You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
323 lines
8.4 KiB
323 lines
8.4 KiB
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js webgl - multiple canvases - circle</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">
|
|
<style>
|
|
body {
|
|
background-color: #555;
|
|
}
|
|
|
|
#container {
|
|
width: 100%;
|
|
height: 700px;
|
|
-webkit-perspective: 800px;
|
|
-webkit-perspective-origin: 50% 225px;
|
|
-moz-perspective: 800px;
|
|
-moz-perspective-origin: 50% 225px;
|
|
perspective: 800px;
|
|
perspective-origin: 50% 225px;
|
|
}
|
|
|
|
#stage {
|
|
width: 100%;
|
|
height: 100%;
|
|
-webkit-transform-style: preserve-3d;
|
|
-moz-transform-style: preserve-3d;
|
|
transform-style: preserve-3d;
|
|
}
|
|
|
|
#shape {
|
|
position: relative;
|
|
top: 160px;
|
|
margin: 0 auto;
|
|
height: 200px;
|
|
width: 200px;
|
|
-webkit-transform: translateZ(-0px);
|
|
-webkit-transform-style: preserve-3d;
|
|
-moz-transform: translateZ(-0px);
|
|
-moz-transform-style: preserve-3d;
|
|
transform: translateZ(-0px);
|
|
transform-style: preserve-3d;
|
|
}
|
|
|
|
.ring {
|
|
position: absolute;
|
|
display: block;
|
|
height: 300px;
|
|
width: 200px;
|
|
text-align: center;
|
|
font-family: Times, serif;
|
|
font-size: 124pt;
|
|
color: black;
|
|
background-color: #fff;
|
|
}
|
|
|
|
#shape {
|
|
border: 0px;
|
|
background-color: rgba(255, 255, 255, 0);
|
|
}
|
|
|
|
.ring > .r1 {
|
|
-webkit-transform: rotateY(300deg) translateZ(-380px);
|
|
-moz-transform: rotateY(300deg) translateZ(-380px);
|
|
transform: rotateY(300deg) translateZ(-380px);
|
|
}
|
|
|
|
.ring > .r2 {
|
|
-webkit-transform: rotateY(330deg) translateZ(-380px);
|
|
-moz-transform: rotateY(330deg) translateZ(-380px);
|
|
transform: rotateY(330deg) translateZ(-380px);
|
|
}
|
|
|
|
.ring > .r3 {
|
|
-webkit-transform: rotateY(0deg) translateZ(-380px);
|
|
-moz-transform: rotateY(0deg) translateZ(-380px);
|
|
transform: rotateY(0deg) translateZ(-380px);
|
|
}
|
|
|
|
.ring > .r4 {
|
|
-webkit-transform: rotateY(30deg) translateZ(-380px);
|
|
-moz-transform: rotateY(30deg) translateZ(-380px);
|
|
transform: rotateY(30deg) translateZ(-380px);
|
|
}
|
|
|
|
.ring > .r5 {
|
|
-webkit-transform: rotateY(60deg) translateZ(-380px);
|
|
-moz-transform: rotateY(60deg) translateZ(-380px);
|
|
transform: rotateY(60deg) translateZ(-380px);
|
|
}
|
|
|
|
#info {
|
|
position: absolute;
|
|
top: 0px; width: 100%;
|
|
padding: 5px;
|
|
}
|
|
|
|
#help {
|
|
position: absolute;
|
|
top: 50px; width: 100%;
|
|
text-align: center;
|
|
}
|
|
#help>div {
|
|
margin: auto;
|
|
padding: 1em;
|
|
background-color: rgba(0,0,0,0.3);
|
|
width: 50%;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
|
|
<div id="container">
|
|
<div id="stage">
|
|
<div id="shape" class="ring backfaces">
|
|
<canvas id="canvas1" class="ring r1"></canvas>
|
|
<canvas id="canvas2" class="ring r2"></canvas>
|
|
<canvas id="canvas3" class="ring r3"></canvas>
|
|
<canvas id="canvas4" class="ring r4"></canvas>
|
|
<canvas id="canvas5" class="ring r5"></canvas>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - multiple canvases - circle</div>
|
|
<div id="help" gstyle="display: none">
|
|
<div>
|
|
<a href="https://www.google.com/earth/explore/showcase/liquidgalaxy.html">Google's Liquid Galaxy</a> simulator.<br/>
|
|
Here 5 monitors are simulated using 3d css. WebGL is then rendered onto each one.
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Import maps polyfill -->
|
|
<!-- Remove this when import maps will be widely supported -->
|
|
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
|
|
|
|
<script type="importmap">
|
|
{
|
|
"imports": {
|
|
"three": "../build/three.module.js",
|
|
"three/addons/": "./jsm/"
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<script type="module">
|
|
import * as THREE from 'three';
|
|
|
|
const views = [];
|
|
|
|
let scene, renderer;
|
|
|
|
let mouseX = 0, mouseY = 0;
|
|
|
|
const windowHalfX = window.innerWidth / 2;
|
|
const windowHalfY = window.innerHeight / 2;
|
|
|
|
init();
|
|
animate();
|
|
|
|
//
|
|
|
|
function View( canvas, rotateY ) {
|
|
|
|
canvas.width = canvas.clientWidth * window.devicePixelRatio;
|
|
canvas.height = canvas.clientHeight * window.devicePixelRatio;
|
|
|
|
const context = canvas.getContext( '2d' );
|
|
|
|
const camera = new THREE.PerspectiveCamera( 20, canvas.clientWidth / canvas.clientHeight, 1, 20000 );
|
|
camera.rotation.y = rotateY;
|
|
|
|
// Think of the virtual camera as a post with 5 cameras on it (even though those cameras happen to live in difference scenes)
|
|
// You need to move the post (ie, the virtualCamera) to move all 5 cameras together.
