AR.js is a popular library for augmented reality experiences on the web. It uses JavaScript and WebXR technologies to create AR experiences that can be viewed in a web browser. Vue3 is a modern JavaScript framework that allows you to build powerful and scalable web applications with ease.
In this guide, we will show you how to use AR.js in production mode with Vue3. This will allow you to create AR experiences that can be deployed to a production environment and used by a wide audience.
Prerequisites
Before we begin, there are a few things you will need:
- A basic understanding of JavaScript and web development.
- A local development environment with Node.js and npm installed.
- A code editor, such as Visual Studio Code.
- A webcam or other camera-enabled device for testing AR experiences.
Setting up a Vue3 Project
The first step is to create a new Vue3 project. To do this, open a terminal window and navigate to a directory where you want to store your project. Then, run the following command:
npm init vue@latest
This will create a new Vue3 project with all the necessary files and dependencies. Follow the prompts to name your project and select a preset. For this guide, we will use the default preset.
Once the project is created, navigate to the project directory and run the following command to start the development server:
npm run serve
This will start the development server and open your project in a web browser. You can now start building your AR experience.
Adding AR.js to Your Project
To use AR.js in your Vue3 project, you will need to add the AR.js library to your project. You can do this by running the following command:
npm install ar.js
Once the library is installed, you can import it into your Vue3 component using the following code:
import * as arjs from 'ar.js';
Creating an AR Experience
Now that you have AR.js installed and imported, you can start creating your AR experience. The first step is to create a canvas element where the AR experience will be rendered. You can do this by adding the following code to your Vue3 component:
<canvas id="ARjs-canvas"></canvas>
Next, you will need to initialize AR.js and create a session. This can be done using the following code:
const canvas = document.getElementById('ARjs-canvas');
const arjs = new AR.Session(canvas, {
cameraParametersUrl: '/static/camera_para.dat',
}
);
This will create a new AR session and initialize the AR.js library. The cameraParametersUrl property specifies the location of the camera parameter file, which is used to calibrate the camera and AR experience. This file is included with AR.js and should be placed in the static directory of your Vue3 project.
Once the AR session is created, you can start adding AR content to your experience. This can be done by creating new AR.Image, AR.Model, or other AR objects and adding them to the AR session. For example, the following code will create a new AR.Image object and add it to the AR session:
const image = new AR.Image
```
{
source: '/static/image.png',
x: 0,
y: 0,
z: -1,
},
arjs.add(image);
```
This will create a new AR.Image object and add it to the AR session. The source property specifies the location of the image file, which should be placed in the static directory of your Vue3 project. The x, y, and z properties specify the position of the image in the AR experience. You can adjust these values to position the image in the desired location.
Testing Your AR Experience
To test your AR experience, you will need a webcam or other camera-enabled device. Open your Vue3 project in a web browser and grant the browser access to your camera. Then, point the camera at a surface and your AR experience should be displayed on the surface.
Deploying to Production
Once you are satisfied with your AR experience, you can deploy it to a production environment. To do this, you will need to build your Vue3 project and deploy it to a web server. This can be done by running the following command:
npm run build
This will create a dist directory with all the necessary files for your Vue3 project. You can then deploy these files to a web server and share your AR experience with the world.
In this guide, we have shown you how to use AR.js in production mode with Vue3. You have learned how to create a Vue3 project, add AR.js to your project, create an AR experience, test your AR experience, and deploy it to a production environment. You can now use these skills to create your own AR experiences and share them with the world.
References
| Title | Author | Publication | Year |
|---|---|---|---|
| AR.js: Easy Augmented Reality for the Web | Jérôme Etienne | GitHub | 2018 |
| Vue.js 3: A Beginner's Guide | Anthony Gore | Vue Mastery | 2021 |