midas
/
threejs-obj-space


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - postprocessing - depth-of-field</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> - webgl realistic depth-of-field bokeh example<br/>
			shader ported from <a href="http://blenderartists.org/forum/showthread.php?237488-GLSL-depth-of-field-with-bokeh-v2-4-(update)">Martins Upitis</a>
		</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import Stats from './jsm/libs/stats.module.js';
			import { GUI } from './jsm/libs/dat.gui.module.js';

			import { BokehShader, BokehDepthShader } from './jsm/shaders/BokehShader2.js';

			var container, stats;
			var camera, scene, renderer, materialDepth;

			var windowHalfX = window.innerWidth / 2;
			var windowHalfY = window.innerHeight / 2;

			var postprocessing = { enabled: true };

			var shaderSettings = {
				rings: 3,
				samples: 4
			};

			var mouse = new THREE.Vector2();
			var raycaster = new THREE.Raycaster();
			var distance = 100;
			var target = new THREE.Vector3( 0, 20, - 50 );
			var effectController;
			var planes = [];
			var leaves = 100;

			init();
			animate();

			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 3000 );

				camera.position.y = 150;
				camera.position.z = 450;

				scene = new THREE.Scene();
				scene.add( camera );

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.autoClear = false;
				container.appendChild( renderer.domElement );

				var depthShader = BokehDepthShader;

				materialDepth = new THREE.ShaderMaterial( {
					uniforms: depthShader.uniforms,
					vertexShader: depthShader.vertexShader,
					fragmentShader: depthShader.fragmentShader
				} );

				materialDepth.uniforms[ 'mNear' ].value = camera.near;
				materialDepth.uniforms[ 'mFar' ].value = camera.far;

				// skybox

				var r = 'textures/cube/Bridge2/';
				var urls = [ r + 'posx.jpg', r + 'negx.jpg',
							 r + 'posy.jpg', r + 'negy.jpg',
							 r + 'posz.jpg', r + 'negz.jpg' ];

				var textureCube = new THREE.CubeTextureLoader().load( urls );
				textureCube.format = THREE.RGBFormat;

				scene.background = textureCube;

				// plane particles

				var planePiece = new THREE.PlaneBufferGeometry( 10, 10, 1, 1 );

				var planeMat = new THREE.MeshPhongMaterial( {
					color: 0xffffff * 0.4,
					shininess: 0.5,
					specular: 0xffffff,
					envMap: textureCube,
					side: THREE.DoubleSide
				} );

				var rand = Math.random;

				for ( var i = 0; i < leaves; i ++ ) {

					var plane = new THREE.Mesh( planePiece, planeMat );
					plane.rotation.set( rand(), rand(), rand() );
					plane.rotation.dx = rand() * 0.1;
					plane.rotation.dy = rand() * 0.1;
					plane.rotation.dz = rand() * 0.1;

					plane.position.set( rand() * 150, 0 + rand() * 300, rand() * 150 );
					plane.position.dx = ( rand() - 0.5 );
					plane.position.dz = ( rand() - 0.5 );
					scene.add( plane );
					planes.push( plane );

				}

				// adding Monkeys

				var loader2 = new THREE.BufferGeometryLoader();
				loader2.load( 'models/json/suzanne_buffergeometry.json', function ( geometry ) {

					geometry.computeVertexNormals();

					var material = new THREE.MeshPhongMaterial( {
						specular: 0xffffff,
						envMap: textureCube,
						shininess: 50,
						reflectivity: 1.0,
						flatShading: true
					} );

					var monkeys = 20;

					for ( var i = 0; i < monkeys; i ++ ) {

						var mesh = new THREE.Mesh( geometry, material );

						mesh.position.z = Math.cos( i / monkeys * Math.PI * 2 ) * 200;
						mesh.position.y = Math.sin( i / monkeys * Math.PI * 3 ) * 20;
						mesh.position.x = Math.sin( i / monkeys * Math.PI * 2 ) * 200;

						mesh.rotation.y = i / monkeys * Math.PI * 2;

						mesh.scale.setScalar( 30 );

						scene.add( mesh );

