Second preview build for iOS 9 On Demand Resources and App Slicing support

Does it not remove the 32-bit / 64-bit Unity code so that only the device architecture is supported? If not, is it planned?

 

I thought the app needed to built in a format that allowed the App Store the capability to do that?

 

I got the TV kit But this all looks terrifying! lol (Ill figure it out)

 

Step one of testing for ODR is confusing: "Make the build for scene."

Assuming this means build the project with only the SceneLoader scene included in the build?

Also when building the asset bundles the following error is given: "m_ManagersToReset.empty()" Is this a problem?

I also don't understand from the instructions where the asset bundles are supposed to go. I see that they are exported to a folder named AssetBundles next to my Unity Assets folder. But how is Xcode supposed to know where these are? Do the AssetBundles need to be hosted somewhere?

Anyhow, this isn't working for me with either SceneLoader or AssetLoader scene.

I get the following errors in Xcode when I run the project on my iPhone.

Also, assuming we get past this issue, what is the process to first test this during development, and then host the bundles on iTunes connect for distribution?

 

Also attempting to view the Resource Tags tab section in Xcode crashes Xcode. (tried both Xcode 7.0 and 7.1 beta)

 

I'm running into the exact same issues that dustinbahr is reporting. Using build 5.1.4b13.

 

After fooling around with this for far too long I realized the VariantLoader scene DOES work.

I don't want to use variants OR app slicing so i wasn't trying this before.

It seems the missing link may be this line of code, and the method that goes with it.

Code (CSharp):

1. #ifENABLE_IOS_APP_SLICING
2. AssetBundleManager.overrideBaseDownloadingURL+=OverrideAppSlicingDownloadingURL;
3. #endif

If I add that to the AssetLoader demo script I no longer get those errors.

I added this to my actual project and things are loading in as expected.

Can someone from Unity tell us if this is really the fix, and why it is needed?

 

Still getting this error when building asset bundles in the updated demo.

Should I be concerned?

 

Just tested the AssetLoader scene on device. It works great.

Also to clarify, it seems the overrideBaseDownloadingURL bandaid was not the real issue, and is not used in this updated demo.

Other than the seemingly harmless error mentioned above when building the asset bundles, this seems to work great!

 

Can you please tell what are these flags?
Should we set them manually? Or they setted by default?

 

Thank you)

 

Hi

After uploading app to the iTunesConnect in build details page i see:

On Demand Resources
Yes 0 Asset Packs
https://monosnap.com/file/2l5PKhHS95VatUJlmtOfbg9KLqZl1G

But after looking inside the ipa file i see that there are 2 folders inside ODR:
https://monosnap.com/file/TH3BoGquFP8EWJXutjrZFm7dO3QBF0

Is something special required for uploading ODR? Thank you.

 

Found the answer. If any build check at iTunes side is failed - ODR resoureces are not proceed. So, e.g. if you are uploading build for tvOS over 200MB, it will be blocked by iTunes Connect before ODR will be checked, so you'll always see:
On Demand Resources
Yes 0 Asset Packs

 

Any chance this gets bckported to 4.x?

 

With On Demand Resources, can I be running the game while some of the data for the next level is loading? I see the information for the Coroutine here, but its not clear if that means I can start streaming in resources while the player is doing other stuff in the game.

 

Yes, this should be possible.

 

Hey,

when i tried to run demo SceneLoader on device, i'm getting (i have build Asset Bundles):

[AssetBundleManager] Loading Asset Bundle Manifest: iOS

<Start>c__Iterator3:MoveNext()


(Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)


[AssetBundleManager] Requesting bundle iOS through ODR

<Initialize>c__Iterator4:MoveNext()

<Start>c__Iterator3:MoveNext()


(Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)


Failed downloading bundle iOS from odr://iOS: The requested application data doesn’t exist.


(Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)


[AssetBundleManager] Loading TestScene from scene-bundle bundle


(Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)


[AssetBundleManager] Loading Asset Bundle : scene-bundle

<Start>c__Iterator3:MoveNext()


(Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)


Please initialize AssetBundleManifest by calling AssetBundleManager.Initialize()


(Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)

and when I try view the Resource Tags tab in Xcode, Xcode crashes tried Xcode 7.1 and 7.1.2

Thanks, for any help

 

Hi there

I am trying to move some movies from StreamingAssets into ODR.

Packing them seems straightforward enough:

• Move out of /Assets/StreamingAssets
• new UnityEditor.iOS.Resource(<resourceName>, <path to file>).AddOnDemandResourceTags(<tag>)

This pops the files into the UnityData.xcassets in Xcode, and all appears good.

Run-time also almost works, having duplicated most of the classes in AssetBundleLoadOperation.cs, to not auto-create AssetBundles upon completion.

The question is: "How to I get the on-disk path to the downloaded file"? It seems that your "res://" prefix is not something Mono understands in System.IO.

I note that OnDemandResourcesRequest.GetResourcePath exists, but I can't get it to return anything other than null. After (request.IsDone && (request.error == null)), I tried passing:

• <resourceName>
• "res://" + <resourceName>
• "UnityData.xcassets/" + <resourceName>

Is this doable?

