main.js

let scene, camera, renderer, cube;

function init() {
    
    scene = new THREE.Scene();
     
    camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
    
    renderer = new THREE.WebGLRenderer({antialias: true});
    
    renderer.setSize(window.innerWidth, window.innerHeight);
    
    document.body.appendChild(renderer.domElement);
    
    const geometry = new THREE.BoxGeometry( 2, 2, 2);
    const texture = new THREE.TextureLoader().load('./texture.jpg');
    const material = new THREE.MeshBasicMaterial({ map: texture });

    cube = new THREE.Mesh(geometry, material);
    scene.add(cube);
    
    camera.position.z = 5;

}



function animate() {

    requestAnimationFrame(animate);
    cube.rotation.x += 0.1;
    cube.rotation.y += 0.1;

    renderer.render( scene, camera);
}


function onWindowResize() {
    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();
    renderer.setSize(window.innerWidth, window.innerHeight);
}

window.addEventListener('resize', onWindowResize, false);

init();
animate();