private void LoadFile(int sceneIndex = -1)
{
_glTFData = File.ReadAllBytes(_glTFPath);
_root = GLTFParser.ParseJson(_glTFData);
}
// todo undo
#if !WINDOWS_UWP
IEnumerator Start()
{
var fullPath0 = Application.streamingAssetsPath + Path.DirectorySeparatorChar + asset0Path;
ILoader loader0 = new FileLoader(URIHelper.GetDirectoryName(fullPath0));
var fullPath1 = Application.streamingAssetsPath + Path.DirectorySeparatorChar + asset1Path;
ILoader loader1 = new FileLoader(URIHelper.GetDirectoryName(fullPath1));
yield return(loader0.LoadStream(Path.GetFileName(asset0Path)));
var asset0Stream = loader0.LoadedStream;
GLTFRoot asset0Root = null;
GLTFParser.ParseJson(asset0Stream, ref asset0Root);
yield return(loader1.LoadStream(Path.GetFileName(asset1Path)));
var asset1Stream = loader1.LoadedStream;
GLTFRoot asset1Root = null;
GLTFParser.ParseJson(asset0Stream, ref asset1Root);
string newPath = "../../" + URIHelper.GetDirectoryName(asset0Path);
int previousBufferCount = asset1Root.Buffers.Count;
int previousImageCount = asset1Root.Images.Count;
int previousSceneCounter = asset1Root.Scenes.Count;
GLTFHelpers.MergeGLTF(asset1Root, asset0Root);
for (int i = previousBufferCount; i < asset1Root.Buffers.Count; ++i)
{
GLTF.Schema.GLTFBuffer buffer = asset1Root.Buffers[i];
if (!URIHelper.IsBase64Uri(buffer.Uri))
{
buffer.Uri = newPath + buffer.Uri;
}
}
for (int i = previousImageCount; i < asset1Root.Images.Count; ++i)
{
GLTFImage image = asset1Root.Images[i];
if (!URIHelper.IsBase64Uri(image.Uri))
{
image.Uri = newPath + image.Uri;
}
}
foreach (NodeId node in asset1Root.Scenes[asset0Root.Scene.Id + previousSceneCounter].Nodes)
{
node.Value.Translation.X += 5f;
asset1Root.Scene.Value.Nodes.Add(node);
}
GLTFSceneImporter importer = new GLTFSceneImporter(
asset1Root,
loader1
);
importer.MaximumLod = MaximumLod;
importer.isMultithreaded = Multithreaded;
yield return(importer.LoadScene(-1));
}
/// <summary>
/// Creates a scene based off loaded JSON. Includes loading in binary and image data to construct the meshes required.
/// </summary>
/// <param name="sceneIndex">The index of scene in gltf file to load</param>
/// <param name="isMultithreaded">Whether to use a thread to do loading</param>
/// <returns></returns>
protected IEnumerator ImportScene(int sceneIndex = -1, bool isMultithreaded = false)
{
Scene scene;
if (sceneIndex >= 0 && sceneIndex < _root.Scenes.Count)
{
scene = _root.Scenes[sceneIndex];
}
else
{
scene = _root.GetDefaultScene();
}
if (scene == null)
{
throw new Exception("No default scene in gltf file.");
}
_assetCache = new AssetCache(
_root.Images != null ? _root.Images.Count : 0,
_root.Textures != null ? _root.Textures.Count : 0,
_root.Materials != null ? _root.Materials.Count : 0,
_root.Buffers != null ? _root.Buffers.Count : 0,
_root.Meshes != null ? _root.Meshes.Count : 0
);
if (_lastLoadedScene == null)
{
if (_root.Buffers != null)
{
// todo add fuzzing to verify that buffers are before uri
for (int i = 0; i < _root.Buffers.Count; ++i)
{
GLTF.Schema.Buffer buffer = _root.Buffers[i];
if (buffer.Uri != null)
{
yield return(LoadBuffer(_gltfDirectoryPath, buffer, i));
}
else //null buffer uri indicates GLB buffer loading
{
GLTFParser.SeekToBinaryChunk(_gltfStream.Stream, i, _gltfStream.StartPosition);
_assetCache.BufferCache[i] = new BufferCacheData()
{
ChunkOffset = _gltfStream.Stream.Position,
Stream = _gltfStream.Stream
};
}
}
}
if (_root.Images != null)
{
for (int i = 0; i < _root.Images.Count; ++i)
{
Image image = _root.Images[i];
yield return(LoadImage(_gltfDirectoryPath, image, i));
}
}
#if !WINDOWS_UWP
// generate these in advance instead of as-needed
if (isMultithreaded)
{
yield return(_asyncAction.RunOnWorkerThread(() => BuildAttributesForMeshes()));
}
#endif
}
var sceneObj = CreateScene(scene);
if (_sceneParent != null)
{
sceneObj.transform.SetParent(_sceneParent, false);
}
_lastLoadedScene = sceneObj;
}
/// <summary>
/// Creates a scene based off loaded JSON. Includes loading in binary and image data to construct the meshes required.
