基于three.js的全景

时间:2022-06-01 20:54:01

直接上代码:

<!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">
<style>
body {
background-color: #000000;
margin: 0;
cursor: move;
overflow: hidden;
}

a {
color: #ffffff;
}

#info {
position: absolute;
width: 100%;
color: #ffffff;
padding: 5px;
font-family: Monospace;
font-size: 13px;
font-weight: bold;
text-align: center;
z-index: 1;
}
</style>
</head>
<body>
<script src="../build/three.js"></script>
<script src="js/renderers/CSS3DRenderer.js"></script>
<script>

var camera, scene, renderer;
var geometry, material, mesh;
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 THREE.CSS3DObject( element );
object.position.fromArray( side.position );
object.rotation.fromArray( side.rotation );
scene.add( object );

}

renderer = new THREE.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( event ) {

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

}

function onDocumentMouseWheel( event ) {

camera.fov += event.deltaY * 0.05;
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.Math.degToRad( 90 - lat );
theta = THREE.Math.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>