Cheers


Andy

 

Thanks, i got it working

I have one more question, is there any quick and easy way to add progress to LoadLevelAsync?

 

I have a question: test project size about 14 mb, but in TestFlight app size 100 mb (i not added anything). Why size increased

 

Hello,
I have a few issues with ODR

First what i have:
1) I get project as is, nothing changed, from https://bitbucket.org/Unity-Technologies/assetbundledemo
2) Unity 5.3.2f1
4) xCode 7.2
5) I build VariantsLoader scene to test app Slicing - this work's fine when build in debug from xCode directly on device

What issues i have:
1) attempting to view the Resource Tags tab section in Xcode crashes Xcode.

2) Make archive, and try to export it to test slicing shows me error:

Code (CSharp):

1. An error occurred during export
2. Expected asset pack at /OnDemandResources/com.xxxx.yyyy.variants

So i can't upload it to store and can't export it too.

3) I need to play video .m4v on ios device from StreamingAssets folder. I have a lot of video files in StreamingAssets folder, so i want to use them with ODR.
Is there any solution? It seems the problem with getting path to video file from AssetBundle.

AndyTehBald had the same issue

 

Just found out that the Utility.cs makes use of the UNITY_5_3_1 compiler directive. This needs to be adjusted since we're on UNITY_5_3_2 now. Isn't there a "newer than" or "older than" version directive?

 

Hi,

I have a question regarder ORD - when using a specific tag it's possible to have AssetBundle automatically downloaded according to Apple :

Initial install tags. The resources are downloaded at the same time as the app. The size of the resources is included in the total size for the app in the App Store. The tags can be purged when they are not being accessed by at least one NSBundleResourceRequest object.

So if I create AssetBundle - add tag to them - then set those tag as Initial install tag into Xcode - Do I need to use :

Code (CSharp):

1. var request = OnDemandResources.PreloadAsync(new string[] { odrTag } );

What I do not understand - if they are automatically downloaded - how to access to those AssetBundles ?

If those AssetBundles contain a prefab for instance - but they are not use in the first scene of my game - how to "save" the prefab when the AssetBundles is downloaded at the same time as the application and then be able to access to those prefab later in my game (in other scenes) ?

Sorry if those questions sound stupid - but I never had to work with AssetBundle before and use those for the first time in an AppleTV game seems complicated to me.

Thanks you

 

Im playing around with ODR, and can't figere out one issue.
How to check if the ODR Asset already downloaded and it's exist in cache?

I will explain in example.
1) I have LEVEL1 as ODR
2) I'm requesting LEVEL1 and start game after LEVEL1 loaded.
3) Here is few situations:
- a) User have internet connection - successful download LEVEL1 and start game.
- b) User DON'T have internet connection and step (a) was done earlier, so the ODR somewhere in OnDeamandResource folder, in cache - also success.
- c) User DON'T have internet connection and LEVEL1 wasn't loaded earlier, we don't have it in cache. In this case these code:

Code (CSharp):

1. // Coroutine that can be asynchronously executed with
2. StartCoroutine(LoadAsset("asset.data"));
3. public static IEnumerator LoadAsset(string resourceName)
4. {
5. // Create the request
6. var request = OnDemandResources.PreloadAsync(new string[] { "resource_tag"
7. });
8. // Wait until request is completed
9. yield return request;
10. // Check for errors
11. if (request.error != null)
12.   throw new Exception("ODR request failed: " + request.error);
13. // Get path to the resource and use it. Note that at the moment the only API
14. // that can load ODR or sliced resources is AssetBundle.CreateFromFile()
15. var path = "res://" + resourceName;
16. var bundle = AssetBundle.CreateFromFile(path);
17. // Call Dispose() when resource is no longer needed. This will release a pin on ODR resource.
18. request.Dispose();
19. }
20.  

doesn't give me any result. Coroutine is just waiting... For how long should it wait i don't know. In best way i should check if there is and internet connection and only than start Coroutine for asset loading.

As for me the best way for ODR asset loading is:
1) Check if ODR asset already loaded. It should be in cache and i can use it.
2) If not, check for internet connection.
3) If no connection do nothing(Notify user), If user has internet connection ask for ODR Asset Loading

So my main question is how to check if the ODR Asset already downloaded?

 

Additionally in ios native code there is a function that check resource:

https://developer.apple.com/library...yBeginAccessingResourcesWithCompletionHandler:

Code (CSharp):

1. - (void)conditionallyBeginAccessingResourcesWithCompletionHandler:(void (^)(BOOL resourcesAvailable))completionHandler

A block called when the availability of the resources has been checked.

If the resources marked with the tags managed by the request are already on the device, you can start accessing them as soon as the completion handler is called with resourcesAvailable set to YES. If all of the resources are not already available, you need to call beginAccessingResourcesWithCompletionHandler: to download them from the App Store.

How to implement similar in Unity?

 

Hi guys,

I used the AssetBundleManager and a modified LoadScene script from the bitbucket in order to download AssetBundle using the OnDemandResource feature for iOS.

