getWorldDirection method
      
Vector3
getWorldDirection(
    
- Vector3 target
inherited
    target — the result will be copied into this Vector3.
Returns a vector representing the direction of object's positive z-axis in world space.
Implementation
Vector3 getWorldDirection(Vector3 target) {
  updateWorldMatrix(true, false);
  final e = matrixWorld.storage;
  target.setValues(e[8], e[9], e[10]);
  target.normalize();
  return target;
}