javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - postprocessing - Horizon Based Ambient Occlusion</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: #bfe3dd;
				color: #000;
			}
			a {
				color: #2983ff;
			}
		</style>
	</head>
	<body>
		<div id="info">
			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - horizon based ambient occlusion (HBAO) by <a href="https://github.com/Rabbid76">Rabbid76</a><br/>
		</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 { RoomEnvironment } from 'three/addons/environments/RoomEnvironment.js';
			import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
			import { DRACOLoader } from 'three/addons/loaders/DRACOLoader.js';

			import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
			import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
			import { HBAOPass } from 'three/addons/postprocessing/HBAOPass.js';
			import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';

			let mixer;

			const clock = new THREE.Clock();
			const container = document.createElement( 'div' );
			document.body.appendChild( container );

			const stats = new Stats();
			container.appendChild( stats.dom );

			const renderer = new THREE.WebGLRenderer( { antialias: true } );
			renderer.setSize( window.innerWidth, window.innerHeight );
			document.body.appendChild( renderer.domElement );

			const pmremGenerator = new THREE.PMREMGenerator( renderer );

			const scene = new THREE.Scene();
			scene.background = new THREE.Color( 0xbfe3dd );
			scene.environment = pmremGenerator.fromScene( new RoomEnvironment( renderer ), 0.04 ).texture;

			const camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 100 );
			camera.position.set( 5, 2, 8 );

			const controls = new OrbitControls( camera, renderer.domElement );
			controls.target.set( 0, 0.5, 0 );
			controls.update();
			controls.enablePan = false;
			controls.enableDamping = true;

			const dracoLoader = new DRACOLoader();
			dracoLoader.setDecoderPath( 'jsm/libs/draco/gltf/' );

			const loader = new GLTFLoader();
			loader.setDRACOLoader( dracoLoader );
			loader.load( 'models/gltf/LittlestTokyo.glb', function ( gltf ) {

				const model = gltf.scene;
				model.position.set( 1, 1, 0 );
				model.scale.set( 0.01, 0.01, 0.01 );
				scene.add( model );

				mixer = new THREE.AnimationMixer( model );
				mixer.clipAction( gltf.animations[ 0 ] ).play();

				animate();

			}, undefined, function ( e ) {

				console.error( e );

			} );

			const width = window.innerWidth;
			const height = window.innerHeight;
			const pixelRatio = renderer.getPixelRatio();
			const maxSamples = renderer.capabilities.maxSamples;

			const renderTarget = new THREE.WebGLRenderTarget( width * pixelRatio, height * pixelRatio, {
				type: THREE.HalfFloatType,
				samples: maxSamples,
			} );
			renderTarget.texture.name = 'EffectComposer.rt1';
			const composer = new EffectComposer( renderer, renderTarget );

			const renderPass = new RenderPass( scene, camera );
			composer.addPass( renderPass );

			const hbaoPass = new HBAOPass( scene, camera, width, height );
			hbaoPass.output = HBAOPass.OUTPUT.Denoise;
			composer.addPass( hbaoPass );

			const outputPass = new OutputPass();
			composer.addPass( outputPass );

			// Init gui
			const gui = new GUI();

			gui.add( hbaoPass, 'output', {
				'Default': HBAOPass.OUTPUT.Default,
				'Diffuse': HBAOPass.OUTPUT.Diffuse,
				'HBAO Only': HBAOPass.OUTPUT.HBAO,
				'HBAO Only + Denoise': HBAOPass.OUTPUT.Denoise,
				'Depth': HBAOPass.OUTPUT.Depth,
				'Normal': HBAOPass.OUTPUT.Normal
			} ).onChange( function ( value ) {

				hbaoPass.output = value;

			} );

			const hbaoParameters = {
				radius: 2.,
				distanceExponent: 1.,
				bias: 0.01,
				samples: 16,
			};
			const pdParameters = {
				lumaPhi: 10.,
				depthPhi: 2.,
				normalPhi: 3.,
				radius: 10.,
				rings: 4,
				samples: 16,
			};
			hbaoPass.updateHbaoMaterial( hbaoParameters );
			hbaoPass.updatePdMaterial( pdParameters );
			gui.add( hbaoParameters, 'radius' ).min( 0.01 ).max( 10 ).step( 0.01 ).onChange( () => hbaoPass.updateHbaoMaterial( hbaoParameters ) );
			gui.add( hbaoParameters, 'distanceExponent' ).min( 1 ).max( 4 ).step( 0.01 ).onChange( () => hbaoPass.updateHbaoMaterial( hbaoParameters ) );
			gui.add( hbaoParameters, 'bias' ).min( 0 ).max( 0.1 ).step( 0.001 ).onChange( () => hbaoPass.updateHbaoMaterial( hbaoParameters ) );
			gui.add( hbaoParameters, 'samples' ).min( 1 ).max( 32 ).step( 1 ).onChange( () => hbaoPass.updateHbaoMaterial( hbaoParameters ) );
			gui.add( pdParameters, 'lumaPhi' ).min( 0 ).max( 20 ).step( 0.01 ).onChange( () => hbaoPass.updatePdMaterial( pdParameters ) );
			gui.add( pdParameters, 'depthPhi' ).min( 0.01 ).max( 20 ).step( 0.01 ).onChange( () => hbaoPass.updatePdMaterial( pdParameters ) );
			gui.add( pdParameters, 'normalPhi' ).min( 0.01 ).max( 20 ).step( 0.01 ).onChange( () => hbaoPass.updatePdMaterial( pdParameters ) );
			gui.add( pdParameters, 'radius' ).min( 0 ).max( 32 ).step( 1 ).onChange( () => hbaoPass.updatePdMaterial( pdParameters ) );
			gui.add( pdParameters, 'rings' ).min( 0 ).max( 16 ).step( 0.125 ).onChange( () => hbaoPass.updatePdMaterial( pdParameters ) );
			gui.add( pdParameters, 'samples' ).min( 1 ).max( 32 ).step( 1 ).onChange( () => hbaoPass.updatePdMaterial( pdParameters ) );

			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() {

				requestAnimationFrame( animate );

				const delta = clock.getDelta();

				mixer.update( delta );

				controls.update();

				stats.begin();
				composer.render();
				stats.end();

			}

		</script>
	</body>
</html>