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Build a 3D Application with React and Three.js
A beginner’s guide to using Three.js, React and WebGL to build a 3D Application with interaction
What if we want to touch the world of 3D and leverage the power of WebGL with Three.js?
Probably we want to use it together with React. The common pattern of starting anything with React is to type “react + anything” into a Google to find some wrappers. But that’s not the case with Three.js. Let’s find out why.
React wrappers for Three.js have 2 issues:
- They could easily become stale at some moment of time: for example, 2 most popular React wrappers by date (react-three and react-three-renderer) are outdated and only work with React 15
- They don’t use plain Three.js code: you should translate it into declarative React components that might sound like a good idea in general but not for our case because you can’t just copy-paste the code from StackOverflow or Three.js examples that match your use case.
So, let’s try to avoid above-mentioned downsides and start the React integration with pure Three.js without any additional npm packages. I will try to use as little code as possible to keep things short and simple.
Stage 1: Import Three.js into the app
import React, { Component } from "react";
import ReactDOM from "react-dom";
import * as THREE from "three";
class App extends Component {
render() {
return (
)
}
}
const rootElement = document.getElementById("root");
ReactDOM.render(, rootElement);
We have just imported the Three.js npm package that is named “three” but have nothing to show except for a blank page. Stand by.
Step 2: Copy-paste pure Three.js code into componentDidMount method
import React, { Component } from "react";
import ReactDOM from "react-dom";
import * as THREE from "three";
class App extends Component {
componentDidMount() {
// === THREE.JS CODE START ===
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var geometry = new THREE.BoxGeometry( 1, 1, 1 );
var material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
var cube = new THREE.Mesh( geometry, material );
scene.add( cube );
camera.position.z = 5;
var animate = function () {
requestAnimationFrame( animate );
cube.rotation.x += 0.01;
cube.rotation.y += 0.01;
renderer.render( scene, camera );
};
animate();
// === THREE.JS EXAMPLE CODE END ===
}
render() {
return (
)
}
}
const rootElement = document.getElementById("root");
ReactDOM.render(, rootElement);
Voila! At this stage we already have a green cube on the screen:
360-degree rotation cube: Click here for a live demo
The magic here is just a copy-paste of Three.js sample code from an official “Creating a scene” tutorial script without any modifications into a componentDidMount() method of the App Component.
It looks great but if we check the page markup it becomes obvious that the canvas is actually mounted at the document body and not inside of React. That happens because of the document.body.appendChild( renderer.domElement ) line in the example code. Let’s fix that.
Step 3: Add a ref to tell where Three.js should mount the scene
import React, { Component } from "react";
import ReactDOM from "react-dom";
import * as THREE from "three";
class App extends Component {
componentDidMount() {
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
// document.body.appendChild( renderer.domElement );
// use ref as a mount point of the Three.js scene instead of the document.body
this.mount.appendChild( renderer.domElement );
var geometry = new THREE.BoxGeometry( 1, 1, 1 );
var material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
var cube = new THREE.Mesh( geometry, material );
scene.add( cube );
camera.position.z = 5;
var animate = function () {
requestAnimationFrame( animate );
cube.rotation.x += 0.01;
cube.rotation.y += 0.01;
renderer.render( scene, camera );
};
animate();
}
render() {
return (
(this.mount = ref)} />
)
}
}
const rootElement = document.getElementById("root");
ReactDOM.render(, rootElement);
We simply attach the Three.js renderer to the React Element utilizing a ref. If we check the page markup, we’ll see that Three.js canvas is inside of the React App so everything is fine now.
Here is a link to the final result
Code: https://codesandbox.io/s/81qjyxonm8
Live demo: https://81qjyxonm8.codesandbox.io/
Congratulations! We have successfully completed a basic Three.js integration that works with the latest React and allows to experiment with any plain Three.js example in 3 easy steps. I hope you enjoyed the post, stay tuned!
#reactjs #three-js #javascript
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1598839687
How native is React Native? | React Native vs Native App Development
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
A brief introduction to React Native
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.
Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
- Performance: It delivers optimal performance.
- Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
- UI design: React Native enables you to design simple and responsive UI for your mobile app.
- 3rd party plugins: This framework supports 3rd party plugins.
- Developer community: A vibrant community of developers support React Native.