The thing is that I needed to load a scene in background and wait before really load it and replace my current scene. So I modified the LoadScenes.cs in order to be able to access the current asyncOperation request and change the allowSceneActivation to false and then set it back to true when needed.

I did those modifications real quick in order to test - at the beginning everything looked fines but sometimes even if the allowSceneActivation was set to false the scene will automatically load and replace my current scene as soon as it's ready.

I noticed that if I use multiple instances of the LoadScenes.cs script I will have multiple instances of the AssetBundleManager in my scene because it creates a GO and pass it to DontDestroyOnLoad method.

I was wondering if someone tried to make an example script like the LoadScenes script but with the option to set the allowSceneActivation property ?

I'm really close to finish my project - just need that AssetBundles and ODR to work properly - so any help would be great

 

Hi,

Is it possible to target device resolution when using variant settings ? I see it's possible to add a custom entry but I have no idea what would be the key for that case.

Thanks

 

Hi,

I'm nearly completed implementation of ODR but only I need a way to check if asset is downloaded and exist somewhere in cache I understand this is unavailable right now, and there is no workaround? Is any planned date when this feature will be live?

Thanks for any help

 

Hi,

I am working on a game and we want to use our 100+ asset bundles with ODR but we didn't find anywhere anything about asset bundle dependencies. How are they handeled?

Thanks.

 

If you are using Unity 5 Asset Bundle system for all of them, then dependencies between bundles should be tracked automatically.

 

Hello,

I've been trying to figure out App Slicing in vain. To make things simple, here's what I did:

• I downloaded the example project on Bitbucket
• I switched to the iOS Platform
• I selected the Variant scene.
• I built Asset Bundles (Assets > Asset Bundles > Build Asset Bundles)
• I then built the project (Assets > Asset Bundles > Build Player)
• I opened the project in Xcode and saw that the only variant, non-ODR asset was missing (UnityData.xcassets > variants > logo).
• When building, I get the following errors:

Once I run the project on a device, here are the logs:

I have the same behaviour in my project.

I'm on Unity 5.3.5f1

Any ideas?

 

Hi, I have no such issue like build uploaded successfully and notify in test flight app also but still 0 asset packs . can you help me why it is happening ?? Thank you

 

Hi, I've gotten App Slicing working, a bit of a bumpy ride, for example we tried to bind the same resource twice and received some errors when generating the xcode project.

There are 2 questions we are trying to figure out.

1) In the demo project, BuildScript.cs:44, it says that #if ENABLE_IOS_APP_SLICING, then useBuildAssetBundleOptions.UncompressedAssetBundle

We tested both compressed and uncompressed asset bundles and they seem to work fine with App Slicing and TestFlight, with the difference that the install size is significantly smaller with compression turned on. The uncompressed would probably load a little faster than the compressed, but aside from that, are there any technical reasons "UncompressedAssetBundle" was used in the demo?

2) We wanted to use AppSlicing only and NOT On-demand-resources. Is it still the case that we have to turn on "Use on demand resources" in the project setting for AppSlicing to work? That would be a bumper because it raises required iOS version to 9.1

 

Hi, after updating to newest patch (5.3.5p5) I'm getting following errors, reverting unity version didn't help

Code (CSharp):

1. [AssetBundleManager] Requesting bundle iOS through ODR
2.  
3. AssetBundles.AssetBundleManager:LoadAssetBundleInternal(String, Boolean)
4.  
5. AssetBundles.AssetBundleManager:LoadAssetBundle(String, Boolean)
6.  
7. AssetBundles.AssetBundleManager:Initialize(String)
8.  
9. Tabasco.<ODRInitialize>c__IteratorD:MoveNext()
10.  
11. UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
12.  
13.  
14. (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
15.  
16. Failed downloading bundle iOS from odr://iOS
17.  
18. AssetBundles.AssetBundleLoadAssetOperationFull:IsDone()
19.  
20. AssetBundles.AssetBundleLoadOperation:MoveNext()
21.  
22. UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
23.  
24.  
25. (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
26.  
27.  
28. Unhandled Exception: System.NullReferenceException: GetRef
29.  
30.   at UnityEngine.AsyncOperation.Finalize () [0x00000] in <filename unknown>:0
31.  
32.   at UnityEngine.iOS.OnDemandResourcesRequest.Finalize () [0x00000] in <filename unknown>:0
33.  
34. UnityEngine.UnhandledExceptionHandler:PrintException(String, Exception)
35.  
36. UnityEngine.UnhandledExceptionHandler:HandleUnhandledException(Object, UnhandledExceptionEventArgs)
37.  
38.  
39. (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)

Thanks for help

 

Do you mean to say that there's no way to externalise streaming assets using ODR? I'm led to believe the only option for playing movies on iOS and Android is to have those in the Streaming Assets folder. Is there some option for being able to externalise videos in an asset bundle to use with ODR, then on load they'll play on mobile devices?

 

I think it won't work out of the box. Putting streaming assets directly into ODR is possible (via ODR callback), but the loading part would need to be done as native plugin, and you would need to modify video player implementation in Xcode project to take video from ODR.