public CacheEntry(Guid id, Guid containerId, AssetSource source, Object asset)
{
Id = id;
ContainerId = containerId;
Source = source;
Asset = asset;
}
public CacheEntry(Guid id, Guid containerId, AssetSource source, Object asset, ColliderGeometry collider = null)
{
Id = id;
ContainerId = containerId;
Source = source;
Asset = asset;
ColliderGeometry = collider;
}
public AssetMetadata(Guid id, Guid containerId, Object asset,
ColliderGeometry collider = null, AssetSource source = null)
{
Id = id;
ContainerId = containerId;
Source = source;
Asset = asset;
ColliderGeometry = collider;
}
/// <inheritdoc cref="GetAssetIdsInSource"/>
public IEnumerable<Guid> GetAssetIdsInSource(AssetSource source = null)
{
List<Guid> guids;
if (source != null)
{
assetsBySource.TryGetValue(source, out guids);
}
else
{
guids = manualAssets;
}
return guids;
}
/// <inheritdoc cref="CacheAsset"/>
public void CacheAsset(Object asset, Guid id, AssetSource source = null)
{
List<Guid> assetList;
if(source != null)
{
assetList = assetsBySource.GetOrCreate(source, () => new List<Guid>(ASSET_DEFAULT_COUNT));
}
else
{
assetList = manualAssets;
}
assetList.Add(id);
assets[id] = asset;
ids[asset] = id;
}
/// <inheritdoc cref="CacheAsset"/>
public void CacheAsset(Object asset, Guid id, Guid containerId, AssetSource source = null, ColliderGeometry colliderGeo = null)
{
if (!cache.Any(c => c.Id == id))
{
cache.Add(new CacheEntry(id, containerId, source, asset, colliderGeo));
}
if (cacheCallbacks.TryGetValue(id, out List <CacheCallback> callbacks))
{
cacheCallbacks.Remove(id);
foreach (var cb in callbacks)
{
try
{
cb?.Invoke(asset);
}
catch (Exception e)
{
Debug.LogException(e);
}
}
}
}
/// <summary>
/// Track a new asset reference. Will be called during asset creation, after the asset content is downloaded
/// or retrieved from cache.
/// </summary>
/// <param name="id"></param>
/// <param name="containerId"></param>
/// <param name="asset"></param>
/// <param name="colliderGeo"></param>
/// <param name="source"></param>
public void Set(Guid id, Guid containerId, Object asset,
ColliderGeometry colliderGeo = null, AssetSource source = null)
{
if (!Assets.ContainsKey(id))
{
Assets[id] = new AssetMetadata(id, containerId, asset, colliderGeo, source);
}
if (Callbacks.TryGetValue(id, out List <AssetCallback> callbacks))
{
Callbacks.Remove(id);
foreach (var cb in callbacks)
{
try
{
cb?.Invoke(Assets[id]);
}
catch (Exception e)
{
Debug.LogException(e);
}
}
}
}
internal async void OnCreateAsset(CreateAsset payload, Action onCompleteCallback)
{
var def = payload.Definition;
var response = new AssetsLoaded();
var unityAsset = _app.AssetManager.GetById(def.Id)?.Asset;
ColliderGeometry colliderGeo = null;
AssetSource source = null;
ActiveContainers.Add(payload.ContainerId);
// create materials
if (unityAsset == null && def.Material != null)
{
unityAsset = UnityEngine.Object.Instantiate(MREAPI.AppsAPI.DefaultMaterial);
}
// create textures
else if (unityAsset == null && def.Texture != null)
{
var texUri = new Uri(_app.ServerAssetUri, def.Texture.Value.Uri);
source = new AssetSource(AssetContainerType.None, texUri.AbsoluteUri);
var result = await AssetFetcher <UnityEngine.Texture> .LoadTask(_owner, texUri);
// this is a newly loaded texture, so we decide initial settings for the shared asset
if (result.ReturnCode == 200)
{
result.Asset.wrapModeU = def.Texture.Value.WrapModeU ?? TextureWrapMode.Repeat;
