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@@ -1,198 +0,0 @@
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-<!DOCTYPE html>
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-<html lang="en">
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- <head>
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- <title>three.js webgl - lines - spheres</title>
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- <meta charset="utf-8">
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- <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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- <link type="text/css" rel="stylesheet" href="main.css">
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- </head>
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- <body>
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-
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- <div id="info">
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- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - lines WebGL demo
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- </div>
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-
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- <!-- Import maps polyfill -->
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- <!-- Remove this when import maps will be widely supported -->
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- <script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
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-
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- <script type="importmap">
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- {
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- "imports": {
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- "three": "../build/three.module.js",
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- "three/addons/": "./jsm/"
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- }
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- }
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- </script>
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-
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- <script type="module">
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-
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- import * as THREE from 'three';
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-
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- const SCREEN_WIDTH = window.innerWidth,
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- SCREEN_HEIGHT = window.innerHeight,
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-
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- r = 450;
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-
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- let mouseY = 0,
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-
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- windowHalfY = window.innerHeight / 2,
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-
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- camera, scene, renderer;
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-
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- init();
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- animate();
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-
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- function init() {
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-
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- camera = new THREE.PerspectiveCamera( 80, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 3000 );
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- camera.position.z = 1000;
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-
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- scene = new THREE.Scene();
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-
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- const parameters = [[ 0.25, 0xff7700, 1 ], [ 0.5, 0xff9900, 1 ], [ 0.75, 0xffaa00, 0.75 ], [ 1, 0xffaa00, 0.5 ], [ 1.25, 0x000833, 0.8 ],
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- [ 3.0, 0xaaaaaa, 0.75 ], [ 3.5, 0xffffff, 0.5 ], [ 4.5, 0xffffff, 0.25 ], [ 5.5, 0xffffff, 0.125 ]];
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-
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- const geometry = createGeometry();
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-
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- for ( let i = 0; i < parameters.length; ++ i ) {
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-
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- const p = parameters[ i ];
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-
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- const material = new THREE.LineBasicMaterial( { color: p[ 1 ], opacity: p[ 2 ] } );
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-
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- const line = new THREE.LineSegments( geometry, material );
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- line.scale.x = line.scale.y = line.scale.z = p[ 0 ];
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- line.userData.originalScale = p[ 0 ];
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- line.rotation.y = Math.random() * Math.PI;
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- line.updateMatrix();
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- scene.add( line );
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-
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- }
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-
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- renderer = new THREE.WebGLRenderer( { antialias: true } );
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- renderer.setPixelRatio( window.devicePixelRatio );
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- renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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- document.body.appendChild( renderer.domElement );
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-
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- document.body.style.touchAction = 'none';
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- document.body.addEventListener( 'pointermove', onPointerMove );
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-
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- //
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-
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- window.addEventListener( 'resize', onWindowResize );
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-
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- // test geometry swapability
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-
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- setInterval( function () {
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-
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- const geometry = createGeometry();
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-
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- scene.traverse( function ( object ) {
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-
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- if ( object.isLine ) {
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-
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- object.geometry.dispose();
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- object.geometry = geometry;
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-
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- }
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-
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- } );
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-
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- }, 1000 );
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-
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- }
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-
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- function createGeometry() {
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-
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- const geometry = new THREE.BufferGeometry();
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- const vertices = [];
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-
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- const vertex = new THREE.Vector3();
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-
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- for ( let i = 0; i < 1500; i ++ ) {
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-
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- vertex.x = Math.random() * 2 - 1;
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- vertex.y = Math.random() * 2 - 1;
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- vertex.z = Math.random() * 2 - 1;
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- vertex.normalize();
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- vertex.multiplyScalar( r );
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-
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- vertices.push( vertex.x, vertex.y, vertex.z );
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-
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- vertex.multiplyScalar( Math.random() * 0.09 + 1 );
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-
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- vertices.push( vertex.x, vertex.y, vertex.z );
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-
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- }
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-
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- geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( vertices, 3 ) );
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-
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- return geometry;
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-
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- }
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-
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- function onWindowResize() {
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-
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- windowHalfY = window.innerHeight / 2;
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-
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- camera.aspect = window.innerWidth / window.innerHeight;
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- camera.updateProjectionMatrix();
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-
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- renderer.setSize( window.innerWidth, window.innerHeight );
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-
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- }
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-
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- function onPointerMove( event ) {
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-
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- if ( event.isPrimary === false ) return;
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-
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- mouseY = event.clientY - windowHalfY;
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-
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- }
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-
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- //
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-
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- function animate() {
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-
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- requestAnimationFrame( animate );
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-
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- render();
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-
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- }
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-
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- function render() {
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-
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- camera.position.y += ( - mouseY + 200 - camera.position.y ) * .05;
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- camera.lookAt( scene.position );
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-
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- renderer.render( scene, camera );
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-
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- const time = Date.now() * 0.0001;
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-
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- for ( let i = 0; i < scene.children.length; i ++ ) {
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-
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- const object = scene.children[ i ];
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-
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- if ( object.isLine ) {
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-
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- object.rotation.y = time * ( i < 4 ? ( i + 1 ) : - ( i + 1 ) );
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-
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- if ( i < 5 ) {
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-
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- const scale = object.userData.originalScale * ( i / 5 + 1 ) * ( 1 + 0.5 * Math.sin( 7 * time ) );
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-
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- object.scale.x = object.scale.y = object.scale.z = scale;
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-
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- }
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-
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- }
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-
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- }
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-
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- }
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-
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-
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- </script>
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- </body>
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-</html>
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Mr.doob
