Vector3.Reflect

パラメーター

説明

法線で定義された平面でベクトルを反射します。

This method calculates the reflection vector using the following formula: v = inDirection - 2 * inNormal * dot(inDirection inNormal). The inNormal vector defines a plane. A plane's normal is the vector that is perpendicular to its surface. The inDirection vector is treated as a directional arrow coming into the plane. The returned value is a vector of equal magnitude to inDirection but with its direction reflected.


Reflection of a vector off a plane.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public Transform originalObject;
    public Transform reflectedObject;

    void Update()
    {
        // Makes the reflected object appear opposite of the original object,
        // mirrored along the z-axis of the world
        reflectedObject.position = Vector3.Reflect(originalObject.position, Vector3.right);
    }
}