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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - postprocessing - GTAO</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: #ffffff;
- color: #000;
- }
- a {
- color: #2983ff;
- }
- </style>
- </head>
- <body>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Mesh Post Processing Material by <a href="https://github.com/Rabbid76" target="_blank" rel="noopener">Rabbid76</a><br/>
- <p>Improved application of the AO passes by using the AO directly in the material shader instead of simply blending with the whole scene</p>
- </div>
- <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 { 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 { PLYLoader } from 'three/addons/loaders/PLYLoader.js';
- import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
- import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
- import { GTAOPass } from 'three/addons/postprocessing/GTAOPass.js';
- import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';
- import { MeshPostProcessingMaterial } from 'three/addons/materials/MeshPostProcessingMaterial.js';
- let renderer, camera, scene, composer, controls, stats;
- const sceneParameters = {
- output: 0,
- envMapIntensity: 1.0,
- ambientLightIntensity: 0.0,
- lightIntensity: 50,
- shadow: true,
- };
- const aoParameters = {
- radius: 0.5,
- distanceExponent: 2.,
- thickness: 10.,
- scale: 1.,
- samples: 16,
- distanceFallOff: 1.,
- };
- init();
- function init() {
- const container = document.createElement( 'div' );
- document.body.appendChild( container );
- stats = new Stats();
- container.appendChild( stats.dom );
- renderer = new THREE.WebGLRenderer();
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- document.body.appendChild( renderer.domElement );
- renderer.shadowMap.enabled = sceneParameters.shadow;
- const plyLoader = new PLYLoader();
- const rgbeloader = new RGBELoader();
- camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 50 );
- camera.position.set( 0, 3, 5 );
- controls = new OrbitControls( camera, renderer.domElement );
- controls.target.set( 0, 1, 0 );
- controls.update();
- controls.enablePan = false;
- controls.enableDamping = true;
- const width = window.innerWidth;
- const height = window.innerHeight;
- scene = new THREE.Scene();
- composer = new EffectComposer( renderer );
- const gtaoPass = new GTAOPass( scene, camera, width, height );
- gtaoPass.output = GTAOPass.OUTPUT.Off;
- const renderPasse = new RenderPass( scene, camera );
- const outputPass = new OutputPass();
- composer.addPass( gtaoPass );
- composer.addPass( renderPasse );
- composer.addPass( outputPass );
- rgbeloader.load( 'textures/equirectangular/royal_esplanade_1k.hdr', function ( texture ) {
- texture.mapping = THREE.EquirectangularReflectionMapping;
- scene.environment = texture;
- } );
-
- const groundMaterial = new MeshPostProcessingMaterial( { color: 0x7f7f7f, envMapIntensity: sceneParameters.envMapIntensity, aoPassMap: gtaoPass.gtaoMap } );
- const objectMaterial = new MeshPostProcessingMaterial( { color: 0xffffff, roughness: 0.5, metalness: 0.5, envMapIntensity: sceneParameters.envMapIntensity, aoPassMap: gtaoPass.gtaoMap } );
- const emissiveMaterial = new MeshPostProcessingMaterial( { color: 0, emissive: 0xffffff, aoPassMap: gtaoPass.gtaoMap } );
- plyLoader.load( 'models/ply/binary/Lucy100k.ply', ( geometry ) => {
- geometry.computeVertexNormals();
- const lucy = new THREE.Mesh( geometry, objectMaterial );
- lucy.receiveShadow = true;
- lucy.castShadow = true;
- lucy.scale.setScalar( 0.001 );
- lucy.rotation.set( 0, Math.PI, 0 );
- lucy.position.set( 0.04, 1.8, 0.02 );
- scene.add( lucy );
- } );
- const ambientLight = new THREE.AmbientLight( 0xffffff, sceneParameters.ambientLightIntensity );
- const lightGroup = new THREE.Group();
- const planeGeometry = new THREE.PlaneGeometry( 6, 6 );
- const cylinderGeometry = new THREE.CylinderGeometry( 0.5, 0.5, 1, 64 );
- const sphereGeometry = new THREE.SphereGeometry( 0.5, 32, 32 );
- const lightSphereGeometry = new THREE.SphereGeometry( 0.1, 32, 32 );
- scene.background = new THREE.Color( 0xbfe3dd );
- scene.add( ambientLight );
- scene.add( lightGroup );
- const targetObject = new THREE.Object3D();
- targetObject.position.set( 0, 1, 0 );
- scene.add( targetObject );
- const lightColors = [ 0xff4040, 0x40ff40, 0x4040ff ];
- for ( let j = 0; j < 3; ++ j ) {
- const light = new THREE.SpotLight( lightColors[ j ], sceneParameters.lightIntensity, 0, Math.PI / 9 );
- light.castShadow = true;
- light.shadow.camera.far = 15;
- light.position.set( 5 * Math.cos( Math.PI * j * 2 / 3 ), 2.5, 5 * Math.sin( Math.PI * j * 2 / 3 ) );
- light.target = targetObject;
- lightGroup.add( light );
- }
- const groundPlane = new THREE.Mesh( planeGeometry, groundMaterial );
- groundPlane.rotation.x = - Math.PI / 2;
- groundPlane.position.set( 0, 0, 0 );
- groundPlane.receiveShadow = true;
- scene.add( groundPlane );
- const pedestal = new THREE.Mesh( cylinderGeometry, groundMaterial );
- pedestal.position.set( 0, 0.5, 0 );
- pedestal.receiveShadow = true;
- pedestal.castShadow = true;
- scene.add( pedestal );
- const sphereMesh = new THREE.InstancedMesh( sphereGeometry, objectMaterial, 6 );
- sphereMesh.receiveShadow = true;
- sphereMesh.castShadow = true;
- scene.add( sphereMesh );
- [ ...Array( 6 ).keys() ].forEach( ( i ) => sphereMesh.setMatrixAt( i, new THREE.Matrix4().makeTranslation( Math.cos( Math.PI * i / 3 ), 0.5, Math.sin( Math.PI * i / 3 ) ) ) );
- const lightSphereMesh = new THREE.InstancedMesh( lightSphereGeometry, emissiveMaterial, 4 );
- scene.add( lightSphereMesh );
- [ ...Array( 4 ).keys() ].forEach( ( i ) => lightSphereMesh.setMatrixAt( i, new THREE.Matrix4().makeTranslation( 0.4 * Math.cos( Math.PI * ( i + 0.5 ) / 2 ), 1.1, 0.45 * Math.sin( Math.PI * ( i + 0.5 ) / 2 ) ) ) );
- const updateGtaoMaterial = () => gtaoPass.updateGtaoMaterial( aoParameters );
- const updateOutput = () => {
- composer.removePass( gtaoPass );
- composer.insertPass( gtaoPass, sceneParameters.output == 1 ? 1 : 0 );
- switch ( sceneParameters.output ) {
- default:
- case 0:
- gtaoPass.output = GTAOPass.OUTPUT.Off;
- gtaoPass.enabled = true;
- renderPasse.enabled = true;
- break;
- case 1:
- gtaoPass.output = GTAOPass.OUTPUT.Default;
- gtaoPass.enabled = true;
- renderPasse.enabled = true;
- break;
- case 2:
- gtaoPass.output = GTAOPass.OUTPUT.Diffuse;
- gtaoPass.enabled = false;
- renderPasse.enabled = true;
- break;
- case 3:
- gtaoPass.output = GTAOPass.OUTPUT.Denoise;
- gtaoPass.enabled = true;
- renderPasse.enabled = false;
- break;
- }
- groundMaterial.aoPassMap = sceneParameters.output === 0 ? gtaoPass.gtaoMap : null;
- objectMaterial.aoPassMap = sceneParameters.output === 0 ? gtaoPass.gtaoMap : null;
- };
- updateOutput();
- updateGtaoMaterial();
- const gui = new GUI();
- gui.add( sceneParameters, 'output', {
- 'material AO': 0,
- 'post blended AO': 1,
- 'only diffuse': 2,
- 'only AO': 3,
- } ).onChange( () => updateOutput() );
- gui.add( sceneParameters, 'envMapIntensity' ).min( 0 ).max( 1 ).step( 0.01 ).onChange( () => {
- groundMaterial.envMapIntensity = sceneParameters.envMapIntensity;
- objectMaterial.envMapIntensity = sceneParameters.envMapIntensity;
- } );
- gui.add( sceneParameters, 'ambientLightIntensity' ).min( 0.0 ).max( 1.0 ).step( 0.01 ).onChange( () => {
- ambientLight.intensity = sceneParameters.ambientLightIntensity;
- } );
- gui.add( sceneParameters, 'lightIntensity' ).min( 0 ).max( 100 ).step( 1 ).onChange( () => {
- lightGroup.children.forEach( light => light.intensity = sceneParameters.lightIntensity );
- } );
- gui.add( sceneParameters, 'shadow' ).onChange( ( value ) => {
- renderer.shadowMap.enabled = value;
- lightGroup.children.forEach( light => light.castShadow = value );
-
- } );
- gui.add( aoParameters, 'radius' ).min( 0.01 ).max( 2 ).step( 0.01 ).onChange( () => updateGtaoMaterial() );
- gui.add( aoParameters, 'distanceExponent' ).min( 1 ).max( 4 ).step( 0.01 ).onChange( () => updateGtaoMaterial() );
- gui.add( aoParameters, 'thickness' ).min( 0.01 ).max( 10 ).step( 0.01 ).onChange( () => updateGtaoMaterial() );
- gui.add( aoParameters, 'distanceFallOff' ).min( 0 ).max( 1 ).step( 0.01 ).onChange( () => updateGtaoMaterial() );
- gui.add( aoParameters, 'scale' ).min( 0.01 ).max( 2.0 ).step( 0.01 ).onChange( () => updateGtaoMaterial() );
- gui.add( aoParameters, 'samples' ).min( 2 ).max( 32 ).step( 1 ).onChange( () => updateGtaoMaterial() );
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- const width = window.innerWidth;
- const height = window.innerHeight;
- camera.aspect = width / height;
- camera.updateProjectionMatrix();
- renderer.setSize( width, height );
- composer.setSize( width, height );
- }
- function animate() {
- controls.update();
- stats.begin();
- composer.render();
- stats.end();
- }
- </script>
- </body>
- </html>
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