Version: 2019.1 (switch to 2018.4
LanguageEnglish
  • C#

RaycastHit.normal

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

public Vector3 normal;

Description

The normal of the surface the ray hit.

using UnityEngine;

public class Example : MonoBehaviour { // Calculate the reflection of a "laser beam" off a clicked object.

// The object from which the beam is fired. The incoming beam will // not be visible if the camera is used for this! Transform gunObj;

void Update() { if (Input.GetMouseButton(0)) { RaycastHit hit; Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

if (Physics.Raycast(ray, out hit)) { // Find the line from the gun to the point that was clicked. Vector3 incomingVec = hit.point - gunObj.position;

// Use the point's normal to calculate the reflection vector. Vector3 reflectVec = Vector3.Reflect(incomingVec, hit.normal);

// Draw lines to show the incoming "beam" and the reflection. Debug.DrawLine(gunObj.position, hit.point, Color.red); Debug.DrawRay(hit.point, reflectVec, Color.green); } } } }

Did you find this page useful? Please give it a rating: