Sharing Animation Between Objects

This topic has 2 replies, 2 voices, and was last updated 10 months, 3 weeks ago by masj.

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2023-12-31 at 6:00 am #69434

masj
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Hi,

I’m trying to wrap my head around the V3D animation system, using a combination of puzzles, JS, and backwards engineering (mixers can have multiple actions, and each action contains a single clip, and is bound to a single object, I think..?).

Anyways my question is:
Is there a way to apply animation actions/clips from one object to another in v3d?
I.e. simple transform keyframe animation clip from one object (position, rotation scale animated), and playing that on another 3D object?
Assumed workflow would be something like having a few 3D objects with animation to use as a sort of “animation library” that several other objects could reference/clone (rather than applying the same convoluted timeline of clips to every object, then chopping it up into clips per object in V3D, etc).

Please let me know if I can word anything more clearly if something doesn’t make sense…
Any insight/advice on the matter is hugely appreciated. Thanks!

2023-12-31 at 12:37 pm #69436
kdv
Participant
masj wrote:

mixers can have multiple actions, and each action contains a single clip, and is bound to a single object

Exactly.

You can clone a clip and bind it to another object.
```
const objAnim = v3d.SceneUtils.getAnimationActionByName(app, objName);
if (objAnim) {
  const newAnim = app.mixer.clipAction(objAnim._clip.clone(), newObj, objAnim.blendMode);
  newAnim._clip.name = newObj.name;
  newAnim._localRoot = objAnim._localRoot;
  objAnim._mixer._isActiveAction(objAnim) && newAnim.play();
  app.actions.push(newAnim);
}
```
Puzzles and JS coding. Fast and expensive.

If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.
2023-12-31 at 4:48 pm #69437

masj
Participant

Thank you, kdv!

I was hesitant to assign objects directly to what I was assuming were private properties, but this saves me a lot of going around in circles in the dev docs

Good to know about needing to update the app instance too. Thanks again!
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