examples/css3d_panorama.html

<!DOCTYPE html>
<html>
	<head>
		<title>three.js css3d - panorama</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>
	<body>
		<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js css3d</a> - panorama demo. cubemap by <a href="http://www.humus.name/index.php?page=Textures" target="_blank" rel="noopener">Humus</a>.</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import { CSS3DRenderer, CSS3DObject } from './jsm/renderers/CSS3DRenderer.js';

			var camera, scene, renderer;
			var target = new THREE.Vector3();

			var lon = 90, lat = 0;
			var phi = 0, theta = 0;

			var touchX, touchY;

			init();
			animate();

			function init() {

				camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 1000 );

				scene = new THREE.Scene();

				var sides = [
					{
						url: 'textures/cube/Bridge2/posx.jpg',
						position: [ - 512, 0, 0 ],
						rotation: [ 0, Math.PI / 2, 0 ]
					},
					{
						url: 'textures/cube/Bridge2/negx.jpg',
						position: [ 512, 0, 0 ],
						rotation: [ 0, - Math.PI / 2, 0 ]
					},
					{
						url: 'textures/cube/Bridge2/posy.jpg',
						position: [ 0, 512, 0 ],
						rotation: [ Math.PI / 2, 0, Math.PI ]
					},
					{
						url: 'textures/cube/Bridge2/negy.jpg',
						position: [ 0, - 512, 0 ],
						rotation: [ - Math.PI / 2, 0, Math.PI ]
					},
					{
						url: 'textures/cube/Bridge2/posz.jpg',
						position: [ 0, 0, 512 ],
						rotation: [ 0, Math.PI, 0 ]
					},
					{
						url: 'textures/cube/Bridge2/negz.jpg',
						position: [ 0, 0, - 512 ],
						rotation: [ 0, 0, 0 ]
					}
				];

				for ( var i = 0; i < sides.length; i ++ ) {

					var side = sides[ i ];

					var element = document.createElement( 'img' );
					element.width = 1026; // 2 pixels extra to close the gap.
					element.src = side.url;

					var object = new CSS3DObject( element );
					object.position.fromArray( side.position );
					object.rotation.fromArray( side.rotation );
					scene.add( object );

				}

				renderer = new CSS3DRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				//

				document.addEventListener( 'mousedown', onDocumentMouseDown, false );
				document.addEventListener( 'wheel', onDocumentMouseWheel, false );

				document.addEventListener( 'touchstart', onDocumentTouchStart, false );
				document.addEventListener( 'touchmove', onDocumentTouchMove, false );

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

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function onDocumentMouseDown( event ) {

				event.preventDefault();

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'mouseup', onDocumentMouseUp, false );

			}

			function onDocumentMouseMove( event ) {

				var movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0;
				var movementY = event.movementY || event.mozMovementY || event.webkitMovementY || 0;

				lon -= movementX * 0.1;
				lat += movementY * 0.1;

			}

			function onDocumentMouseUp() {

				document.removeEventListener( 'mousemove', onDocumentMouseMove );
				document.removeEventListener( 'mouseup', onDocumentMouseUp );

			}

			function onDocumentMouseWheel( event ) {

				var fov = camera.fov + event.deltaY * 0.05;

				camera.fov = THREE.MathUtils.clamp( fov, 10, 75 );

				camera.updateProjectionMatrix();

			}

			function onDocumentTouchStart( event ) {

				event.preventDefault();

				var touch = event.touches[ 0 ];

				touchX = touch.screenX;
				touchY = touch.screenY;

			}

			function onDocumentTouchMove( event ) {

				event.preventDefault();

				var touch = event.touches[ 0 ];

				lon -= ( touch.screenX - touchX ) * 0.1;
				lat += ( touch.screenY - touchY ) * 0.1;

				touchX = touch.screenX;
				touchY = touch.screenY;

			}

			function animate() {

				requestAnimationFrame( animate );

				lon += 0.1;
				lat = Math.max( - 85, Math.min( 85, lat ) );
				phi = THREE.MathUtils.degToRad( 90 - lat );
				theta = THREE.MathUtils.degToRad( lon );

				target.x = Math.sin( phi ) * Math.cos( theta );
				target.y = Math.cos( phi );
				target.z = Math.sin( phi ) * Math.sin( theta );

				camera.lookAt( target );

				renderer.render( scene, camera );

			}

		</script>
	</body>
</html>