無限大を表現します（読み取り専用）
// Casts a ray from (0,0,0) towards (0,0,1) to the infinity and prints a message
// if any object has touched the ray.
// To test it, just place any object and intersect it with the white drawn line
function Update () {
// shows the line that follows the ray.
Debug.DrawLine(Vector3.zero, Vector3.forward * 100);
if (Physics.Raycast (Vector3.zero, Vector3.forward, Mathf.Infinity)) {
print ("There is something in front of the object!");
}
}
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { void Update() { Debug.DrawLine(Vector3.zero, Vector3.forward * 100); if (Physics.Raycast(Vector3.zero, Vector3.forward, Mathf.Infinity)) print("There is something in front of the object!"); } }