JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.jsdelivr.net/npm/three@0.125/build/three.js"></script>

<video id="video" loop muted crossOrigin="anonymous" playsinline style="display:none">
			<source src="https://threejs.org/examples/textures/sintel.ogv" type='video/ogg; codecs="theora, vorbis"'>
			<source src="https://threejs.org/examples/textures/sintel.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'>
		</video>

CSS

body {
	  margin: 0;
}

JavaScript

var camera, scene, renderer;
var geometry, material, mesh;

init();
animate();

function init() {

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

    scene = new THREE.Scene();
		
		const loader = new THREE.TextureLoader();
		const texture = loader.load( 'https://threejs.org/examples/textures/uv_grid_opengl.jpg' );
		
		const video = document.getElementById( 'video' );
		const videoTexture = new THREE.VideoTexture( video );

    geometry = new THREE.PlaneGeometry();
    material = new THREE.MeshBasicMaterial( { map: texture } );
		
		setTimeout( function() {
		
			material.map = videoTexture;
			video.play();
		
		}, 2000 );

    mesh = new THREE.Mesh( geometry, material );
    scene.add( mesh );

    renderer = new THREE.WebGLRenderer( { antialias: true } );
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );

}

function animate() {

    requestAnimationFrame( animate );
    renderer.render( scene, camera );

}