Creating an AR Face Filter App with Unity

In this tutorial, we'll walk through the steps to create an AR face filter app using Unity. We'll be using AR Foundation, a package that allows you to build cross-platform AR experiences, and a free asset pack for the face filter.

• Refer This YouTube Link-https://youtu.be/xrN7wDeEUMc?si=gU-MNl7JTkojVNI3

      Step 1: Switch Platform to Android

• Before you begin, make sure you switch your Unity project's platform to Android. Go to File > Build Settings, select Android, and click on Switch Platform.

      Step 2: Install AR Foundation

• In the Unity Editor, open the Package Manager (Window > Package Manager) and search for AR Foundation. Click Install to add it to your project.

    Step 3: Set Up AR Session

•     Add the XR AR Session.(Add Component > XR > AR Session).

     Step 4: Set Up AR Session Origin mobile

• Add the XR AR Session Origin mobile. (Add Component > XR > AR Session Origin mobile).

     Step 5: Configure AR Camera

• Find the Main Camera under the AR Session Origin in the Hierarchy.
• Add the AR Camera Manager component to the Main Camera.

•  In the AR Camera Manager component, change the Facing Direction to User.

      Step 6: Create AR Face Prefab

• Right-click in the Hierarchy window and create a new XR > AR Default Face GameObject. This will create a prefab for the face filter.
• Drag this new prefab into your Assets folder to create a prefab asset.

     Step 7: Download AR Face Filter Asset Pack

• Download a free AR face filter asset pack from https://github.com/praneeth724/AR-Face-Filter.git.

      Step 8: Add AR Face Filter

• Import the downloaded asset pack into your Unity project.
• Use the assets from the pack to create your AR face filter. You can customize the filter using the provided assets.

    Step 9: Build Settings

      Before building your project, make sure to configure the Player Settings:

• Go to Edit > Project Settings > Player.
• In the Other Settings section, uncheck Auto Graphics API.
• If you added the Vulkan Graphics API, remove it.
• Set the Minimum API Level to 8 or higher.

      Step 10: XR Plugin Management

• Go to Edit > Project Settings > XR Plugin Management.
• Choose Google AR Core from the list of XR Plug-in Providers.

    

    Step 11: Build and Run

• Finally, build your project for Android and run it on a compatible device. You should now have a working AR face filter app!

That's it! You've successfully created an AR face filter app using Unity. Experiment with different assets and configurations to customize your AR experience further.