Can we combine animation groups into one?

Questions
1

there are two animations in the scene:

  • one came from a GLB file on import (“hover” animation for example)
  • and the other is created with BJS (xSlide -1 to 1 on position.x for example)

the desired outcome:
=> export a GLB file containing both “animation groups” as one.

(I realize there’s a possibility to unload the animations inside the gltf animationgroup, but that doesn’t seem scalable)

2

Hello!

By “unload”, what do you mean exactly?

3

I saw on other forum posts, that I can:

  • go inside the imported animationgroup
  • iterate on its animations and re-assign them to another animationgroup

my opinion is that that’s too much of a hassle, for a feature that is common enough to be bundled with the engine (would love to help out with a PR, just need some support from someone senior on the BJS codebase). Allowing animationgroups to be inserted inside other animationgroups would open a lot of cool possibilities.

(if there’s a solution I am not aware of, would really appreciate it :pray:)

1 Like
4

I see what you mean, thanks for clarifying! I think having this feature would be pretty nice (I’ll add @Deltakosh here on the discussion too as he might have an opinion too), and I’d be glad to help you get acquainted with the codebase so you can contribute :smiley:

2 Likes
5

awesome stuff! let’s wait for the Sith Lord @Deltakosh :stuck_out_tongue:

6

Following up on our discussion.
I just opened a feature request on Github, @carolhmj would appreciate your support when and “if” the feature is approved :pray:

issue:

1 Like
7

Hello, sorry for necro reading threads :slight_smile:

@feuerstein, I was wondering reading the posts and such, do you mean from within BabylonJS or DCC tools ?

In Babylon we are planning to support Animation group Blending cc @Evgeni_Popov and wonder how it could also fit with this request.

8

hey @sebavan would love it if you explain what you mean by blending. Because in unity, it means transitioning from one to the other, which I think bjs already supports.

What I am talking about is something like what was attempted with the additive animations.

Consider the case where you would compose a scene, with characters walking around (aka, bone animations, usually imported as their OWN animationGroup) and with other animations in the scene, say a windmill rotation for example.

The idea is to be able to export (bake, compile… whatever the term) everything in one animationGroup

9

Babylon supports animation blending but not animation group blending so far :slight_smile:

So in short I guess that once we ll be able to blend/layer groups together, the “baking” should be possible.

1 Like
10

indeed!

Just out of a pure PM annoying redundancy lol, animationGroup 1, starts at 0 and ends at 24 frames, animationGroup 2 also starts at 0 and ends at 24 frames. So it’s like “grouping animation groups” :slight_smile:

1 Like
11

AnimationGroups can be “blended” by setting each of their weight, 0.5 on both would be 50/50 blend, etc :thinking: