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Learn how to create augmented reality

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Introduction

Augmented reality (AR) is a technology that overlays digital information on top of the real world. AR has numerous applications in various fields, including gaming, education, and healthcare. With the rise of smartphones and other mobile devices, AR is becoming increasingly accessible to everyone. In this article, we will explore how to create augmented reality using Unity, one of the most popular AR development platforms.

Part 1: Setting up Unity Project

The first step in creating AR is to set up a Unity project. Unity is an open-source game engine that supports 2D and 3D graphics, as well as AR development. To create an AR project in Unity, follow these steps:

  • Open Unity Hub, a free account required for Unity download.
  • Click on "New Project" and select the version of Unity you want to use.
  • Choose a template, such as 2D Platformer or 3D Object, depending on your project requirements.
  • Name your project, choose a location, and click on "Create."

    Part 2: Creating AR Scene

    Once you have set up the Unity project, you need to create an AR scene. An AR scene is a 3D environment where you will place AR objects. To create an AR scene in Unity, follow these steps:

  • Open your project in Unity Editor.

    Part 2: Creating AR Scene

  • Go to "Window" > "AR Foundation" > "AR Scene."
  • Select the "Plane" object and drag it onto the AR canvas. This will create a flat surface for you to place AR objects on.
  • You can add more 3D objects, such as cube or sphere, by going to "Assets" > "Import Package" > choosing the 3D model you want to import.

    Part 3: Creating AR Objects

    Now that you have created an AR scene, you need to create AR objects to place on it. AR objects are 3D models that overlay digital information on top of the real world. To create an AR object in Unity, follow these steps:

  • Go to "Assets" > "Create" > "3D Object."
  • Choose the 3D model you want to use and click on "Import."
  • Select the 3D object in the Hierarchy view and go to "Inspector" > "Component" > "AR Raycast Tracker." This component will allow the 3D object to be tracked by AR devices.
  • You can add more components, such as "AR Plane" or "AR Portable Plane," depending on your project requirements.

    Part 4: Adding Interactivity

    To make your AR objects interactive, you need to add scripts that will allow users to interact with them. In Unity, there are many pre-made scripts available for AR development. To add a script, go to "Assets" > "Scripts" and drag the script onto the 3D object in the Hierarchy view.
    For example, you can use the "AR Tap to Place" script to allow users to place an AR object on a surface by tapping on it. You can also use the "AR Look at Target" script to make an AR object follow the user’s gaze.

    Part 5: Testing and Publishing

    Once you have created your AR objects and added interactivity, you need to test your AR application to ensure that it works as expected. To test your AR application, go to "Edit" > "Scene" > "Build Settings" and select the AR device you want to test on. Then click on "Build."
    After testing, you can publish your AR application on the App Store or Google Play Store. To publish your AR application, go to "Assets" > "Publishing" and follow the instructions provided by Apple or Google.

    Case Study: Pokemon Go

    Pokemon Go is a popular AR game that has captured the attention of millions of people worldwide. The game allows players to catch virtual creatures called Pok