---
title: "Ray Perception"
content_type: tutorial
url: "https://learn.unity.com/tutorial/ray-perception?language=en"
language: en
difficulty: intermediate
duration_minutes: 10
unity_version:
  - "2019.3"
supported_unity_versions:
  - name: "2019.3"
    url: "https://learn.unity.com/tutorial/ray-perception.md?language=en&version=2019.3"
available_languages:
  - name: "en"
    url: "https://learn.unity.com/tutorial/ray-perception.md?language=en"
  - name: "ja"
    url: "https://learn.unity.com/tutorial/ray-perception-1.md?language=ja"
last_updated: "2026-08-04T14:24:49.000Z"
---

# Ray Perception

Learn how ray perception gathers information from the game world for use in your Unity project.

In this tutorial you will learn about ray perception.

## 1. Ray Perception

[Video](https://connect-mediagw.unity.com/h1/20200525/videos/731ec4b2-7938-4436-89a5-1ce484f6963c_04_scenesetup_04.mp4) ([Transcript (en)](https://connect-mediagw.unity.com/h1/20200730/fe57517f-3185-4371-a5b2-cbd2857ba8fb_04_scenesetup_04.vtt))