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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 - GLTFloader + Iridescence + Nodes</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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+
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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> - 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 />
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+ 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 />
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+ <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>
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+ </div>
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+
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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/[email protected]/dist/es-module-shims.js"></script>
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+
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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-nodes/": "./jsm/nodes/"
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+ }
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+ }
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+ </script>
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+
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+ <script type="module">
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+
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+ import * as THREE from 'three';
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+
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+ import { NodeMaterial, uv, add, mul, vec2, checker, float, timerLocal } from 'three-nodes/Nodes.js';
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+
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+ import { nodeFrame } from './jsm/renderers/webgl/nodes/WebGLNodes.js';
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+
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+ import { OrbitControls } from './jsm/controls/OrbitControls.js';
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+ import { GLTFLoader } from './jsm/loaders/GLTFLoader.js';
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+ import { RGBELoader } from './jsm/loaders/RGBELoader.js';
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+
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+ let renderer, scene, camera, controls;
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+
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+ init().catch( function ( err ) {
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+
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+ console.error( err );
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+
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+ } );
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+
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+ async function init() {
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+
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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.outputEncoding = THREE.sRGBEncoding;
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+ renderer.toneMapping = THREE.ACESFilmicToneMapping;
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+ renderer.setAnimationLoop( render );
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+ document.body.appendChild( renderer.domElement );
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+
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+ scene = new THREE.Scene();
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+
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+ camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.25, 20 );
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+ camera.position.set( 0.35, 0.05, 0.35 );
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+
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+ controls = new OrbitControls( camera, renderer.domElement );
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+ controls.addEventListener( 'change', render );
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+ controls.target.set( 0, 0.2, 0 );
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+ controls.update();
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+
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+ const rgbeLoader = new RGBELoader()
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+ .setPath( 'textures/equirectangular/' );
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+
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+ const gltfLoader = new GLTFLoader().setPath( 'models/gltf/' );
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+
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+ const [ texture, gltf ] = await Promise.all( [
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+ rgbeLoader.loadAsync( 'venice_sunset_1k.hdr' ),
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+ gltfLoader.loadAsync( 'IridescenceLamp.glb' ),
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+ ] );
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+
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+ // nodes
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+
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+ gltf.scene.traverse( mesh => {
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+
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+ const material = mesh.material;
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+
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+ if ( material && material.iridescence > 0 ) {
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+
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+ const iridescenceFactorNode = checker( mul( add( uv(), vec2( timerLocal( - .05 ), 0 ) ), 20 ) );
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+
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+ const nodeMaterial = NodeMaterial.fromMaterial( material );
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+ nodeMaterial.iridescenceNode = iridescenceFactorNode;
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+ nodeMaterial.iridescenceIORNode = float( 1.3 );
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+ nodeMaterial.iridescenceThicknessNode = float( 400 );
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+
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+ mesh.material = nodeMaterial;
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+
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+ }
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+
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+ } );
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+
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+ // environment
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+
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+ texture.mapping = THREE.EquirectangularReflectionMapping;
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+
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+ scene.background = texture;
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+ scene.environment = texture;
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+
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+ // model
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+
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+ scene.add( gltf.scene );
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ }
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+
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+ function render() {
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+
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+ nodeFrame.update();
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+
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+ renderer.render( scene, camera );
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
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sunag
