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webgl_panorama_equirectangular.html
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webgl_panorama_equirectangular.html
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<!DOCTYPE HTML>
<html lang="en">
<head>
<title>three.js webgl - equirectangular panorama demo</title>
<meta charset="utf-8">
<style type="text/css">
body {
background-color: #000000;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
color: #ffffff;
padding: 5px;
font-family:Monospace;
font-size:13px;
font-weight: bold;
text-align:center;
}
a {
color: #ffffff;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js webgl</a> - equirectangular panorama demo. photo by <a href="http://www.flickr.com/photos/jonragnarsson/2294472375/" target="_blank">Jón Ragnarsson</a>.</div>
<script type="text/javascript" src="../build/Three.js"></script>
<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
<script type="text/javascript">
var camera, scene, renderer;
var fov = 70,
texture_placeholder,
isUserInteracting = false,
onMouseDownMouseX = 0, onMouseDownMouseY = 0,
lon = 0, onMouseDownLon = 0,
lat = 0, onMouseDownLat = 0,
phi = 0, theta = 0;
init();
animate();
function init() {
var container, mesh;
container = document.getElementById( 'container' );
camera = new THREE.Camera( fov, window.innerWidth / window.innerHeight, 1, 1100 );
scene = new THREE.Scene();
mesh = new THREE.Mesh( new THREE.Sphere( 500, 60, 40 ), new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'textures/2294472375_24a3b8ef46_o.jpg' ) } ) );
mesh.scale.x = -1;
scene.addObject( mesh );
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mousewheel', onDocumentMouseWheel, false );
document.addEventListener( 'DOMMouseScroll', onDocumentMouseWheel, false);
}
function onDocumentMouseDown( event ) {
event.preventDefault();
isUserInteracting = true;
onPointerDownPointerX = event.clientX;
onPointerDownPointerY = event.clientY;
onPointerDownLon = lon;
onPointerDownLat = lat;
}
function onDocumentMouseMove( event ) {
if ( isUserInteracting ) {
lon = ( onPointerDownPointerX - event.clientX ) * 0.1 + onPointerDownLon;
lat = ( event.clientY - onPointerDownPointerY ) * 0.1 + onPointerDownLat;
}
}
function onDocumentMouseUp( event ) {
isUserInteracting = false;
}
function onDocumentMouseWheel( event ) {
// WebKit
if ( event.wheelDeltaY ) {
fov -= event.wheelDeltaY * 0.05;
// Opera / Explorer 9
} else if ( event.wheelDelta ) {
fov -= event.wheelDelta * 0.05;
// Firefox
} else if ( event.detail ) {
fov += event.detail * 1.0;
}
camera.projectionMatrix = THREE.Matrix4.makePerspective( fov, window.innerWidth / window.innerHeight, 1, 1100 );
render();
}
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
lat = Math.max( - 85, Math.min( 85, lat ) );
phi = ( 90 - lat ) * Math.PI / 180;
theta = lon * Math.PI / 180;
camera.target.position.x = 500 * Math.sin( phi ) * Math.cos( theta );
camera.target.position.y = 500 * Math.cos( phi );
camera.target.position.z = 500 * Math.sin( phi ) * Math.sin( theta );
/*
// distortion
camera.position.x = - camera.target.position.x;
camera.position.y = - camera.target.position.y;
camera.position.z = - camera.target.position.z;
*/
renderer.render( scene, camera );
}
</script>
</body>
</html>