Bone rotation doesn't work

Bugs
1

Hey guys!

I’m currently working on some project, where I want to manually control certain bones.

Now, I’ve encountered an issue, where I can’t control the bone rotation. With neither the bone.rotate(), nor bone.rotation = …

Seems as if the rotation gets reset before each tick.

Works fine if I control the bone mesh though.

Am I doing something wrong there, or is this a bug?

PG:

2

It doesn’t work because there is a transform driving that bone.
You can either:

  • modify its tranform : properllerBone.getTransformNode().rotate(BABYLON.Axis.Y, .1);
  • or remove it’s transform then drive the bone yourself:
    properllerBone.linkTransformNode(null); properllerBone.rotate(BABYLON.Axis.Y, .1);
1 Like
3

Ah, ok, thanks! I thought that by default the bone always drives the transform node, not vice-versa!

4

It depends on where the mesh comes from: if coming from gltf/glb, it is the transform node that drives the transformation, else it is the transform matrices of the bone itself.

5 Likes
5

@Evgeni_Popov
Thank you for this valuable information

1 Like