson(stream, out binChunkStart);
GLTFObject gltfObject = JsonConvert.DeserializeObject <GLTFObject>(json);
return(gltfObject.LoadInternal(filepath, null, binChunkStart, importSettings, out animations));
}
private static GameObject ImportGLB(byte[] bytes, ImportSettings importSettings, out AnimationClip[] animations)
{
Stream stream = new MemoryStream(bytes);
long binChunkStart;
string json = GetGLBJson(stream, out binChunkStart);
GLTFObject gltfObject = JsonConvert.DeserializeObject <GLTFObject>(json);
return(gltfObject.LoadInternal(null, bytes, binChunkStart, importSettings, out animations));
}
public static void ExportGLB(GameObject root)
{
GLTFObject gltfObject = CreateGLTFObject(root.transform);
Debug.Log(JsonConvert.SerializeObject(gltfObject, new JsonSerializerSettings()
{
NullValueHandling = NullValueHandling.Ignore
}));
}
private static void ProcessExtrasInternal(GameObject gameObject, GLTFObject gltfObject, ImportSettings importSettings, AnimationClip[] animations)
{
if (gltfObject.extras == null)
{
gltfObject.extras = new JObject();
}
if (gltfObject.materials != null)
{
JArray materialExtras = new JArray();
bool hasMaterialExtraData = false;
foreach (GLTFMaterial material in gltfObject.materials)
{
if (material.extras != null)
{
materialExtras.Add(material.extras);
hasMaterialExtraData = true;
}
else
{
materialExtras.Add(new JObject());
}
}
if (hasMaterialExtraData)
{
gltfObject.extras.Add("material", materialExtras);
}
}
if (gltfObject.animations != null)
{
JArray animationExtras = new JArray();
bool hasAnimationExtraData = false;
foreach (GLTFAnimation animation in gltfObject.animations)
{
if (animation.extras != null)
{
hasAnimationExtraData = true;
animationExtras.Add(animation.extras);
}
else
{
animationExtras.Add(new JObject());
}
}
if (hasAnimationExtraData)
{
gltfObject.extras.Add("animation", animationExtras);
}
}
importSettings.extrasProcessor.ProcessExtras(gameObject, animations, gltfObject.extras);
}
private static GameObject LoadInternal(this GLTFObject gltfObject, string filepath, byte[] bytefile, long binChunkStart, ImportSettings importSettings, out AnimationClip[] animations)
{
CheckExtensions(gltfObject);
// directory root is sometimes used for loading buffers from containing file, or local images
string directoryRoot = filepath != null?Directory.GetParent(filepath).ToString() + "/" : null;
importSettings.shaderOverrides.CacheDefaultShaders();
// Import tasks synchronously
GLTFBuffer.ImportTask bufferTask = new GLTFBuffer.ImportTask(gltfObject.buffers, filepath, bytefile, binChunkStart);
bufferTask.RunSynchronously();
GLTFBufferView.ImportTask bufferViewTask = new GLTFBufferView.ImportTask(gltfObject.bufferViews, bufferTask);
bufferViewTask.RunSynchronously();
GLTFAccessor.ImportTask accessorTask = new GLTFAccessor.ImportTask(gltfObject.accessors, bufferViewTask);
accessorTask.RunSynchronously();
GLTFImage.ImportTask imageTask = new GLTFImage.ImportTask(gltfObject.images, directoryRoot, bufferViewTask);
imageTask.RunSynchronously();
GLTFTexture.ImportTask textureTask = new GLTFTexture.ImportTask(gltfObject.textures, imageTask);
textureTask.RunSynchronously();
GLTFMaterial.ImportTask materialTask = new GLTFMaterial.ImportTask(gltfObject.materials, textureTask, importSettings);
materialTask.RunSynchronously();
GLTFMesh.ImportTask meshTask = new GLTFMesh.ImportTask(gltfObject.meshes, accessorTask, bufferViewTask, materialTask, importSettings);
meshTask.RunSynchronously();
GLTFSkin.ImportTask skinTask = new GLTFSkin.ImportTask(gltfObject.skins, accessorTask);
skinTask.RunSynchronously();
GLTFNode.ImportTask nodeTask = new GLTFNode.ImportTask(gltfObject.nodes, meshTask, skinTask, gltfObject.cameras);
nodeTask.RunSynchronously();
GLTFAnimation.ImportResult[] animationResult = gltfObject.animations.Import(accessorTask.Result, nodeTask.Result, importSettings);
if (animationResult != null)
{
animations = animationResult.Select(x => x.clip).ToArray();
}
else
{
animations = new AnimationClip[0];
}
foreach (var item in bufferTask.Result)
{
item.Dispose();
}
GameObject gameObject = nodeTask.Result.GetRoot();
if (importSettings.extrasProcessor != null)
