README.md

# AR.js - Efficient Augmented Reality for the Web

I am focusing hard on making AR for the web a reality.
This repository is where I publish the code.
Contact me anytime [@jerome_etienne](https://twitter.com/jerome_etienne).
Stuff are still moving fast, We reached a good status tho.
An article has been published on [uploadvr](https://uploadvr.com/ar-js-efficient-augmented-reality-for-the-web/).
So I wanted to publish thus people can try it and have fun with it :)

- **Very Fast** : it runs efficiently even on phones. [60 fps on my 2 year-old phone](https://twitter.com/jerome_etienne/status/831333879810236421)!
- **Web-based** : It is a pure web solution, so no installation required. Full javascript based on three.js + jsartoolkit5
- **Open Source** : It is completely open source and free of charge!
- **Standards** : It works on any phone with [webgl](http://caniuse.com/#feat=webgl) and [webrtc](http://caniuse.com/#feat=stream)

[![AR.js 1.0 Video](https://cloud.githubusercontent.com/assets/252962/23441016/ab6900ce-fe17-11e6-971b-24614fb8ac0e.png)](https://youtu.be/0MtvjFg7tik)



If you wanna chat, check [![Gitter chat](https://badges.gitter.im/AR-js/Lobby.png)](https://gitter.im/AR-js/Lobby)

# Try it on Mobile

It works on all platforms. Android, IOS and window phone. It run **any browser with WebGL and WebRTC**.
(for IOS, you need to update to ios11)

To try on your phone is only 2 easy steps, check it out!

1. Open this [hiro marker image](https://jeromeetienne.github.io/AR.js/data/images/HIRO.jpg) in your desktop browser.
1. Open this [augmented reality webapps](https://jeromeetienne.github.io/AR.js/three.js/examples/mobile-performance.html) in your phone browser, and point it
to your screen.

**You are done!** It will open a webpage which read the phone webcam, localize a hiro marker and add 3d on top of it, as you can see below.

![screenshot](https://cloud.githubusercontent.com/assets/252962/23072106/73a0656c-f528-11e6-9fcd-3c900d1d47d3.jpg)

# Standing on the Shoulders of Giants

So we shown it is now possible to do 60fps web-based augmented reality on a phone.
This is great for sure but how did we get here ? **By standing on the shoulders of giants!**
It is thanks to the hard work from others, that we can today reach this mythic 60fps AR.
So i would like to thanks :

- **three.js** for being a great library to do 3d on the web.
- **artoolkit!** years of development and experiences on doing augmented reality
- **emscripten and asm.js**! thus we could compile artoolkit c into javascript
- **chromium**! thanks for being so fast!

Only thanks to all of them, i could do my part : Optimizing performance from 5fps on high-end
phone, to 60fps on 2years old phone.

After all this work done by a lot of people, we have a *web-based augmented reality solution fast enough for mobile*!

Now, many people got a phone powerful enough to do web AR in their pocket.
I think this performance improvement makes web AR a reality.
i am all exited by what people are gonna with it :)

# Performance

We are still early in the project but here are some initial numbers to give you an idea.

- I got 60fps stable on nexus6p
- Some reports [Sony Xperia Z2 (2.5 years old) runs around 50fps](https://twitter.com/leinadkalpot/status/834121238087925763) - this is a 170euro phone
- Some reports [~50fps on a old nexus5, and ~60fps on nexus 9](https://twitter.com/Ellyll/status/834312442926751744) - nexus5 is 3.5 years old!
- Some reports it working on windows phone edge!! [13fps on Lumia 950](https://twitter.com/leinadkalpot/status/834299384510763012) for some.
  [40-45fps on lumia 930](https://twitter.com/fastclemmy/status/834817155665391616) for others.

Obviously you mileage may vary. The performance you get will depend on 3 things: How heavy your 3D is, How you tune your parameters
and the hardware that you are using.

![screenshot](https://cloud.githubusercontent.com/assets/252962/23068128/40343608-f51a-11e6-8cb3-900e37a7f658.jpg)

# Full Featured Marker based
With this project, we bring more performance to artoolkit.
artoolkit is a software with years of experience doing augmented reality. It is able to do a lot!

It is marker based. It supports a wide range of markers: multiple types of markers [pattern](https://artoolkit.org/documentation/doku.php?id=3_Marker_Training:marker_training)/[barcode](https://artoolkit.org/documentation/doku.php?id=3_Marker_Training:marker_barcode)
multiple independant markers at the same time, or [multiple markers acting as a single marker](https://artoolkit.org/documentation/doku.php?id=3_Marker_Training:marker_multi)
up to you to choose.

