JSFiddle - React, Tailwind, and code Playground

by Shakti Patel

HTML

<script src="https://threejs.org/build/three.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>

CSS

body {
	  margin: 0;
}

JavaScript

let camera, scene, renderer, clock, spotLight;

init();
animate();

function init() {

    camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 10 );
    camera.position.set( 0, 1, 1 );

    scene = new THREE.Scene();
		camera.lookAt( scene.position );
		
		clock = new THREE.Clock();
		
		//
		
    const geometry = new THREE.PlaneBufferGeometry();
    const material = new THREE.MeshStandardMaterial();

    const mesh = new THREE.Mesh( geometry, material );
		mesh.rotation.x = - Math.PI * 0.5;
    scene.add( mesh );
		
		//
		
		const ambientLight = new THREE.AmbientLight( 0xcccccc, 0.4 );
		scene.add( ambientLight );
		
		spotLight = new THREE.SpotLight( 0xcccccc, 0.6 );
		spotLight.position.set( 1, 1, 0 );
		scene.add( spotLight );
		scene.add( spotLight.target ); // add target to the scene
		
		//

    renderer = new THREE.WebGLRenderer( { antialias: true } );
		renderer.setPixelRatio( window.devicePixelRatio );
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );
		
		const controls = new THREE.OrbitControls( camera, renderer.domElement );

}

function animate() {

    requestAnimationFrame( animate );
		
		const time = clock.getElapsedTime();
		
		spotLight.target.position.x = Math.sin( time );
		spotLight.target.position.z = Math.cos( time );

		
    renderer.render( scene, camera );

}