result.Asset.wrapModeV = def.Texture.Value.WrapModeV ?? TextureWrapMode.Repeat;
}
unityAsset = result.Asset;
source.Version = result.ETag;
if (result.FailureMessage != null)
{
response.FailureMessage = result.FailureMessage;
}
}
// create meshes
else if (unityAsset == null && def.Mesh != null)
{
if (def.Mesh.Value.PrimitiveDefinition != null)
{
var factory = MREAPI.AppsAPI.PrimitiveFactory;
try
{
unityAsset = factory.CreatePrimitive(def.Mesh.Value.PrimitiveDefinition.Value);
colliderGeo = ConvertPrimToCollider(def.Mesh.Value.PrimitiveDefinition.Value, def.Id);
}
catch (Exception e)
{
response.FailureMessage = e.Message;
MREAPI.Logger.LogError(response.FailureMessage);
}
}
else
{
response.FailureMessage = $"Cannot create mesh {def.Id} without a primitive definition";
}
}
// create sounds
else if (unityAsset == null && def.Sound != null)
{
var soundUri = new Uri(_app.ServerAssetUri, def.Sound.Value.Uri);
source = new AssetSource(AssetContainerType.None, soundUri.AbsoluteUri);
var result = await AssetFetcher <UnityEngine.AudioClip> .LoadTask(_owner, soundUri);
unityAsset = result.Asset;
source.Version = result.ETag;
if (result.FailureMessage != null)
{
response.FailureMessage = result.FailureMessage;
}
}
// create video streams
else if (unityAsset == null && def.VideoStream != null)
{
if (MREAPI.AppsAPI.VideoPlayerFactory != null)
{
string videoString;
// These youtube "URIs" are not valid URIs because they are case-sensitive. Don't parse, and
// deprecate this URL scheme as soon as feasible.
if (def.VideoStream.Value.Uri.StartsWith("youtube://"))
{
videoString = def.VideoStream.Value.Uri;
}
else
{
var videoUri = new Uri(_app.ServerAssetUri, def.VideoStream.Value.Uri);
videoString = videoUri.AbsoluteUri;
}
PluginInterfaces.FetchResult result2 = MREAPI.AppsAPI.VideoPlayerFactory.PreloadVideoAsset(videoString);
unityAsset = result2.Asset;
if (result2.FailureMessage != null)
{
response.FailureMessage = result2.FailureMessage;
}
}
else
{
response.FailureMessage = "VideoPlayerFactory not implemented";
}
}
// create animation data
else if (unityAsset == null && def.AnimationData != null)
{
var animDataCache = ScriptableObject.CreateInstance <AnimationDataCached>();
animDataCache.Tracks = def.AnimationData.Value.Tracks;
unityAsset = animDataCache;
}
_app.AssetManager.Set(def.Id, payload.ContainerId, unityAsset, colliderGeo, source);
// verify creation and apply initial patch
if (unityAsset != null)
{
unityAsset.name = def.Name;
OnAssetUpdate(new AssetUpdate()
{
Asset = def
}, null);
try
{
response.Assets = new Asset[] { GenerateAssetPatch(unityAsset, def.Id) };
}
catch (Exception e)
{
response.FailureMessage = e.Message;
_app.Logger.LogError(response.FailureMessage);
}
}
else
{
if (response.FailureMessage == null)
{
response.FailureMessage = $"Not implemented: CreateAsset of new asset type";
}
_app.Logger.LogError(response.FailureMessage);
}
_app.Protocol.Send(new Message()
{
ReplyToId = payload.MessageId,
Payload = response
});
onCompleteCallback?.Invoke();
}
private async Task <IList <Asset> > LoadAssetsFromGLTF(AssetSource source, Guid containerId, ColliderType colliderType)
{
WebRequestLoader loader = null;
Stream stream = null;
source.ParsedUri = new Uri(_app.ServerAssetUri, source.ParsedUri);
var rootUri = URIHelper.GetDirectoryName(source.ParsedUri.AbsoluteUri);
var cachedVersion = MREAPI.AppsAPI.AssetCache.SupportsSync ?
