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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>threejs webgl - materials - transmission - alpha</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: #888888;
- }
- #table {
- margin-top: 100px;
- border-collapse: collapse;
- width: 100%;
- }
- #table td {
- margin: 0;
- padding: 0;
- font-size: 16px;
- text-align: center;
- vertical-align: center;
- }
- #table tr {
- height: 250px;
- }
- #block-ff0000 { background-color: #ff0000; color: white; }
- #block-00ff00 { background-color: #00ff00; color: black; }
- #block-0000ff { background-color: #0000ff; color: white; }
- #block-000000 { background-color: #000000; color: black; }
- </style>
- </head>
- <body>
- <table id="table">
- <tbody>
- <tr>
- <td id="block-ff0000">ff0000</td>
- <td id="block-00ff00">00ff00</td>
- <td id="block-0000ff">0000ff</td>
- <td id="block-000000">000000</td>
- </tr>
- </tbody>
- </table>
- <div id="container"></div>
- <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">threejs</a> - transmission - alpha</div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
- import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
- const params = {
- color: 0xffffff,
- transmission: 1,
- opacity: 1,
- metalness: 0,
- roughness: 0,
- ior: 1.5,
- thickness: 0.01,
- attenuationColor: 0xffffff,
- attenuationDistance: 1,
- specularIntensity: 1,
- specularColor: 0xffffff,
- envMapIntensity: 1,
- lightIntensity: 1,
- exposure: 1
- };
- let camera, scene, renderer;
- let mesh, material;
- const hdrEquirect = new RGBELoader()
- .setPath( 'textures/equirectangular/' )
- .load( 'royal_esplanade_1k.hdr', function () {
- hdrEquirect.mapping = THREE.EquirectangularReflectionMapping;
- new GLTFLoader()
- .setPath( 'models/gltf/' )
- .load( 'DragonAttenuation.glb', function ( gltf ) {
- gltf.scene.traverse( function ( child ) {
- if ( child.isMesh && child.material.isMeshPhysicalMaterial ) {
- mesh = child;
- material = mesh.material;
- const color = new THREE.Color();
- params.color = color.copy( mesh.material.color ).getHex();
- params.roughness = mesh.material.roughness;
- params.metalness = mesh.material.metalness;
- params.ior = mesh.material.ior;
- params.specularIntensity = mesh.material.specularIntensity;
- params.transmission = mesh.material.transmission;
- params.thickness = mesh.material.thickness;
- params.attenuationColor = color.copy( mesh.material.attenuationColor ).getHex();
- params.attenuationDistance = mesh.material.attenuationDistance;
- }
- } );
- init();
- scene.add( gltf.scene );
- scene.environment = hdrEquirect;
- //scene.background = hdrEquirect;
- render();
- } );
- } );
- function init() {
- renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.shadowMap.enabled = true;
- document.body.appendChild( renderer.domElement );
- renderer.toneMapping = THREE.ACESFilmicToneMapping;
- renderer.toneMappingExposure = params.exposure;
- // accommodate CSS table
- renderer.domElement.style.position = 'absolute';
- renderer.domElement.style.top = 0;
- scene = new THREE.Scene();
- camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2000 );
- camera.position.set( - 5, 0.5, 0 );
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.addEventListener( 'change', render ); // use if there is no animation loop
- controls.minDistance = 5;
- controls.maxDistance = 20;
- controls.target.y = 0.5;
- controls.update();
- window.addEventListener( 'resize', onWindowResize );
- //
- const gui = new GUI();
- gui.addColor( params, 'color' )
- .onChange( function () {
- material.color.set( params.color );
- render();
- } );
- gui.add( params, 'transmission', 0, 1, 0.01 )
- .onChange( function () {
- material.transmission = params.transmission;
- render();
- } );
- gui.add( params, 'opacity', 0, 1, 0.01 )
- .onChange( function () {
- material.opacity = params.opacity;
- const transparent = params.opacity < 1;
- if ( transparent !== material.transparent ) {
- material.transparent = transparent;
- material.needsUpdate = true;
- }
- render();
- } );
- gui.add( params, 'metalness', 0, 1, 0.01 )
- .onChange( function () {
- material.metalness = params.metalness;
- render();
- } );
- gui.add( params, 'roughness', 0, 1, 0.01 )
- .onChange( function () {
- material.roughness = params.roughness;
- render();
- } );
- gui.add( params, 'ior', 1, 2, 0.01 )
- .onChange( function () {
- material.ior = params.ior;
- render();
- } );
- gui.add( params, 'thickness', 0, 5, 0.01 )
- .onChange( function () {
- material.thickness = params.thickness;
- render();
- } );
- gui.addColor( params, 'attenuationColor' )
- .name( 'attenuation color' )
- .onChange( function () {
- material.attenuationColor.set( params.attenuationColor );
- render();
- } );
- gui.add( params, 'attenuationDistance', 0, 1, 0.01 )
- .onChange( function () {
- material.attenuationDistance = params.attenuationDistance;
- render();
- } );
- gui.add( params, 'specularIntensity', 0, 1, 0.01 )
- .onChange( function () {
- material.specularIntensity = params.specularIntensity;
- render();
- } );
- gui.addColor( params, 'specularColor' )
- .onChange( function () {
- material.specularColor.set( params.specularColor );
- render();
- } );
- gui.add( params, 'envMapIntensity', 0, 1, 0.01 )
- .name( 'envMap intensity' )
- .onChange( function () {
- material.envMapIntensity = params.envMapIntensity;
- render();
- } );
- gui.add( params, 'exposure', 0, 1, 0.01 )
- .onChange( function () {
- renderer.toneMappingExposure = params.exposure;
- render();
- } );
- gui.open();
- }
- function onWindowResize() {
- const width = window.innerWidth;
- const height = window.innerHeight;
- camera.aspect = width / height;
- camera.updateProjectionMatrix();
- renderer.setSize( width, height );
- render();
- }
- //
- function render() {
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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