Why React Native is fundamentally different from earlier hybrid frameworks
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
- Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
- Near-native user experience: React Native provides several native components, and these are platform agnostic.
- The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
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Hire ReactJS developers online on a monthly, hourly, or full-time basis who are highly skilled & efficient in implementing new technologies and turn into business-driven applications while saving your cost up to 60%.
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How to Select and Hire the Best React JS and React Native Developers?
Since March 2020 reached 556 million monthly downloads have increased, It shows that React JS has been steadily growing. React.js also provides a desirable amount of pliancy and efficiency for developing innovative solutions with interactive user interfaces. It’s no surprise that an increasing number of businesses are adopting this technology. How do you select and recruit React.js developers who will propel your project forward? How much does a React developer make? We’ll bring you here all the details you need.
What is React.js?
Facebook built and maintains React.js, an open-source JavaScript library for designing development tools. React.js is used to create single-page applications (SPAs) that can be used in conjunction with React Native to develop native cross-platform apps.
React vs React Native
- React Native is a platform that uses a collection of mobile-specific components provided by the React kit, while React.js is a JavaScript-based library.
- React.js and React Native have similar syntax and workflows, but their implementation is quite different.
- React Native is designed to create native mobile apps that are distinct from those created in Objective-C or Java. React, on the other hand, can be used to develop web apps, hybrid and mobile & desktop applications.
- React Native, in essence, takes the same conceptual UI cornerstones as standard iOS and Android apps and assembles them using React.js syntax to create a rich mobile experience.
What is the Average React Developer Salary?
In the United States, the average React developer salary is $94,205 a year, or $30-$48 per hour, This is one of the highest among JavaScript developers. The starting salary for junior React.js developers is $60,510 per year, rising to $112,480 for senior roles.
* React.js Developer Salary by Country
- United States- $120,000
- Canada - $110,000
- United Kingdom - $71,820
- The Netherlands $49,095
- Spain - $35,423.00
- France - $44,284
- Ukraine - $28,990
- India - $9,843
- Sweden - $55,173
- Singapore - $43,801
In context of software developer wage rates, the United States continues to lead. In high-tech cities like San Francisco and New York, average React developer salaries will hit $98K and $114per year, overall.
However, the need for React.js and React Native developer is outpacing local labour markets. As a result, many businesses have difficulty locating and recruiting them locally.
It’s no surprise that for US and European companies looking for professional and budget engineers, offshore regions like India are becoming especially interesting. This area has a large number of app development companies, a good rate with quality, and a good pool of React.js front-end developers.
As per Linkedin, the country’s IT industry employs over a million React specialists. Furthermore, for the same or less money than hiring a React.js programmer locally, you may recruit someone with much expertise and a broader technical stack.
How to Hire React.js Developers?
- Conduct thorough candidate research, including portfolios and areas of expertise.
- Before you sit down with your interviewing panel, do some homework.
- Examine the final outcome and hire the ideal candidate.
Why is React.js Popular?
React is a very strong framework. React.js makes use of a powerful synchronization method known as Virtual DOM, which compares the current page architecture to the expected page architecture and updates the appropriate components as long as the user input.
React is scalable. it utilises a single language, For server-client side, and mobile platform.
React is steady.React.js is completely adaptable, which means it seldom, if ever, updates the user interface. This enables legacy projects to be updated to the most new edition of React.js without having to change the codebase or make a few small changes.
React is adaptable. It can be conveniently paired with various state administrators (e.g., Redux, Flux, Alt or Reflux) and can be used to implement a number of architectural patterns.
Is there a market for React.js programmers?
The need for React.js developers is rising at an unparalleled rate. React.js is currently used by over one million websites around the world. React is used by Fortune 400+ businesses and popular companies such as Facebook, Twitter, Glassdoor and Cloudflare.
Final thoughts:
As you’ve seen, locating and Hire React js Developer and Hire React Native developer is a difficult challenge. You will have less challenges selecting the correct fit for your projects if you identify growing offshore locations (e.g. India) and take into consideration the details above.
If you want to make this process easier, You can visit our website for more, or else to write a email, we’ll help you to finding top rated React.js and React Native developers easier and with strives to create this operation
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Looking to hire top Reactjs developers at affordable prices? Our 5+ years of average experienced Reactjs developers comprise proficiency in delivering the most complex and challenging web apps.
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