public static Vector3 Cross (Vector3 lhs, Vector3 rhs);

説明

2 つのベクトルの外積

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { Vector3 GetNormal(Vector3 a, Vector3 b, Vector3 c) { Vector3 side1 = b - a; Vector3 side2 = c - a; return Vector3.Cross(side1, side2).normalized; } }