问LibGDX ModelInstance -无法重置比例，在缩放变形模型时设置变换

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    if(Intersector.intersectRayBoundsFast(pickRay, modelInstance[i].boundingBox)) {
        modelInstance[i].transform.getTranslation(modelInstance[i].position);//get the part's position and store it
        for(int j = 0 ; j < 3 ; j++) {
            arrow[j].transform = arrow[j].baseTransform.cpy();//reset the arrows transform
            arrow[j].transform.getRotation(arrow[j].rotation);//get the arrow's (unscaled) rotation and store it
            arrow[j].transform.set(modelInstance[i].position, arrow[j].rotation);//set the arrow's position and rotation
            arrow[j].changeSize('S');//rescale the arrow
        }

        break;
    }