Streaming AnimationClip and overriding the mecanim AnimatorController

HI all!

I found a few posts explaining how to override a AnimatorController clip with the AnimatorOverrideController but I still seem to have issues with playing the actual clip that i'm overriding with.

I'm streaming AnimationClips with an AssetBundle. Here's what my code looks like right now:

Code (csharp):

1.  
2. public AnimationClip ANIMATIONCLIP;
3.  
4. void SetNewAnimation(WWW w)
5.     {      
6.         foreach (Object item in w.assetBundle.LoadAll())
7.         {
8.             if (item.name == "idle_shakes") ANIMATIONCLIP = (AnimationClip)item;
9.         }
10.  
11.         RuntimeAnimatorController myController = animator.runtimeAnimatorController;
12.         AnimatorOverrideController animatorOverride = new AnimatorOverrideController();
13.         animatorOverride.runtimeAnimatorController = myController;
14.        
15.         animatorOverride["oldclip"] = ANIMATIONCLIP;
16.  
17.         animator.runtimeAnimatorController = animatorOverride;
18.  
19.     }

This seems to work as far as loading the animation from the bundle and setting the animation clip to override the old clip. When I get to actually playing the animation (the animation is played from the Any State node when I set a trigger), my character freezes. When I trigger another animation state it transitions to the new animation correctly. Only the overriden animation causes this problem. If I set the same animation directly in my controller and don't override anything, it works fine. Is there something I'm not aware of like overriding clips need to have the same length or something like that?

 

I changed my AssetBundle to contain not only the AnimationClip but the actual fbx and now it works. I guess it is a requirement for mecanim that the animation import parameters be present in the AssetBundle for the override to work ?

 

You drag in the FBX, but the FBX isn't what's stored in the asset bundle - it's the imported animation data derived from that FBX. (Generally speaking, storage file formats and runtime data formats are completely different things. In the Editor we play with the former, but the runtime uses everything as the latter.)

So to answer your question, short answer "yes", longer answer "it's the animation data you need that you're adding, not the import settings themselves".

Hope that helps!

 

Sorry I didn't see this post before today, my notifications don't seem to work properly most of the time. I ran some tests and this issue seems to have been fixed. Thank you.

I have one more question though. Is it possible to define animation states as empty (no animation clip assigned) and populate the state with streamed animation clips at runtime? Right now it seems I have to assign an animation clip to a state and override the animation clip by name with my new animation. What I'd like to do instead is assign a clip at runtime without the need to stream placeholder animation clips in my Animator beforehand.

 

Okay, it's not a huge issue. Thanks!

 

Hi,
I am spending my whole day to solve same problem as you.

'Overrided animation clip by AssetBundle doesn't work, but draging actual fbx works without any problem.'

It seems that you already solved your problem, and can you please answer me how you solved it?

Thanks in advance.

 

I understand your explain.
But I am sorry, but would you please explain how to come over the problem?
How can I load AnimationClip from AssetBundle?

I duplicated all the AnimationClip from FBX import setting. And then, made AssetBundle with it.
As long as I know, at this moment when I duplicate them, AnimationClip became runtime data format, didn't it?

Thanks in advance.

 

Wow!! I finally solved my problem.
My problem was that I was initiating AnimationClip after loading it, which need to be loaded only.

 

Check this out awesome example https://github.com/nonehill/DynamicallyLoadingAnimation