{
ProcessExtrasInternal(gameObject, gltfObject, importSettings, animations);
}
return(gameObject);
}
public static GLTFObject CreateGLTFObject(Transform root)
{
GLTFObject gltfObject = new GLTFObject();
GLTFAsset asset = new GLTFAsset()
{
generator = "GLTFUtility by Bitmoji https: //github.com/Bitmoji/GLTFUtility",
version = "2.0"
};
//List<GLTFAccessor.ExportResult> accessors
List <GLTFNode.ExportResult> nodes = GLTFNode.Export(root);
List <GLTFMesh.ExportResult> meshes = GLTFMesh.Export(nodes);
gltfObject.scene = 0;
gltfObject.asset = asset;
gltfObject.nodes = nodes.Cast <GLTFNode>().ToList();
gltfObject.meshes = meshes.Cast <GLTFMesh>().ToList();
return(gltfObject);
}
private static void CheckExtensions(GLTFObject gLTFObject)
{
if (gLTFObject.extensionsRequired != null)
{
for (int i = 0; i < gLTFObject.extensionsRequired.Count; i++)
{
switch (gLTFObject.extensionsRequired[i])
{
case "KHR_materials_pbrSpecularGlossiness":
break;
case "KHR_draco_mesh_compression":
break;
default:
Debug.LogWarning($"GLTFUtility: Required extension '{gLTFObject.extensionsRequired[i]}' not supported. Import process will proceed but results may vary.");
break;
}
}
}
}
private static IEnumerator LoadAsync(string json, string filepath, byte[] bytefile, long binChunkStart, ImportSettings importSettings, Action <GameObject, AnimationClip[]> onFinished, Action <float> onProgress = null)
{
// Threaded deserialization
Task <GLTFObject> deserializeTask = new Task <GLTFObject>(() => JsonConvert.DeserializeObject <GLTFObject>(json));
deserializeTask.Start();
while (!deserializeTask.IsCompleted)
{
yield return(null);
}
GLTFObject gltfObject = deserializeTask.Result;
CheckExtensions(gltfObject);
// directory root is sometimes used for loading buffers from containing file, or local images
string directoryRoot = filepath != null?Directory.GetParent(filepath).ToString() + "/" : null;
importSettings.shaderOverrides.CacheDefaultShaders();
// Setup import tasks
List <ImportTask> importTasks = new List <ImportTask>();
GLTFBuffer.ImportTask bufferTask = new GLTFBuffer.ImportTask(gltfObject.buffers, filepath, bytefile, binChunkStart);
importTasks.Add(bufferTask);
GLTFBufferView.ImportTask bufferViewTask = new GLTFBufferView.ImportTask(gltfObject.bufferViews, bufferTask);
importTasks.Add(bufferViewTask);
GLTFAccessor.ImportTask accessorTask = new GLTFAccessor.ImportTask(gltfObject.accessors, bufferViewTask);
importTasks.Add(accessorTask);
GLTFImage.ImportTask imageTask = new GLTFImage.ImportTask(gltfObject.images, directoryRoot, bufferViewTask);
importTasks.Add(imageTask);
GLTFTexture.ImportTask textureTask = new GLTFTexture.ImportTask(gltfObject.textures, imageTask);
importTasks.Add(textureTask);
GLTFMaterial.ImportTask materialTask = new GLTFMaterial.ImportTask(gltfObject.materials, textureTask, importSettings);
importTasks.Add(materialTask);
GLTFMesh.ImportTask meshTask = new GLTFMesh.ImportTask(gltfObject.meshes, accessorTask, bufferViewTask, materialTask, importSettings);
importTasks.Add(meshTask);
GLTFSkin.ImportTask skinTask = new GLTFSkin.ImportTask(gltfObject.skins, accessorTask);
importTasks.Add(skinTask);
GLTFNode.ImportTask nodeTask = new GLTFNode.ImportTask(gltfObject.nodes, meshTask, skinTask, gltfObject.cameras);
importTasks.Add(nodeTask);
// Ignite
for (int i = 0; i < importTasks.Count; i++)
{
TaskSupervisor(importTasks[i], onProgress).RunCoroutine();
}
// Wait for all tasks to finish
while (!importTasks.All(x => x.IsCompleted))
{
yield return(null);
}
// Fire onFinished when all tasks have completed
GameObject root = nodeTask.Result.GetRoot();
GLTFAnimation.ImportResult[] animationResult = gltfObject.animations.Import(accessorTask.Result, nodeTask.Result, importSettings);
AnimationClip[] animations = new AnimationClip[0];
if (animationResult != null)
{
animations = animationResult.Select(x => x.clip).ToArray();
}
if (importSettings.extrasProcessor != null)
{
ProcessExtrasInternal(root, gltfObject, importSettings, animations);
}
if (onFinished != null)
{
onFinished(nodeTask.Result.GetRoot(), animations);
}
// Close file streams
foreach (var item in bufferTask.Result)
{
item.Dispose();
}
}