|
|
|
|
const virtualCamera = new THREE.Camera();
|
|
virtualCamera.add( camera );
|
|
|
|
this.render = function () {
|
|
|
|
virtualCamera.position.x = - mouseX * 4;
|
|
virtualCamera.position.y = - mouseY * 4;
|
|
virtualCamera.position.z = 1800;
|
|
|
|
virtualCamera.lookAt( scene.position );
|
|
virtualCamera.updateMatrixWorld( true );
|
|
|
|
renderer.render( scene, camera );
|
|
|
|
context.drawImage( renderer.domElement, 0, 0 );
|
|
|
|
};
|
|
|
|
}
|
|
|
|
function init() {
|
|
|
|
const canvas1 = document.getElementById( 'canvas1' );
|
|
const canvas2 = document.getElementById( 'canvas2' );
|
|
const canvas3 = document.getElementById( 'canvas3' );
|
|
const canvas4 = document.getElementById( 'canvas4' );
|
|
const canvas5 = document.getElementById( 'canvas5' );
|
|
|
|
const fudge = 0.45; // I don't know why this is needed :-(
|
|
const rot = 30 * THREE.MathUtils.DEG2RAD;
|
|
|
|
views.push( new View( canvas1, rot * - 2 * fudge ) );
|
|
views.push( new View( canvas2, rot * - 1 * fudge ) );
|
|
views.push( new View( canvas3, rot * 0 * fudge ) );
|
|
views.push( new View( canvas4, rot * 1 * fudge ) );
|
|
views.push( new View( canvas5, rot * 2 * fudge ) );
|
|
|
|
//
|
|
|
|
scene = new THREE.Scene();
|
|
scene.background = new THREE.Color( 0xffffff );
|
|
|
|
const light = new THREE.DirectionalLight( 0xffffff );
|
|
light.position.set( 0, 0, 1 ).normalize();
|
|
scene.add( light );
|
|
|
|
const noof_balls = 51;
|
|
|
|
// shadow
|
|
|
|
const canvas = document.createElement( 'canvas' );
|
|
canvas.width = 128;
|
|
canvas.height = 128;
|
|
|
|
const context = canvas.getContext( '2d' );
|
|
const gradient = context.createRadialGradient( canvas.width / 2, canvas.height / 2, 0, canvas.width / 2, canvas.height / 2, canvas.width / 2 );
|
|
gradient.addColorStop( 0.1, 'rgba(210,210,210,1)' );
|
|
gradient.addColorStop( 1, 'rgba(255,255,255,1)' );
|
|
|
|
context.fillStyle = gradient;
|
|
context.fillRect( 0, 0, canvas.width, canvas.height );
|
|
|
|
const shadowTexture = new THREE.CanvasTexture( canvas );
|
|
|
|
const shadowMaterial = new THREE.MeshBasicMaterial( { map: shadowTexture } );
|
|
const shadowGeo = new THREE.PlaneGeometry( 300, 300, 1, 1 );
|
|
|
|
for ( let i = 0; i < noof_balls; i ++ ) { // create shadows
|
|
|
|
const shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
|
|
shadowMesh.position.x = - ( noof_balls - 1 ) / 2 * 400 + i * 400;
|
|
shadowMesh.position.y = - 250;
|
|
shadowMesh.rotation.x = - Math.PI / 2;
|
|
scene.add( shadowMesh );
|
|
|
|
}
|
|
|
|
const radius = 200;
|
|
|
|
const geometry1 = new THREE.IcosahedronGeometry( radius, 1 );
|
|
|
|
const count = geometry1.attributes.position.count;
|
|
geometry1.setAttribute( 'color', new THREE.BufferAttribute( new Float32Array( count * 3 ), 3 ) );
|
|
|
|
const color = new THREE.Color();
|
|
const positions = geometry1.attributes.position;
|
|
const colors = geometry1.attributes.color;
|
|
|
|
for ( let i = 0; i < count; i ++ ) {
|
|
|
|
color.setHSL( ( positions.getY( i ) / radius + 1 ) / 2, 1.0, 0.5 );
|
|
|
|
colors.setXYZ( i, color.r, color.g, color.b );
|
|
|
|
}
|
|
|
|
const material = new THREE.MeshPhongMaterial( {
|
|
color: 0xffffff,
|
|
flatShading: true,
|
|
vertexColors: true,
|
|
shininess: 0
|
|
} );
|
|
|
|
const wireframeMaterial = new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, transparent: true } );
|
|
|
|
for ( let i = 0; i < noof_balls; i ++ ) { // create balls
|
|
|
|
const mesh = new THREE.Mesh( geometry1, material );
|
|
const wireframe = new THREE.Mesh( geometry1, wireframeMaterial );
|
|
mesh.add( wireframe );
|
|
|
|
mesh.position.x = - ( noof_balls - 1 ) / 2 * 400 + i * 400;
|
|
mesh.rotation.x = i * 0.5;
|
|
scene.add( mesh );
|
|
|
|
}
|
|
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
|
renderer.setSize( 200, 300 );
|
|
|
|
document.addEventListener( 'mousemove', onDocumentMouseMove );
|
|
|
|
}
|
|
|
|
function onDocumentMouseMove( event ) {
|
|
|
|
mouseX = event.clientX - windowHalfX;
|
|
mouseY = event.clientY - windowHalfY;
|
|
|
|
}
|
|
|
|
function animate() {
|
|
|
|
for ( let i = 0; i < views.length; ++ i ) {
|
|
|
|
views[ i ].render();
|
|
|
|
}
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
}
|
|
|
|
</script>
|
|
</body>
|
|
</html>
|
|
|