clarification: moving bones

[LumiereDeLOmbre]

Hello,

Context: I have an animated model. I need to modify the position of a bone of this model. Too lazy to recreate the whole animation in the 3d program because more models reuse that animation. And I want to code a way to batch that.

The need: I know that a bone needs to be translated +1 on the global up axis. I want to modify its current position while not altering the rest.

The question: What field(s) should I modify to achieve that? I am not sure about the inverseBindMatrix.

Thanks!

[ghost]

Maybe that could be of help: https://github.com/donmccurdy/glTF-Transform/blob/5c35405d28e5e7638ef55e502aa12347a3ce6427/packages/core/src/properties/node.ts#L129-L146 Maybe I need to convert the current bone to its world position, then modify it, and reapply the code in reverse to rebind it?

Is it the way to do it?