How to evaluate a PlayableGraph at a specific time?

Here's what I want to do:

• I have an animator with a single animation in its animatorController
• I want to be able to tell it "go at time X and apply the state you'd have at that time"

Here's how I try to do this currently:

Code (CSharp):

1.  
2.     // Get the playableGraph of the Animator, and make it so that we have to manually update it
3.     PlayableGraph PlayableGraph = Animator.playableGraph;
4.     PlayableGraph.Stop();
5.     PlayableGraph.SetTimeUpdateMode(DirectorUpdateMode.Manual);
6.  
7.     // Get the AnimationClipPlayable of the animation
8.     // (I get it in a less ugly way in my real code. I promise!)
9.     _clipPlayable = PlayableGraph.GetRootPlayable(0)
10.         .GetInput(0)
11.         .GetInput(0)
12.         .GetInput(0)
13.         .GetInput(0);
14.    
15.     // Set the time of the clip to some arbitrary time we'd want to sample
16.     _clipPlayable.SetTime(15.875);
17.  
18.     Debug.Log(_clipPlayable.GetTime()); // This outputs 15.875
19.  
20.     // Evaluate, so that the pose at that time should be applied
21.     PlayableGraph.Evaluate();
22.  
23.     Debug.Log(_clipPlayable.GetTime()); // This outputs 0
24.  

However, this doesn't work. The animated object remains at its initial position.
What I've found is that if I try to Debug.Log(_clipPlayable.GetTime()) just before doing Evaluate(), the value is correct. But after Evaluate(), the "_clipPlayable.GetTime()" is back to 0.

Is this normal? How can I accomplish what I want?

 

I've been having a few issues with calling Evaluate(0f) (Which is synonymous with the default .Evaluate() ) on a playablegraph. If I do it even once, it seemingly refuses to be evaluated again. If I'm careful to not update it without a significant delta (and never negative deltas sadly ) I can keep it alive, but what it considers "zero" is seemingly a bit bigger than float.Epsilon.

A strange day.

 

I'm having a similar problem; only I am using an "AnimatorControllerPlayable" directly in a PlayableGraph. I have found that if you drive "PlayableGraph.Evaluate" with a non-zero delta time then it won't reset the time, but that seems like a little bit of a hack.

I even tried "SetPropagateSetTime" (discussed here), but that doesn't seem to fix the problem either.

It's been about a year with no real solution. I would like to know the proper way to manually drive a PlayableGraph that contains an "AnimatorControllerPlayable."

Is there any way we can get a more technical answer to this question?

 

I think I have a similar request to the original question.

Old Animation clips had this nice function: clip.SampleAnimation(SomeObject, 15.48f); which would set the state of the object to exactly that timestamp.

It'd be great to have a playableDirector.SampleTimeline(4f); or, if that would be too much for the whole graph, perhaps per track we could sample the track at some time?

 

yes,if i try to play playable manually,it's work in editor,but in playtime,it will be override by animator.

 

Right, you will need to use LateUpdate(), as the Animator occurs after Update()