Wednesday, June 12, 2024
ReactjsReactjs TutorialThreejs

Implementing Three.js within a React.js application

Implementing Three.js within a React.js application

Implementing Three.js within a React.js application involves integrating the 3D rendering capabilities of Three.js with the component structure of React. Here’s a step-by-step guide to help you set up a basic scene with Three.js in a React project:

Implementing Three.js within a React.js application
Implementing Three.js within a React.js application

For reactjs new comers, please check the below link:

1. Set Up Your React Project

If you haven’t already created a React application, you can start one using Create React App:

npx create-react-app my-threejs-project
cd my-threejs-project

2. Install Three.js

You need to add Three.js to your project:

npm install three

3. Create a Three.js Component

You can create a Three.js component that handles the setup of the scene, camera, and renderer. Here’s an example of how you might set it up:

import React, { useRef, useEffect } from 'react';
import * as THREE from 'three';

const Scene = () => {
    const mountRef = useRef(null);

    useEffect(() => {
        // Scene
        const scene = new THREE.Scene();
        scene.background = new THREE.Color(0xabcdef);

        // Camera
        const camera = new THREE.PerspectiveCamera(
            window.innerWidth / window.innerHeight, 
        camera.position.z = 5;

        // Renderer
        const renderer = new THREE.WebGLRenderer();
        renderer.setSize(window.innerWidth, window.innerHeight);

        // Adding a cube
        const geometry = new THREE.BoxGeometry();
        const material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
        const cube = new THREE.Mesh(geometry, material);

        // Animation loop
        const animate = () => {
            cube.rotation.x += 0.01;
            cube.rotation.y += 0.01;
            renderer.render(scene, camera);


        // Handle resizing
        const handleResize = () => {
            camera.aspect = window.innerWidth / window.innerHeight;
            renderer.setSize(window.innerWidth, window.innerHeight);

        window.addEventListener('resize', handleResize);

        return () => {
            window.removeEventListener('resize', handleResize);
    }, []);

    return <div ref={mountRef} />;

export default Scene;

4. Integrate the Three.js Component in Your App

Now, integrate this component into your React application by including it in your main App component:

import React from 'react';
import Scene from './Scene';

function App() {
  return (
    <div className="App">
      <Scene />

export default App;

5. Run Your Application

Start your application to see the Three.js scene:

npm start

This setup provides a basic Three.js scene with a rotating cube in a React application. You can extend this by adding more complex objects, lights, and shadows to create richer visual effects.



the authortherichpost
Hello to all. Welcome to Myself Ajay Malhotra and I am freelance full stack developer. I love coding. I know WordPress, Core php, Angularjs, Angular 14, Angular 15, Angular 16, Angular 17, Bootstrap 5, Nodejs, Laravel, Codeigniter, Shopify, Squarespace, jQuery, Google Map Api, Vuejs, Reactjs, Big commerce etc.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.