public void Visit(PolyVoosAsset asset)
{
string assetName = asset.assetId;
string uri = asset.GetUri();
PolyApi.GetAsset(assetName, maybeAsset =>
{
if (MaybeLogError(assetName, maybeAsset))
{
cache.CreateCacheEntry(uri, GameObject.CreatePrimitive(PrimitiveType.Cube), null);
return;
}
PolyAsset polyAsset = maybeAsset.Value;
// We need both the asset and the thumbnail to consider it "downloaded".
// We'll download them in parallel, and whichever one finishes second
// will call SetCacheEntry.
GameObject assetObject = null;
Texture2D thumbnail = null;
PolyApi.FetchThumbnail(polyAsset, (_, maybeImported) =>
{
if (MaybeLogError(assetName, maybeImported))
{
return;
}
thumbnail = polyAsset.thumbnailTexture;
// If we finished first, don't SetCacheEntry yet.
if (assetObject != null)
{
// Ok, both resources are done. Report completion!
// Set the cache (and flush the wait list)
cache.CreateCacheEntry(uri, assetObject, thumbnail);
}
});
System.Action <GameObject> onAssetImported = importedGameObject =>
{
cache.downloadedPolyAssets.Add(polyAsset);
assetObject = importedGameObject;
assetObject.name = assetName;
PrepareImportedModel(assetObject, polyAsset.description);
// If we finished first, don't SetCacheEntry yet.
if (thumbnail != null)
{
// Ok, both resources are done. Report completion!
// Set the cache (and flush the wait list)
cache.CreateCacheEntry(uri, assetObject, thumbnail);
}
};
var objFormat = polyAsset.GetFormatIfExists(PolyFormatType.OBJ);
var fbx = polyAsset.GetFormatIfExists(PolyFormatType.FBX);
#if USE_TRILIB
// Blocks models, like the pug, have both GLTFs and FBX's. But, TRILIB
// doesn't seem to load Blocks FBX well, so don't do it. However, it's
// not trivial to detect Blocks models. So our current heuristic is
// going to simply be, only load the FBX if it has FBX but NOT OBJ. At
// least as of 20190325, actual FBX uploads don't have OBJs. In the
// future, we can even peek at the GLTF and see if it was generated by
// Blocks.
if (objFormat == null && fbx != null)
{
string tempDir = Util.CreateTempDirectory();
Dictionary <string, string> url2path = new Dictionary <string, string>();
foreach (var file in fbx.resources)
{
string localPath = System.IO.Path.Combine(tempDir, file.relativePath);
url2path[file.url] = localPath;
}
// The root
string rootPath = System.IO.Path.Combine(tempDir, fbx.root.relativePath);
url2path[fbx.root.url] = rootPath;
Util.DownloadFilesToDisk(url2path,
() =>
{
// All done!
using (var loader = new TriLib.AssetLoaderAsync())
{
TriLib.AssetLoaderOptions opts = GetTriLibOpts();
loader.LoadFromFileWithTextures(rootPath, opts, null,
obj =>
{
System.IO.Directory.Delete(tempDir, true);
onAssetImported(obj);
});
}
},
errors =>
{
System.IO.Directory.Delete(tempDir, true);
Debug.LogError($"Could not download Poly FBX for asset ID {assetName}. Errors: {string.Join("\n", errors)}");
return;
});
}
else
#endif
{
PolyApi.Import(polyAsset, cache.polyImportOptions, (_, maybeImported) =>
{
if (MaybeLogError(assetName, maybeImported))
{
return;
}
onAssetImported(maybeImported.Value.gameObject);
});
}
});
}