MREAPI.AppsAPI.AssetCache.GetVersionSync(source.ParsedUri) :
await MREAPI.AppsAPI.AssetCache.GetVersion(source.ParsedUri);
// Wait asynchronously until the load throttler lets us through.
using (var scope = await AssetLoadThrottling.AcquireLoadScope())
{
// set up loader
loader = new WebRequestLoader(rootUri);
if (!string.IsNullOrEmpty(cachedVersion))
{
loader.BeforeRequestCallback += (msg) =>
{
if (msg.RequestUri == source.ParsedUri)
{
msg.Headers.Add("If-None-Match", cachedVersion);
}
};
}
// download root gltf file, check for cache hit
try
{
stream = await loader.LoadStreamAsync(URIHelper.GetFileFromUri(source.ParsedUri));
source.Version = loader.LastResponse.Headers.ETag?.Tag ?? "";
}
catch (HttpRequestException)
{
if (loader.LastResponse.StatusCode == System.Net.HttpStatusCode.NotModified)
{
source.Version = cachedVersion;
}
else
{
throw;
}
}
}
IList <Asset> assetDefs = new List <Asset>(30);
DeterministicGuids guidGenerator = new DeterministicGuids(UtilMethods.StringToGuid(
$"{containerId}:{source.ParsedUri.AbsoluteUri}"));
IList <UnityEngine.Object> assets;
// fetch assets from glTF stream or cache
if (source.Version != cachedVersion)
{
assets = await LoadGltfFromStream(loader, stream, colliderType);
MREAPI.AppsAPI.AssetCache.StoreAssets(source.ParsedUri, assets, source.Version);
}
else
{
var assetsEnum = MREAPI.AppsAPI.AssetCache.SupportsSync ?
MREAPI.AppsAPI.AssetCache.LeaseAssetsSync(source.ParsedUri) :
await MREAPI.AppsAPI.AssetCache.LeaseAssets(source.ParsedUri);
assets = assetsEnum.ToList();
}
// catalog assets
int textureIndex = 0, meshIndex = 0, materialIndex = 0, prefabIndex = 0;
foreach (var asset in assets)
{
var assetDef = GenerateAssetPatch(asset, guidGenerator.Next());
assetDef.Name = asset.name;
string internalId = null;
if (asset is UnityEngine.Texture)
{
internalId = $"texture:{textureIndex++}";
}
else if (asset is UnityEngine.Mesh)
{
internalId = $"mesh:{meshIndex++}";
}
else if (asset is UnityEngine.Material)
{
internalId = $"material:{materialIndex++}";
}
else if (asset is GameObject)
{
internalId = $"scene:{prefabIndex++}";
}
assetDef.Source = new AssetSource(source.ContainerType, source.ParsedUri.AbsoluteUri, internalId, source.Version);
ColliderGeometry colliderGeo = null;
if (asset is UnityEngine.Mesh mesh)
{
colliderGeo = colliderType == ColliderType.Mesh ?
