Make a Ring in React Using React Three Fiber

In this article, we will see how to use the react-three-fiber package in React to make a ring which will rotate. Three.js is a cross-browser JavaScript library and application programming interface used to create and display animated 3D computer graphics in a web browser using WebGL

Example

First, download important libraries −

npm i --save @react-three/fiber three

threejs and react-three/fiber will be used to add webGL renderer to the website.

Add the following lines of code in index.css −

* {
   box-sizing: border-box;
}

html,body,#root{
   width: 100%;
   height: 100%;
   margin: 0;
   padding: 0;
}

This default styling will make the Canvas match the parent.

Add the following lines of code in App.js −

import React, { useRef } from "react";
import { Canvas, useFrame } from "@react-three/fiber";

function Ring() {
   const ref = useRef(null);
   useFrame(() => (ref.current.rotation.x = ref.current.rotation.y += 0.01));

   return (
      <mesh
         visible
         position={[0, 0, 0]}
         rotation={[0, 0, 0]}
         castShadow
         ref={ref}>
            <ringBufferGeometry args={[1, 4, 32]} />
            <meshBasicMaterial attach="material" color="hotpink" />
      </mesh>
   );
}
export default function App() {
   return (
      <Canvas>
         <ambientLight />
         <Ring />
      </Canvas>
   );
}

Explanation

Ring takes 3 arguments − inner radius, outer radius and the third parameter is the theta segment which decides how round will be the ring.

• <mesh is used to make the threeJS object, and inside it, we made a box using RingGeometry which is used to define the size, shape and other structural things.

• We used the meshStandardMaterial to design our geometrical structure.

• <mesh is used to combine the structure and the design together. We created a functional component inside which we made a reference. Then we created a Frame which is used to change the position of our mesh object or ring.

• Then we added the frame to reference and gave reference to the mesh.

• We used the position argument to simply position the object.

• <AmbientLight> is used to make the color visible; in its absence, the <Ring> will look completely black.

Output

It will produce the following output −