How do you make a separate blend tree asset?

How do you make the blend tree "separate"?

When a I create a blend tree in an animation controller nothing shows up in the assets.

 

I believe that a blend tree is embedded in the animation controller and can't be created on his own as an asset.
You might want to take a look at animation controller override asset instead.

 

Hmm, that doesn't seem to be it, I need the `BlendTree` to be an asset so it can be referenced by another script's `public BlendTree tree` property. I managed to create one by just copying the asset data, but I couldn't find a way to create one through the editor.

 

Well accessing the BlendTree through a script and having it as an asset are two different things.

Here's a thread that talks about that:
https://answers.unity.com/questions/1401279/how-can-i-access-blend-tree-in-animator-controller.html

What are you trying to do with that blend tree?

 

I'm following Unity.Animation samples along and this is the pattern they seem to follow.

Code (CSharp):

1. public class AnimationAuthor : MonoBehaviour, IConvertGameObjectToEntity, IDeclareReferencedPrefabs
2. {
3.     public BlendTree BlendTree;
4.     public GameObject RigPrefab;
5.  
6.     public void Convert(Entity entity, EntityManager manager, GameObjectConversionSystem converter)
7.     {
8.         ...
9.  
10.         var blendTreeIndex = BlendTreeConversion.Convert(BlendTree, rigEntity, manager, bakeOptions);
11.         manager.AddComponentData(rigEntity, new BlendTreeIndex { Value = blendTreeIndex });
12.     }
13. }

 

https://github.com/Unity-Technologi...mples/BlendTree1D/BlendTree1DGraph.cs#L10-L30

It seems to be how they get `UnityEngine` animations into the ECS world

 

From there the inputs to the blend tree are generated by a data flow graph (I think)

 

I'm honestly not sure about all that. The only thing I know is that you can create a blend tree in an asset in advance and override the animations using the "animation controller override" asset. That's what I do.