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174 lines
4.1 KiB
174 lines
4.1 KiB
3 years ago
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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 - scene - multiple - compare</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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<style>
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.container {
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position: absolute;
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width: 100%;
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height: 100%;
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}
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.slider {
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position: absolute;
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cursor: ew-resize;
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width: 40px;
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height: 40px;
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background-color: #F32196;
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opacity: 0.7;
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border-radius: 50%;
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top: calc(50% - 20px);
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left: calc(50% - 20px);
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}
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</style>
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - multiple scenes comparison<br />
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</div>
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<div class="container">
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<div class="slider"></div>
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</div>
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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/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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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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<script type="module">
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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let container, camera, renderer, controls;
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let sceneL, sceneR;
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let sliderPos = window.innerWidth / 2;
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init();
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function init() {
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container = document.querySelector( '.container' );
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sceneL = new THREE.Scene();
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sceneL.background = new THREE.Color( 0xBCD48F );
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sceneR = new THREE.Scene();
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sceneR.background = new THREE.Color( 0x8FBCD4 );
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camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 0.1, 100 );
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camera.position.z = 6;
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controls = new OrbitControls( camera, container );
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const light = new THREE.HemisphereLight( 0xffffff, 0x444444, 1 );
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light.position.set( - 2, 2, 2 );
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sceneL.add( light.clone() );
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sceneR.add( light.clone() );
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initMeshes();
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initSlider();
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setScissorTest( true );
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renderer.setAnimationLoop( render );
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container.appendChild( renderer.domElement );
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window.addEventListener( 'resize', onWindowResize );
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}
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function initMeshes() {
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const geometry = new THREE.IcosahedronGeometry( 1, 3 );
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const meshL = new THREE.Mesh( geometry, new THREE.MeshStandardMaterial() );
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sceneL.add( meshL );
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const meshR = new THREE.Mesh( geometry, new THREE.MeshStandardMaterial( { wireframe: true } ) );
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sceneR.add( meshR );
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}
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function initSlider() {
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const slider = document.querySelector( '.slider' );
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function onPointerDown() {
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if ( event.isPrimary === false ) return;
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controls.enabled = false;
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window.addEventListener( 'pointermove', onPointerMove );
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window.addEventListener( 'pointerup', onPointerUp );
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}
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function onPointerUp() {
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controls.enabled = true;
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window.removeEventListener( 'pointermove', onPointerMove );
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window.removeEventListener( 'pointerup', onPointerUp );
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}
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function onPointerMove( e ) {
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if ( event.isPrimary === false ) return;
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sliderPos = Math.max( 0, Math.min( window.innerWidth, e.pageX ) );
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slider.style.left = sliderPos - ( slider.offsetWidth / 2 ) + 'px';
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}
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slider.style.touchAction = 'none'; // disable touch scroll
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slider.addEventListener( 'pointerdown', onPointerDown );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function render() {
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renderer.setScissor( 0, 0, sliderPos, window.innerHeight );
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renderer.render( sceneL, camera );
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renderer.setScissor( sliderPos, 0, window.innerWidth, window.innerHeight );
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renderer.render( sceneR, camera );
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}
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</script>
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</body>
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</html>
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