(ColliderGeometry) new MeshColliderGeometry()
{
MeshId = assetDef.Id
} :
(ColliderGeometry) new BoxColliderGeometry()
{
Size = (mesh.bounds.size * 0.8f).CreateMWVector3(),
Center = mesh.bounds.center.CreateMWVector3()
};
}
_app.AssetManager.Set(assetDef.Id, containerId, asset, colliderGeo, assetDef.Source);
assetDefs.Add(assetDef);
}
return(assetDefs);
}
private async Task <IList <Asset> > LoadAssetsFromGLTF(AssetSource source, Guid containerId, ColliderType colliderType)
{
IList <Asset> assets = new List <Asset>();
DeterministicGuids guidGenerator = new DeterministicGuids(UtilMethods.StringToGuid(
$"{containerId}:{source.ParsedUri.AbsoluteUri}"));
// download file
UtilMethods.GetUrlParts(source.ParsedUri.AbsoluteUri, out string rootUrl, out string filename);
var loader = new WebRequestLoader(rootUrl);
await loader.LoadStream(filename);
// pre-parse glTF document so we can get a scene count
// TODO: run this in thread
GLTF.GLTFParser.ParseJson(loader.LoadedStream, out GLTF.Schema.GLTFRoot gltfRoot);
GLTFSceneImporter importer =
MREAPI.AppsAPI.GLTFImporterFactory.CreateImporter(gltfRoot, loader, _asyncHelper, loader.LoadedStream);
importer.SceneParent = MREAPI.AppsAPI.AssetCache.CacheRootGO().transform;
importer.Collider = colliderType.ToGLTFColliderType();
// load prefabs
if (gltfRoot.Scenes != null)
{
for (var i = 0; i < gltfRoot.Scenes.Count; i++)
{
await importer.LoadSceneAsync(i);
GameObject rootObject = importer.LastLoadedScene;
rootObject.name = gltfRoot.Scenes[i].Name ?? $"scene:{i}";
MWGOTreeWalker.VisitTree(rootObject, (go) =>
{
go.layer = UnityConstants.ActorLayerIndex;
});
var def = GenerateAssetPatch(rootObject, guidGenerator.Next());
def.Name = rootObject.name;
def.Source = new AssetSource(source.ContainerType, source.Uri, $"scene:{i}");
MREAPI.AppsAPI.AssetCache.CacheAsset(rootObject, def.Id, containerId, source);
assets.Add(def);
}
}
// load textures
if (gltfRoot.Textures != null)
{
for (var i = 0; i < gltfRoot.Textures.Count; i++)
{
await importer.LoadTextureAsync(gltfRoot.Textures[i], i, true);
var texture = importer.GetTexture(i);
texture.name = gltfRoot.Textures[i].Name ?? $"texture:{i}";
var asset = GenerateAssetPatch(texture, guidGenerator.Next());
asset.Name = texture.name;
asset.Source = new AssetSource(source.ContainerType, source.Uri, $"texture:{i}");
MREAPI.AppsAPI.AssetCache.CacheAsset(texture, asset.Id, containerId, source);
assets.Add(asset);
}
}
// load materials
if (gltfRoot.Materials != null)
{
for (var i = 0; i < gltfRoot.Materials.Count; i++)
{
var matdef = gltfRoot.Materials[i];
var material = await importer.LoadMaterialAsync(i);
material.name = matdef.Name ?? $"material:{i}";
var asset = GenerateAssetPatch(material, guidGenerator.Next());
asset.Name = material.name;
asset.Source = new AssetSource(source.ContainerType, source.Uri, $"material:{i}");
MREAPI.AppsAPI.AssetCache.CacheAsset(material, asset.Id, containerId, source);
assets.Add(asset);
}
}
importer.Dispose();
return(assets);
}
private async Task <IList <Asset> > LoadAssetsFromGLTF(AssetSource source, Guid containerId, ColliderType colliderType)
{
IList <Asset> assets = new List <Asset>();
DeterministicGuids guidGenerator = new DeterministicGuids(UtilMethods.StringToGuid(
$"{containerId}:{source.ParsedUri.AbsoluteUri}"));
// download file
var rootUrl = URIHelper.GetDirectoryName(source.ParsedUri.AbsoluteUri);
