Skinning

Instances can play skeletal animations, each with its own pose.

iMesh.initSkeleton(skeleton);

for (const instance of iMesh.instances) {
  mixer.setTime(instance.time);
  instance.updateBones();
}

initSkeleton disables the automatic matrix update of the bones (they are updated per instance), improving performance.

To animate only the instances inside the camera frustum, use the onFrustumEnter callback:

iMesh.onFrustumEnter = (index) => {
  iMesh.instances[index].updateBones();
  return true;
};