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webgl_materials_variations_physical.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - materials</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">
</head>
<body>
<div id="container"></div>
<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Physical Material Variations by <a href="http://clara.io/" target="_blank" rel="noopener">Ben Houston</a>.<br/><br/>
Note: Every second sphere has an IBL environment map on it.</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/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';
import Stats from 'three/addons/libs/stats.module.js';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
import { FontLoader } from 'three/addons/loaders/FontLoader.js';
import { TextGeometry } from 'three/addons/geometries/TextGeometry.js';
let container, stats;
let camera, scene, renderer;
let particleLight;
const loader = new FontLoader();
loader.load( 'fonts/gentilis_regular.typeface.json', function ( font ) {
init( font );
animate();
} );
function init( font ) {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2500 );
camera.position.set( 0.0, 400, 400 * 3.5 );
//
scene = new THREE.Scene();
new RGBELoader()
.setPath( 'textures/equirectangular/' )
.load( 'pedestrian_overpass_1k.hdr', function ( texture ) {
texture.mapping = THREE.EquirectangularReflectionMapping;
// Materials
const cubeWidth = 400;
const numberOfSphersPerSide = 5;
const sphereRadius = ( cubeWidth / numberOfSphersPerSide ) * 0.8 * 0.5;
const stepSize = 1.0 / numberOfSphersPerSide;
const geometry = new THREE.SphereGeometry( sphereRadius, 32, 16 );
let index = 0;
for ( let alpha = 0; alpha <= 1.0; alpha += stepSize ) {
for ( let beta = 0; beta <= 1.0; beta += stepSize ) {
for ( let gamma = 0; gamma <= 1.0; gamma += stepSize ) {
const diffuseColor = new THREE.Color().setHSL( alpha, 0.5, 0.25 );
const material = new THREE.MeshPhysicalMaterial( {
color: diffuseColor,
metalness: 0,
roughness: 0.5,
clearcoat: 1.0 - alpha,
clearcoatRoughness: 1.0 - beta,
reflectivity: 1.0 - gamma,
envMap: ( index % 2 ) == 1 ? texture : null
} );
index ++;
const mesh = new THREE.Mesh( geometry, material );
mesh.position.x = alpha * 400 - 200;
mesh.position.y = beta * 400 - 200;
mesh.position.z = gamma * 400 - 200;
scene.add( mesh );
}
index ++;
}
index ++;
}
scene.background = texture;
} );
function addLabel( name, location ) {
const textGeo = new TextGeometry( name, {
font: font,
size: 20,
height: 1,
curveSegments: 1
} );
const textMaterial = new THREE.MeshBasicMaterial( { color: 0xffffff } );
const textMesh = new THREE.Mesh( textGeo, textMaterial );
textMesh.position.copy( location );
scene.add( textMesh );
}
addLabel( '+clearcoat', new THREE.Vector3( - 350, 0, 0 ) );
addLabel( '-clearcoat', new THREE.Vector3( 350, 0, 0 ) );
addLabel( '+clearcoatRoughness', new THREE.Vector3( 0, - 300, 0 ) );
addLabel( '-clearcoatRoughness', new THREE.Vector3( 0, 300, 0 ) );
addLabel( '+reflectivity', new THREE.Vector3( 0, 0, - 300 ) );
addLabel( '-reflectivity', new THREE.Vector3( 0, 0, 300 ) );
particleLight = new THREE.Mesh( new THREE.SphereGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xffffff } ) );
scene.add( particleLight );
// Lights
scene.add( new THREE.AmbientLight( 0x222222 ) );
const directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );
directionalLight.position.set( 1, 1, 1 ).normalize();
scene.add( directionalLight );
const pointLight = new THREE.PointLight( 0xffffff, 2, 800 );
particleLight.add( pointLight );
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 0.75;
//
stats = new Stats();
container.appendChild( stats.dom );
const controls = new OrbitControls( camera, renderer.domElement );
controls.minDistance = 200;
controls.maxDistance = 2000;
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
const timer = Date.now() * 0.00025;
//camera.position.x = Math.cos( timer ) * 800;
//camera.position.z = Math.sin( timer ) * 800;
camera.lookAt( scene.position );
particleLight.position.x = Math.sin( timer * 7 ) * 300;
particleLight.position.y = Math.cos( timer * 5 ) * 400;
particleLight.position.z = Math.cos( timer * 3 ) * 300;
renderer.render( scene, camera );
}
</script>
</body>
</html>