# What’s New?
Recently, we’ve been getting creative and working on developing new things with AR.js. One of them is playing around with [shadows](https://twitter.com/jerome_etienne/status/837240034847764480), syncing the position of virtual lights with reality for a more life-like finish:
![screen shot 2017-03-16 at 21 06 24](https://cloud.githubusercontent.com/assets/6317076/24018623/7f787ba8-0a8c-11e7-8088-fea4799b5d09.png)

We’ve been collaborating very closely with [Fredrick Blomqvist](https://twitter.com/snigelpaogat). His input has had a great impact on AR.js innovation and we want to thank him. Together, we’ve been implementing [refraction](https://twitter.com/jerome_etienne/status/838749280999518208), giving the 3d a transparent/glassy effect. It ended up having a nice polished look. What do you guys think?
![screen shot 2017-03-06 at 16 31 28](https://cloud.githubusercontent.com/assets/6317076/23832948/9b64c79e-0736-11e7-9cb8-747f6a8fc082.png)

Other crazy ideas we’ve been working on include a [hole in the wall](https://twitter.com/jerome_etienne/status/836754117964017664) and a [portal into another world](https://twitter.com/jerome_etienne/status/838404908235776000). We want to take AR.js to new dimensions.
![screen shot 2017-03-12 at 15 19 51](https://cloud.githubusercontent.com/assets/6317076/23833024/b2e045be-0737-11e7-9ef0-8e1ac9e49ba8.png)
![screen shot 2017-03-07 at 10 08 39](https://cloud.githubusercontent.com/assets/6317076/23833015/947f6abe-0737-11e7-9a0d-1ea919f6ffbe.png)

# principles
- "Shared #ar is a lot more real than solo #AR." - Augmented reality principle [tweet](https://twitter.com/jerome_etienne/status/847889867296124933)
- "The marker must be a portal from where the virtual emerges." by @AndraConnect - #AR principles at dinner 😏 [tweet](https://twitter.com/jerome_etienne/status/842112692211056640)

# Status
- At the three.js level is the main one. It is working well and efficiently
- a-frame component - it export ```<a-marker>``` tag. It becomes real easy to use.
  It allows the things three.js extension does. Here are some slides
  [aframe-artoolkit](http://jeromeetienne.github.io/slides/artoolkit-aframe/)
- webvr-polyfill: it is kind of working - still a work-in-progress

# Augmented reality for the web in less than 10 lines of html

A-Frame magic :) All details are explained in this super post
["Augmented Reality in 10 Lines of HTML - AR.js with a-frame magic"](https://medium.com/arjs/augmented-reality-in-10-lines-of-html-4e193ea9fdbf)
by
[@AndraConnect](https://twitter.com/AndraConnect).

```html
<script src="https://aframe.io/releases/0.5.0/aframe.min.js"></script>
<script src="https://jeromeetienne.github.io/AR.js/aframe/build/aframe-ar.js"></script>
<body style='margin : 0px; overflow: hidden;'>
	<a-scene embedded artoolkit='sourceType: webcam;'>
		<a-box position='0 0 0.5' material='opacity: 0.5;'></a-box>
		<a-marker-camera preset='hiro'></a-marker-camera>
	</a-scene>
</body>
```

See on [codepen](https://codepen.io/jeromeetienne/pen/mRqqzb) or [bl.ocks.org](https://bl.ocks.org/jeromeetienne/feeb69257803e69f18dc3ea5f4fc6d71)

# Posts on medium
We started a [AR.js blog](https://medium.com/arjs), thus we can write about
all the crazy ideas related to AR.js.

- ["Area Learning with Multi-Markers in AR.js - For a Larger & More Stable Augmented Reality"](https://medium.com/arjs/area-learning-with-multi-markers-in-ar-js-1ff03a2f9fbe)
- ["WebVR for Augmented Reality - Using WebVR to write cross-platform AR applications"](https://medium.com/arjs/webvr-for-augmented-reality-f1e69a505902)
  by [@jerome_etienne](https://twitter.com/jerome_etienne)
- ["Augmenting The Web Page - Bringing augmenting reality to normal web pages"](https://medium.com/arjs/augmenting-the-web-page-e893f2d199b8)
  by [@jerome_etienne](https://twitter.com/jerome_etienne)
- ["Server Rendering for Augmented Reality - Cloud Rendering with Web Standards"](https://medium.com/arjs/server-rendering-for-augmented-reality-2de0a71aae04)
  by [@jerome_etienne](https://twitter.com/jerome_etienne)
- ["AR-Code:a Fast Path to Augmented Reality - From qrcode to AR.js content"](https://medium.com/arjs/ar-code-a-fast-path-to-augmented-reality-60e51be3cbdf)
  by [@jerome_etienne](https://twitter.com/jerome_etienne)
- ["Augmented Reality in 10 Lines of HTML - AR.js with a-frame magic"](https://medium.com/arjs/augmented-reality-in-10-lines-of-html-4e193ea9fdbf)
  by [@AndraConnect](https://twitter.com/AndraConnect)


