Independent animations on instances

Questions
1

I’d like to have instances with animations running at different speeds and starting frames. I suppose the problem would be the same as having different animations on instances. I bothered you people before about this :slight_smile: and it should be possible: Weekly Video: Fun with Instance Buffers

But I still couldn’t find a way to do it. Here’s what I tried: https://www.babylonjs-playground.com/#6HVL7W#5 and the meshes are still in synchrony. What’s the mistake?

2

For this mesh, the animation comes from the skeleton and not the mesh itself.
YOu should check this: Use an AssetContainer - Babylon.js Documentation

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3

Thanks!

If anyone finds this post, here’s the announcement of AssetContainer.instantiateModelsToScene() and a PG explaining how to do it: Babylon.js Playground

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4

Minor question @Deltakosh, how do I add the instantiatedModel to a RTT?

this.renderTargetCaustic.renderList.push(node);

I tried something like

container.addAllToScene();

container.meshes.forEach((mesh) => {
  renderTarget.renderList.push(mesh);
});

for (let i = 0; i < 5; i++) {
  const entries = container.instantiateModelsToScene(p => p + i);

  for (const node of entries.rootNodes) {
    node.position.x += (i + 1) * 10;
    renderTarget.renderList.push(node);
  }
}

But though the instances are properly rendered on the main pass, they are not on the RTT.

5

you have to go through all meshes (not only the root nodes)

6

Thanks again. Working PG if anyone ever needs it: https://www.babylonjs-playground.com/#PM0FML#1

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7

But this creates clones of the animated mesh, not instances. Which is bad if you have more than a few meshes. I have a whole army of soldiers that look the same, and I want to create ~50 instances of the original imported soldier, while ensuring that each instance has a separate animation. Is it even possible to solve this problem with instances, or should I just use clones and hope for good performance?

8

Not possible with instances directly. If you could live say 5 soldiers having the same animation, you could create 10 of them, with 4 instance as well for each.

9

It can be done with instances but you will need to do a bit of work: InstancedMesh With Separate Skeleton ??? - Questions & Answers - HTML5 Game Devs Forum (see last post)

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10

Thx, I will look into it. I am still a noob tho, so I will also try to think of some alternative solutions… in case this turns up to be as complicated as I think it is.
Recently, I also saw a demo of a babylon.js scene using WebGPU with 10,000 loaded meshes! I can’t wait for this to happen! I feel like this will definitely solve my problem, because I will just be working with clones and the performance will still be great :DD.

11

You can have a look at this as well: Vertex Animation Textures

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