Version: 5.6
public Vector3 forward ;

説明

ワールド空間の Transform の青軸

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public float thrust; public Rigidbody rb; void Start() { rb = GetComponent<Rigidbody>(); } void Update() { rb.AddForce(transform.forward * thrust); } }

他の例:

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public float angleBetween = 0.0F; public Transform target; void Update() { Vector3 targetDir = target.position - transform.position; angleBetween = Vector3.Angle(transform.forward, targetDir); } }