How to use

zero

method

in

com.google.ar.sceneform.math.Vector3

public DragGesture(
  GesturePointersUtility gesturePointersUtility,
  HitTestResult hitTestResult,
  MotionEvent motionEvent) {
 super(gesturePointersUtility);
 pointerId = motionEvent.getPointerId(motionEvent.getActionIndex());
 startPosition = GesturePointersUtility.motionEventToPosition(motionEvent, pointerId);
 position = new Vector3(startPosition);
 delta = Vector3.zero();
 targetNode = hitTestResult.getNode();
 debugLog("Created: " + pointerId);
}

if (Vector3.equals(deltaPosition1, Vector3.zero())
  || Vector3.equals(deltaPosition2, Vector3.zero())) {
 return false;

if (!Vector3.equals(deltaPosition1, Vector3.zero()) && Math.abs(dot1) < dotThreshold) {
 return false;
if (!Vector3.equals(deltaPosition2, Vector3.zero()) && Math.abs(dot2) < dotThreshold) {
 return false;

desiredLocalPosition = Vector3.zero();
desiredLocalRotation = calculateFinalDesiredLocalRotation(Quaternion.identity());