Version: 2017.2
public static void DrawLine (Vector3 from, Vector3 to);

説明

from から to に向かってラインを描画します

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public Transform target; void OnDrawGizmosSelected() { if (target != null) { Gizmos.color = Color.blue; Gizmos.DrawLine(transform.position, target.position); } } }