NavMesh.AllAreas

설명

Area mask constant that includes all NavMesh areas.

The mask can be used in query functions, such as NavMesh.Raycast, to indicate that all NavMesh area types are accepted.

// TargetReachable.cs
using UnityEngine;
using System.Collections;
public class TargetReachable : MonoBehaviour
{
    public Transform target;
    private NavMeshHit hit;
    private bool blocked = false;
    void Update()
    {
        // Allow pass through all area types when testing if the target position
        // is reachable from the transform location.
        blocked = NavMesh.Raycast(transform.position, target.position, out hit, NavMesh.AllAreas);
        Debug.DrawLine(transform.position, target.position, blocked ? Color.red : Color.green);
        if (blocked)
            Debug.DrawRay(hit.position, Vector3.up, Color.red);
    }
}

See also:
• Areas and Costs – to learn how to use different Area types.