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webgl_nodes_loader_gltf_iridescence.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - GLTFloader + Iridescence + Nodes</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="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - GLTFLoader + <a href="https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_iridescence" target="_blank" rel="noopener">KHR_materials_iridescence</a> + Nodes<br />
Iridescence Lamp from <a href="https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/IridescenceLamp" target="_blank" rel="noopener">glTF-Sample-Models</a><br />
<a href="https://hdrihaven.com/hdri/?h=venice_sunset" target="_blank" rel="noopener">Venice Sunset</a> by <a href="https://hdrihaven.com/" target="_blank" rel="noopener">HDRI Haven</a>
</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/",
"three/nodes": "./jsm/nodes/Nodes.js"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { NodeMaterial, uv, add, mul, vec2, checker, float, timerLocal } from 'three/nodes';
import { nodeFrame } from 'three/addons/renderers/webgl/nodes/WebGLNodes.js';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
let renderer, scene, camera, controls;
init().catch( function ( err ) {
console.error( err );
} );
async function init() {
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.setAnimationLoop( render );
document.body.appendChild( renderer.domElement );
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.25, 20 );
camera.position.set( 0.35, 0.05, 0.35 );
controls = new OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'change', render );
controls.target.set( 0, 0.2, 0 );
controls.update();
const rgbeLoader = new RGBELoader()
.setPath( 'textures/equirectangular/' );
const gltfLoader = new GLTFLoader().setPath( 'models/gltf/' );
const [ texture, gltf ] = await Promise.all( [
rgbeLoader.loadAsync( 'venice_sunset_1k.hdr' ),
gltfLoader.loadAsync( 'IridescenceLamp.glb' ),
] );
// nodes
gltf.scene.traverse( mesh => {
const material = mesh.material;
if ( material && material.iridescence > 0 ) {
const iridescenceFactorNode = checker( mul( add( uv(), vec2( timerLocal( - .05 ), 0 ) ), 20 ) );
const nodeMaterial = NodeMaterial.fromMaterial( material );
nodeMaterial.iridescenceNode = iridescenceFactorNode;
nodeMaterial.iridescenceIORNode = float( 1.3 );
nodeMaterial.iridescenceThicknessNode = float( 400 );
mesh.material = nodeMaterial;
}
} );
// environment
texture.mapping = THREE.EquirectangularReflectionMapping;
scene.background = texture;
scene.environment = texture;
// model
scene.add( gltf.scene );
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function render() {
nodeFrame.update();
renderer.render( scene, camera );
}
</script>
</body>
</html>