var loader = new WebRequestLoader(rootUrl);
var stream = await loader.LoadStreamAsync(URIHelper.GetFileFromUri(source.ParsedUri));
// pre-parse glTF document so we can get a scene count
// TODO: run this in thread
GLTF.GLTFParser.ParseJson(stream, out GLTF.Schema.GLTFRoot gltfRoot);
stream.Position = 0;
GLTFSceneImporter importer =
MREAPI.AppsAPI.GLTFImporterFactory.CreateImporter(gltfRoot, loader, _asyncHelper, stream);
importer.SceneParent = MREAPI.AppsAPI.AssetCache.CacheRootGO().transform;
importer.Collider = colliderType.ToGLTFColliderType();
// load textures
if (gltfRoot.Textures != null)
{
for (var i = 0; i < gltfRoot.Textures.Count; i++)
{
await importer.LoadTextureAsync(gltfRoot.Textures[i], i, true);
var texture = importer.GetTexture(i);
texture.name = gltfRoot.Textures[i].Name ?? $"texture:{i}";
var asset = GenerateAssetPatch(texture, guidGenerator.Next());
asset.Name = texture.name;
asset.Source = new AssetSource(source.ContainerType, source.Uri, $"texture:{i}");
MREAPI.AppsAPI.AssetCache.CacheAsset(texture, asset.Id, containerId, source);
assets.Add(asset);
}
}
// load meshes
if (gltfRoot.Meshes != null)
{
var cancellationSource = new System.Threading.CancellationTokenSource();
for (var i = 0; i < gltfRoot.Meshes.Count; i++)
{
var mesh = await importer.LoadMeshAsync(i, cancellationSource.Token);
mesh.name = gltfRoot.Meshes[i].Name ?? $"mesh:{i}";
var asset = GenerateAssetPatch(mesh, guidGenerator.Next());
asset.Name = mesh.name;
asset.Source = new AssetSource(source.ContainerType, source.Uri, $"mesh:{i}");
var colliderGeo = colliderType == ColliderType.Mesh ?
(ColliderGeometry) new MeshColliderGeometry()
{
MeshId = asset.Id
} :
(ColliderGeometry) new BoxColliderGeometry()
{
Size = (mesh.bounds.size * 0.8f).CreateMWVector3()
};
MREAPI.AppsAPI.AssetCache.CacheAsset(mesh, asset.Id, containerId, source, colliderGeo);
assets.Add(asset);
}
}
// load materials
if (gltfRoot.Materials != null)
{
for (var i = 0; i < gltfRoot.Materials.Count; i++)
{
var matdef = gltfRoot.Materials[i];
var material = await importer.LoadMaterialAsync(i);
material.name = matdef.Name ?? $"material:{i}";
var asset = GenerateAssetPatch(material, guidGenerator.Next());
asset.Name = material.name;
asset.Source = new AssetSource(source.ContainerType, source.Uri, $"material:{i}");
MREAPI.AppsAPI.AssetCache.CacheAsset(material, asset.Id, containerId, source);
assets.Add(asset);
}
}
// load prefabs
if (gltfRoot.Scenes != null)
{
for (var i = 0; i < gltfRoot.Scenes.Count; i++)
{
await importer.LoadSceneAsync(i).ConfigureAwait(true);
GameObject rootObject = importer.LastLoadedScene;
rootObject.name = gltfRoot.Scenes[i].Name ?? $"scene:{i}";
var animation = rootObject.GetComponent <UnityEngine.Animation>();
if (animation != null)
{
animation.playAutomatically = false;
// initialize mapping so we know which gameobjects are targeted by which animation clips
var mapping = rootObject.AddComponent <PrefabAnimationTargets>();
mapping.Initialize(gltfRoot, i);
}
MWGOTreeWalker.VisitTree(rootObject, (go) =>
{
go.layer = MREAPI.AppsAPI.LayerApplicator.DefaultLayer;
});
var def = GenerateAssetPatch(rootObject, guidGenerator.Next());
def.Name = rootObject.name;
def.Source = new AssetSource(source.ContainerType, source.Uri, $"scene:{i}");
MREAPI.AppsAPI.AssetCache.CacheAsset(rootObject, def.Id, containerId, source);
assets.Add(def);
}
}
importer.Dispose();
return(assets);
}
