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260 lines
5.8 KiB
260 lines
5.8 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>threejs webgl - materials - transmission</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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<div id="container"></div>
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<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">threejs</a> - Transmission</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 { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
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const params = {
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color: 0xffffff,
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transmission: 1,
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opacity: 1,
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metalness: 0,
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roughness: 0,
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ior: 1.5,
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thickness: 0.01,
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specularIntensity: 1,
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specularColor: 0xffffff,
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envMapIntensity: 1,
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lightIntensity: 1,
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exposure: 1
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};
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let camera, scene, renderer;
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let mesh;
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const hdrEquirect = new RGBELoader()
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.setPath( 'textures/equirectangular/' )
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.load( 'royal_esplanade_1k.hdr', function () {
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hdrEquirect.mapping = THREE.EquirectangularReflectionMapping;
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init();
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render();
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} );
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function init() {
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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.shadowMap.enabled = true;
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document.body.appendChild( renderer.domElement );
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renderer.toneMapping = THREE.ACESFilmicToneMapping;
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renderer.toneMappingExposure = params.exposure;
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renderer.outputEncoding = THREE.sRGBEncoding;
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scene = new THREE.Scene();
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camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2000 );
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camera.position.set( 0, 0, 120 );
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//
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scene.background = hdrEquirect;
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//
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const geometry = new THREE.SphereGeometry( 20, 64, 32 );
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const texture = new THREE.CanvasTexture( generateTexture() );
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texture.magFilter = THREE.NearestFilter;
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texture.wrapT = THREE.RepeatWrapping;
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texture.wrapS = THREE.RepeatWrapping;
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texture.repeat.set( 1, 3.5 );
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const material = new THREE.MeshPhysicalMaterial( {
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color: params.color,
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metalness: params.metalness,
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roughness: params.roughness,
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ior: params.ior,
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alphaMap: texture,
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envMap: hdrEquirect,
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envMapIntensity: params.envMapIntensity,
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transmission: params.transmission, // use material.transmission for glass materials
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specularIntensity: params.specularIntensity,
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specularColor: params.specularColor,
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opacity: params.opacity,
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side: THREE.DoubleSide,
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transparent: true
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} );
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mesh = new THREE.Mesh( geometry, material );
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scene.add( mesh );
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//
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const controls = new OrbitControls( camera, renderer.domElement );
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controls.addEventListener( 'change', render ); // use if there is no animation loop
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controls.minDistance = 10;
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controls.maxDistance = 150;
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window.addEventListener( 'resize', onWindowResize );
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//
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const gui = new GUI();
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gui.addColor( params, 'color' )
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.onChange( function () {
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material.color.set( params.color );
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render();
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} );
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gui.add( params, 'transmission', 0, 1, 0.01 )
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.onChange( function () {
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material.transmission = params.transmission;
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render();
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} );
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gui.add( params, 'opacity', 0, 1, 0.01 )
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.onChange( function () {
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material.opacity = params.opacity;
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render();
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} );
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gui.add( params, 'metalness', 0, 1, 0.01 )
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.onChange( function () {
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material.metalness = params.metalness;
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render();
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} );
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gui.add( params, 'roughness', 0, 1, 0.01 )
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.onChange( function () {
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material.roughness = params.roughness;
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render();
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} );
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gui.add( params, 'ior', 1, 2, 0.01 )
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.onChange( function () {
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material.ior = params.ior;
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render();
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} );
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gui.add( params, 'thickness', 0, 5, 0.01 )
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.onChange( function () {
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material.thickness = params.thickness;
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render();
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} );
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gui.add( params, 'specularIntensity', 0, 1, 0.01 )
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.onChange( function () {
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material.specularIntensity = params.specularIntensity;
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render();
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} );
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gui.addColor( params, 'specularColor' )
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.onChange( function () {
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material.specularColor.set( params.specularColor );
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render();
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} );
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gui.add( params, 'envMapIntensity', 0, 1, 0.01 )
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.name( 'envMap intensity' )
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.onChange( function () {
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material.envMapIntensity = params.envMapIntensity;
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render();
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} );
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gui.add( params, 'exposure', 0, 1, 0.01 )
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.onChange( function () {
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renderer.toneMappingExposure = params.exposure;
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render();
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} );
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gui.open();
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}
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function onWindowResize() {
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const width = window.innerWidth;
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const height = window.innerHeight;
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camera.aspect = width / height;
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camera.updateProjectionMatrix();
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renderer.setSize( width, height );
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render();
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}
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//
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function generateTexture() {
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const canvas = document.createElement( 'canvas' );
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canvas.width = 2;
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canvas.height = 2;
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const context = canvas.getContext( '2d' );
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context.fillStyle = 'white';
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context.fillRect( 0, 1, 2, 1 );
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return canvas;
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}
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function render() {
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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