Error with vmd Animations on MMDLoader >> `Error: THREE.MMDPhysics: Import ammo.js https://github.com/kripken/ammo.js`

Questions
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1

I am encountering an error while using vmd animations with MMDLoader. When I set the physics parameter to false , the animations work fine. However, when I set it to true , I receive the following error:

Error: THREE.MMDPhysics: Import ammo.js https://github.com/kripken/ammo.js
    at new MMDPhysics

In an attempt to resolve the issue, I tried installing ammo.js, assuming it might be an uninstalled peer dependency. Unfortunately, this did not resolve the problem. After searching the web, I was unable to find any relevant information. Hence, I decided to seek assistance here. I am unsure whether this is a bug or if I am missing something, which is why I haven’t opened an issue on GitHub yet.

Currently, my code is written as follows:

    loader.loadWithAnimation(
      'path/to/model.pmx',
      'path/to/motion.vmd',
      (mmd) => {
        mmdAnimHelper.add(mmd.mesh, {
          animation: mmd.animation,
          physics: false, // true gives me the error
        });
        mmdAnimHelper.enabled.ik = false;

        ambientLight.lookAt(mmd.mesh.position);
        scene.add(mmd.mesh);
      },
      (xhr) => {
        if ((xhr.loaded / xhr.total) * 100 === 100)
          ref.current?.replaceChildren(renderer.domElement);
      },
      (error) => {
        console.error(error);
      }
    );

I am using next.js@13.4.x in my project, in case that information is relevant.

Any assistance or guidance would be greatly appreciated. Thank you in advance.

2

I think the model itself lacks info to be able to play nice with physics

https://alcea-wisteria.de/PHP/SampleWebMMD-master/?pmx=kh_aqua/Casual%20Aqua/Aqua%20[Casual%20Skirt].pmx

Fails miserably as soon as I enable physics also

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