How to write a AR.js application ? Here is a
[full tutorial](https://marmelab.com/blog/2017/06/19/augmented-reality-html5.html)
by [marmelab](https://marmelab.com/) featuring [François Zaninotto](https://twitter.com/francoisz).
It explain how to code a full application on phone! Step by Steps, with explaination and videos. 
Very great! the perfect step if you want to start writing AR application today.


# Examples

Some applications:

- [Pattern Marker Training](https://jeromeetienne.github.io/AR.js/three.js/examples/marker-training/examples/generator.html) :
  Generate a [pattern marker](https://artoolkit.org/documentation/doku.php?id=3_Marker_Training:marker_training) with your own image.
- [ARCode Generator](https://jeromeetienne.github.io/AR.js/three.js/examples/arcode.html) :
  Generator of AR-Code
  ([source](https://github.com/jeromeetienne/AR.js/blob/master/three.js/examples/arcode.html))
- [WebAR Playground](https://jeromeetienne.github.io/webar-playground/) :
  Playground running in WebAR with ar.js/chromiumAR

[ALL EXAMPLES](docs/EXAMPLES.md)

# Folders
- ```/three.js``` is the extension to use it with [pure three.js](https://threejs.org)
- ```/aframe``` is the extension to use it with [a-frame](https://aframe.io)
- ```/webvr-polyfill``` is the WebVR polyfill so you can reuse your #AR / #VR content easily

# Licenses
It is **all open source** ! jsartoolkit5 is under LGPLv3 license and additional permission.
And All my code in AR.js repository is under MIT license. :)

For legal details, be sure to check [jsartoolkit5 license](https://github.com/artoolkit/jsartoolkit5/blob/master/LICENSE.txt)
and [AR.js license](https://github.com/jeromeetienne/AR.js/blob/master/LICENSE.txt).

# Change Log
[CHANGELOG.md](https://github.com/jeromeetienne/AR.js/blob/master/CHANGELOG.md)

# What's Next ?

We did good on performance, but there are still a lot of room for optimisation.
Using [webworkers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers)
would increase cpu usage. Compiling in [webassembly](https://webassembly.org) instead
of [asm.js](http://asmjs.org/) should improve loading time and likely cpu performance.
And obviously, we can still do more parameters tweaking :)


I would like people start experience augmented reality and play with it.
This is highly creative! Just look at this [puzzle game in #AR playing with mirror and laser beam](https://www.youtube.com/watch?v=OzLJb7HitvA).
You could do it with AR.js, so opensource and running on normal phones, no need to buy a new device. isn't that great!


Augmented reality on phone have applications in many fields:
[history education](https://www.youtube.com/watch?v=gyp8ZYtyu_M)
, [science](https://www.youtube.com/watch?v=gMxdBdLpVgc)
or [gaming](https://www.youtube.com/watch?v=kEMDgvfFUcI).
I exited to see what people will do with AR.js :)


# Browser Support
Demo tested on the following browser setups:
- **Desktop Chrome with webcam and 2 tabs** (one for Hero, one for result) (works!)
- **Android native 4.4.2** (doesn't work, doesn't ask for permission to use camera. I see white background and text)
- **Android native 5.0** (doesn't work, doesn't ask for permission, I see white background and text)
- **Chrome on Android 4.4.2** (works!)
- **Chrome on Android 5.0** (doesn't work, asks for permission, I see black background, text and a chart)
- **Safari and Chrome on iOS 8.2 (iPad)** (doesn't work, doesn't ask for permission, I see white background and text)
- **Microsoft Edge on Windows 10** (Chrome on Google Pixel phone to view hologram)

Credits: @HelloDeadline, @sorianog


# Future

[FUTURE.md](docs/FUTURE.md)

# FAQ

[FAQ.md](docs/FUTURE.md)