Augmented Reality in Unity (Project Setup)

Computer Graphics for Virtual

and Augmented Reality

Lecture 07 – Augmented Reality in Unity

(Project Setup)

Edirlei Soares de Lima

<edirlei.lima@universidadeeuropeia.pt>

Augmented Reality in Unity

•

Unity XR system offers support for Virtual Reality (VR), Mixed

Reality (MR), and Augmented Reality (AR).

Augmented Reality in Unity

Project Setup

•

Setup a new AR Project in Unity:

1

. Create new 3D Project.

2

. Install the "AR Foundation" in the Package Manager (Window ->

Package Manager).

3

4

. Install the "ARCore XR Plugin" in the Package Manager (Window ->

Package Manager).

. Open the Project Settings (Edit -> Project Settings) and select the XR

Plug-in Management.

•

In the Android tab, enable the "ARCore" Plug-in Provider.

•

Select the ARCore settings and set Depth to “optional” (most current ARCore

capable devices do not have depth cameras).

5

. Open the Build Settings and Switch the target platform to Android

(File -> Build Settings).

Project Setup

•

Setup a new AR Project in Unity:

6

. Open the Project Settings window (menu: Edit > Project Settings),

and select Player. Select the Android settings tab and apply the

following changes:

•

Other Settings -> Rendering: uncheck auto graphics API and remove the Vulkan

Graphis API.

Other Settings -> Identification -> Package Name: create unique name for the

app.

Other Settings -> Minimum API Level: select API Level 24 or higher (API Level 24 is

the minimum for AR).

Other Settings -> Configuration -> Scripting Backend: Select IL2CPP and enable

the ARM64 architecture.

Project Setup

•

Setup a new AR Project in Unity:

7

. Remove the default camera from the scene.

8

. Create the AR Session in the scene (GameObject -> XR -> AR

Session).

•

The AR Session controls the lifecycle of AR app, checks for AR device support,

manages the state of the session, and provides ways to enable and disable AR.

9

. Create the AR Session Origin in the scene (GameObject -> XR -> AR

Session Origin).

•

AR Session Origin: applies transformations from trackable features to anchored

objects.

AR Pose Driver: controls the position and orientation of the camera according to

the device’s tracking information.

AR Camera Manager: manages the camera’s auto focus, activate light estimation,

allow to switch between the world- and user-facing camera.

Project Setup

•

Setup a new AR Project in Unity:

1

0. Build the project (File -> Build Settings).

1

1. Copy the .apk file to an Android Device and install the app.

•

You may need to allow app installations from unknown sources in the device

settings.

1

2. Run the app.

• It will simply show the camera image in the background.