index.js
function (from, to) {
    this.lerpingPosition = true;
    this.startLerpTimePosition = this.now();
    this.startPosition = new THREE.Vector3(from.x, from.y, from.z);
    this.targetPosition = new THREE.Vector3(to.x, to.y, to.z);
  }
function (from, to) {
    this.lerpingPosition = true;
    this.startLerpTimePosition = this.now();
    this.startPosition = new THREE.Vector3(from.x, from.y, from.z);
    this.targetPosition = new THREE.Vector3(to.x, to.y, to.z);
  }
Start lerp to position (vec3)