/// </summary>
/// <param name="sceneIndex">The index of scene in gltf file to load</param>
/// <param name="isMultithreaded">Whether to use a thread to do loading</param>
/// <returns></returns>
protected IEnumerator ImportScene(int sceneIndex = -1, bool isMultithreaded = false)
{
GLTF.Schema.Scene scene;
if (sceneIndex >= 0 && sceneIndex < _root.Scenes.Count)
{
scene = _root.Scenes[sceneIndex];
}
else
{
scene = _root.GetDefaultScene();
}
if (scene == null)
{
throw new Exception("No default scene in gltf file.");
}
_assetCache = new AssetCache(
_root.Images != null ? _root.Images.Count : 0,
_root.Textures != null ? _root.Textures.Count : 0,
_root.Materials != null ? _root.Materials.Count : 0,
_root.Buffers != null ? _root.Buffers.Count : 0,
_root.Meshes != null ? _root.Meshes.Count : 0
);
if (_lastLoadedScene == null)
{
if (_root.Buffers != null)
{
// todo add fuzzing to verify that buffers are before uri
for (int i = 0; i < _root.Buffers.Count; ++i)
{
GLTF.Schema.Buffer buffer = _root.Buffers[i];
if (buffer.Uri != null)
{
yield return(LoadBuffer(_gltfDirectoryPath, buffer, i));
}
else //null buffer uri indicates GLB buffer loading
{
byte[] glbBuffer;
GLTFParser.ExtractBinaryChunk(_gltfData, i, out glbBuffer);
_assetCache.BufferCache[i] = glbBuffer;
}
}
}
if (_root.Images != null)
{
for (int i = 0; i < _root.Images.Count; ++i)
{
GLTF.Schema.Image image = _root.Images[i];
yield return(LoadImage(_gltfDirectoryPath, image, i));
}
}
#if !WINDOWS_UWP
// generate these in advance instead of as-needed
if (isMultithreaded)
{
yield return(_asyncAction.RunOnWorkerThread(() => BuildAttributesForMeshes()));
}
#endif
}
var sceneObj = CreateScene(scene);
if (_sceneParent != null)
{
sceneObj.transform.SetParent(_sceneParent, false);
}
// Experiment with fitting the scene into a prescribed size by accumulating
// all of the scenes nodes bounding boxes and then scaling the root node
// (I think this would be better as a mode to scale vertices but not for now..)
