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270 lines
6.5 KiB
270 lines
6.5 KiB
2 years ago
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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 - materials - displacement map</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="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - (normal + ao + displacement + environment) map demo.<br />
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ninja head from <a href="https://gpuopen.com/archive/gamescgi/amd-gpu-meshmapper/" target="_blank" rel="noopener">AMD GPU MeshMapper</a>
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</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 Stats from 'three/addons/libs/stats.module.js';
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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 { OBJLoader } from 'three/addons/loaders/OBJLoader.js';
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let stats;
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let camera, scene, renderer, controls;
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const settings = {
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metalness: 1.0,
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roughness: 0.4,
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ambientIntensity: 0.2,
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aoMapIntensity: 1.0,
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envMapIntensity: 1.0,
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displacementScale: 2.436143, // from original model
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normalScale: 1.0
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};
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let mesh, material;
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let pointLight, ambientLight;
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const height = 500; // of camera frustum
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let r = 0.0;
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init();
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animate();
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initGui();
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// Init gui
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function initGui() {
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const gui = new GUI();
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//let gui = gui.addFolder( "Material" );
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gui.add( settings, 'metalness' ).min( 0 ).max( 1 ).onChange( function ( value ) {
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material.metalness = value;
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} );
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gui.add( settings, 'roughness' ).min( 0 ).max( 1 ).onChange( function ( value ) {
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material.roughness = value;
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} );
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gui.add( settings, 'aoMapIntensity' ).min( 0 ).max( 1 ).onChange( function ( value ) {
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material.aoMapIntensity = value;
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} );
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gui.add( settings, 'ambientIntensity' ).min( 0 ).max( 1 ).onChange( function ( value ) {
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ambientLight.intensity = value;
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} );
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gui.add( settings, 'envMapIntensity' ).min( 0 ).max( 3 ).onChange( function ( value ) {
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material.envMapIntensity = value;
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} );
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gui.add( settings, 'displacementScale' ).min( 0 ).max( 3.0 ).onChange( function ( value ) {
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material.displacementScale = value;
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} );
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gui.add( settings, 'normalScale' ).min( - 1 ).max( 1 ).onChange( function ( value ) {
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material.normalScale.set( 1, - 1 ).multiplyScalar( value );
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} );
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}
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function init() {
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const container = document.createElement( 'div' );
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document.body.appendChild( container );
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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renderer.outputEncoding = THREE.sRGBEncoding;
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//
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scene = new THREE.Scene();
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const aspect = window.innerWidth / window.innerHeight;
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camera = new THREE.OrthographicCamera( - height * aspect, height * aspect, height, - height, 1, 10000 );
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camera.position.z = 1500;
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scene.add( camera );
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controls = new OrbitControls( camera, renderer.domElement );
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controls.enableZoom = false;
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controls.enableDamping = true;
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// lights
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ambientLight = new THREE.AmbientLight( 0xffffff, settings.ambientIntensity );
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scene.add( ambientLight );
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pointLight = new THREE.PointLight( 0xff0000, 0.5 );
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pointLight.position.z = 2500;
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scene.add( pointLight );
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const pointLight2 = new THREE.PointLight( 0xff6666, 1 );
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camera.add( pointLight2 );
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const pointLight3 = new THREE.PointLight( 0x0000ff, 0.5 );
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pointLight3.position.x = - 1000;
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pointLight3.position.z = 1000;
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scene.add( pointLight3 );
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// env map
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const path = 'textures/cube/SwedishRoyalCastle/';
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const format = '.jpg';
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const urls = [
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path + 'px' + format, path + 'nx' + format,
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path + 'py' + format, path + 'ny' + format,
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path + 'pz' + format, path + 'nz' + format
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];
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const reflectionCube = new THREE.CubeTextureLoader().load( urls );
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reflectionCube.encoding = THREE.sRGBEncoding;
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// textures
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const textureLoader = new THREE.TextureLoader();
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const normalMap = textureLoader.load( 'models/obj/ninja/normal.png' );
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const aoMap = textureLoader.load( 'models/obj/ninja/ao.jpg' );
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const displacementMap = textureLoader.load( 'models/obj/ninja/displacement.jpg' );
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// material
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material = new THREE.MeshStandardMaterial( {
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color: 0x888888,
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roughness: settings.roughness,
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metalness: settings.metalness,
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normalMap: normalMap,
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normalScale: new THREE.Vector2( 1, - 1 ), // why does the normal map require negation in this case?
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aoMap: aoMap,
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aoMapIntensity: 1,
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displacementMap: displacementMap,
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displacementScale: settings.displacementScale,
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displacementBias: - 0.428408, // from original model
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envMap: reflectionCube,
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envMapIntensity: settings.envMapIntensity,
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side: THREE.DoubleSide
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} );
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//
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const loader = new OBJLoader();
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loader.load( 'models/obj/ninja/ninjaHead_Low.obj', function ( group ) {
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const geometry = group.children[ 0 ].geometry;
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geometry.attributes.uv2 = geometry.attributes.uv;
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geometry.center();
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mesh = new THREE.Mesh( geometry, material );
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mesh.scale.multiplyScalar( 25 );
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scene.add( mesh );
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} );
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//
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stats = new Stats();
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container.appendChild( stats.dom );
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//
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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const aspect = window.innerWidth / window.innerHeight;
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camera.left = - height * aspect;
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camera.right = height * aspect;
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camera.top = height;
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camera.bottom = - height;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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controls.update();
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stats.begin();
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render();
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stats.end();
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}
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function render() {
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pointLight.position.x = 2500 * Math.cos( r );
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pointLight.position.z = 2500 * Math.sin( r );
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r += 0.01;
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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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