protected override GameObject DoUnityThreadWork(IDisposable state__,
out IEnumerable <Null> meshEnumerable,
out ImportMaterialCollector
importMaterialCollector)
{
meshEnumerable = null;
importMaterialCollector = null;
GameObject rootObject = null;
using (IDisposable state_ = state__)
{
var state = state_ as ImportGltf.ImportState;
if (state != null)
{
string assetLocation = Path.GetDirectoryName(m_localPath);
// EndImport doesn't try to use the loadImages functionality of UriLoader anyway.
// It knows it's on the main thread, so chooses to use Unity's fast loading.
var loader = new TiltBrushUriLoader(m_localPath, assetLocation, loadImages: false);
ImportGltf.GltfImportResult result =
ImportGltf.EndImport(
state, loader,
new ImportMaterialCollector(assetLocation, uniqueSeed: m_localPath),
out meshEnumerable);
if (result != null)
{
rootObject = result.root;
importMaterialCollector = (ImportMaterialCollector)result.materialCollector;
}
}
}
IsValid = (rootObject != null);
return(rootObject);
}
public void Update()
{
// We process at most one import result per frame, to avoid doing too much work
// in the main thread.
ImportOperation operation;
lock (finishedOperationsLock)
{
if (finishedOperations.Count == 0)
{
return;
}
operation = finishedOperations.Dequeue();
}
if (!operation.status.ok)
{
// Import failed.
operation.callback(operation.status, root: null, meshCreator: null);
return;
}
try
{
IEnumerable meshCreator;
ImportGltf.GltfImportResult result = ImportGltf.EndImport(operation.importState,
operation.loader, out meshCreator);
if (!operation.options.clientThrottledMainThread)
{
// If we're not in throttled mode, create all the meshes immediately by exhausting
// the meshCreator enumeration. Otherwise, it's the caller's responsibility to
// do this.
foreach (var unused in meshCreator) /* empty */ } {
meshCreator = null;
}
// Success.
operation.callback(PolyStatus.Success(), result.root, meshCreator);
}
catch (Exception ex)
{
// Import failed.
Debug.LogException(ex);
operation.callback(PolyStatus.Error("Failed to convert import to Unity objects.", ex),
root: null, meshCreator: null);
}
}