var allRenderersInScene = sceneObj.GetComponentsInChildren <Renderer>(false);
Bounds?box = null;
foreach (var renderer in allRenderersInScene)
{
//CreateBox(sceneObj.transform, renderer.bounds);
if (!box.HasValue)
{
box = new Bounds(renderer.bounds.center, renderer.bounds.size);
}
else
{
var val = box.Value;
val.Encapsulate(renderer.bounds);
box = val;
}
}
//CreateBox(sceneObj.transform, box);
// Now, for each individual mesh we can move the pivot to the bottom/centre
// w.r.t the vertices. This way we can easily place models on a flat surface
var allMeshesInScene = sceneObj.GetComponentsInChildren <MeshFilter>(false);
foreach (var renderer in allMeshesInScene)
{
var bbox = renderer.mesh.bounds;
// Calculate the distances we need to shift all of the vertices in
// each direction to get them centred in x and z and have them sitting
// at zero in the y-axis
float adjustY = bbox.center.y;
float adjustx = bbox.center.x;
float adjustZ = bbox.center.z;
//var verts = renderer.mesh.vertices;
//for (int i = 0; i < verts.Length; i++)
//{
// verts[i].x = verts[i].x - adjustx;
// verts[i].y = verts[i].y - adjustY;
// verts[i].z = verts[i].z - adjustZ;
//}
//renderer.mesh.vertices = verts;
}
Vector3 targetSize = Vector3.one / 4.0f;
Vector3 sceneBoundsSize = box.Value.max - box.Value.min;
float ratioX = targetSize.x / sceneBoundsSize.x;
float ratioY = targetSize.y / sceneBoundsSize.y;
float ratioZ = targetSize.z / sceneBoundsSize.z;
float biggest = Math.Min(ratioZ, Math.Min(ratioX, ratioY));
//sceneObj.transform.localScale = sceneObj.transform.localScale *
// (componentMax(targetSize) / componentMax(sceneBoundsSize));
//float f = componentMax(div(targetSize, sceneBoundsSize));
sceneObj.transform.localScale = sceneObj.transform.localScale * biggest;
_lastLoadedScene = sceneObj;
}
// todo undo
#if !WINDOWS_UWP
private async Task Start()
{
var fullPath0 = Application.streamingAssetsPath + Path.DirectorySeparatorChar + asset0Path;
ILoader loader0 = new FileLoader(URIHelper.GetDirectoryName(fullPath0));
var fullPath1 = Application.streamingAssetsPath + Path.DirectorySeparatorChar + asset1Path;
ILoader loader1 = new FileLoader(URIHelper.GetDirectoryName(fullPath1));
await loader0.LoadStream(Path.GetFileName(asset0Path));
var asset0Stream = loader0.LoadedStream;
GLTFRoot asset0Root;
GLTFParser.ParseJson(asset0Stream, out asset0Root);
await loader1.LoadStream(Path.GetFileName(asset1Path));
var asset1Stream = loader1.LoadedStream;
GLTFRoot asset1Root;
GLTFParser.ParseJson(asset1Stream, out asset1Root);
string newPath = "../../" + URIHelper.GetDirectoryName(asset0Path);
int previousBufferCount = asset1Root.Buffers.Count;
int previousImageCount = asset1Root.Images.Count;
int previousSceneCounter = asset1Root.Scenes.Count;
GLTFHelpers.MergeGLTF(asset1Root, asset0Root);
for (int i = previousBufferCount; i < asset1Root.Buffers.Count; ++i)
{
GLTF.Schema.GLTFBuffer buffer = asset1Root.Buffers[i];
if (!URIHelper.IsBase64Uri(buffer.Uri))
{
buffer.Uri = newPath + buffer.Uri;
}
}
for (int i = previousImageCount; i < asset1Root.Images.Count; ++i)
{
GLTFImage image = asset1Root.Images[i];
if (!URIHelper.IsBase64Uri(image.Uri))
{
image.Uri = newPath + image.Uri;
}
}
foreach (NodeId node in asset1Root.Scenes[asset0Root.Scene.Id + previousSceneCounter].Nodes)
{
node.Value.Translation.X += 5f;
asset1Root.Scene.Value.Nodes.Add(node);
}
GLTFSceneImporter importer = new GLTFSceneImporter(
asset1Root,
null,
new ImportOptions
{
ExternalDataLoader = loader1,
AsyncCoroutineHelper = gameObject.AddComponent <AsyncCoroutineHelper>()
});
importer.MaximumLod = MaximumLod;
importer.IsMultithreaded = Multithreaded;
await importer.LoadSceneAsync(-1);
}