updateMatrixWorld method
This overrides the method in the base Object3D class so that it
also updates the wireframe box to the extent of the box property.
Implementation
@override
void updateMatrixWorld([bool force = false]) {
final box = this.box!;
if (box.isEmpty()) return;
box.getCenter(position);
box.getSize(scale);
scale.scale(0.5);
super.updateMatrixWorld(force);
}