					}

				} );

				// add balls

				var geometry = new THREE.SphereBufferGeometry( 1, 20, 20 );

				for ( var i = 0; i < 20; i ++ ) {

					var ballmaterial = new THREE.MeshPhongMaterial( {
						color: 0xffffff * Math.random(),
						shininess: 0.5,
						specular: 0xffffff,
						envMap: textureCube } );

					var mesh = new THREE.Mesh( geometry, ballmaterial );

					mesh.position.x = ( Math.random() - 0.5 ) * 200;
					mesh.position.y = Math.random() * 50;
					mesh.position.z = ( Math.random() - 0.5 ) * 200;
					mesh.scale.multiplyScalar( 10 );
					scene.add( mesh );

				}

				// lights

				scene.add( new THREE.AmbientLight( 0x222222 ) );

				var directionalLight = new THREE.DirectionalLight( 0xffffff, 2 );
				directionalLight.position.set( 2, 1.2, 10 ).normalize();
				scene.add( directionalLight );

				var directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );
				directionalLight.position.set( - 2, 1.2, - 10 ).normalize();
				scene.add( directionalLight );

				initPostprocessing();

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

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'touchstart', onDocumentTouchStart, false );
				document.addEventListener( 'touchmove', onDocumentTouchMove, false );

				effectController = {

					enabled: true,
					jsDepthCalculation: true,
					shaderFocus: false,

					fstop: 2.2,
					maxblur: 1.0,

					showFocus: false,
					focalDepth: 2.8,
					manualdof: false,
					vignetting: false,
					depthblur: false,

					threshold: 0.5,
					gain: 2.0,
					bias: 0.5,
					fringe: 0.7,

					focalLength: 35,
					noise: true,
					pentagon: false,

					dithering: 0.0001

				};

				var matChanger = function () {

					for ( var e in effectController ) {

						if ( e in postprocessing.bokeh_uniforms ) {

							postprocessing.bokeh_uniforms[ e ].value = effectController[ e ];

						}

					}

					postprocessing.enabled = effectController.enabled;
					postprocessing.bokeh_uniforms[ 'znear' ].value = camera.near;
					postprocessing.bokeh_uniforms[ 'zfar' ].value = camera.far;
					camera.setFocalLength( effectController.focalLength );

				};

				var gui = new GUI();

				gui.add( effectController, 'enabled' ).onChange( matChanger );
				gui.add( effectController, 'jsDepthCalculation' ).onChange( matChanger );
				gui.add( effectController, 'shaderFocus' ).onChange( matChanger );
				gui.add( effectController, 'focalDepth', 0.0, 200.0 ).listen().onChange( matChanger );

				gui.add( effectController, 'fstop', 0.1, 22, 0.001 ).onChange( matChanger );
				gui.add( effectController, 'maxblur', 0.0, 5.0, 0.025 ).onChange( matChanger );

				gui.add( effectController, 'showFocus' ).onChange( matChanger );
				gui.add( effectController, 'manualdof' ).onChange( matChanger );
				gui.add( effectController, 'vignetting' ).onChange( matChanger );

				gui.add( effectController, 'depthblur' ).onChange( matChanger );

				gui.add( effectController, 'threshold', 0, 1, 0.001 ).onChange( matChanger );
				gui.add( effectController, 'gain', 0, 100, 0.001 ).onChange( matChanger );
				gui.add( effectController, 'bias', 0, 3, 0.001 ).onChange( matChanger );
				gui.add( effectController, 'fringe', 0, 5, 0.001 ).onChange( matChanger );

				gui.add( effectController, 'focalLength', 16, 80, 0.001 ).onChange( matChanger );

				gui.add( effectController, 'noise' ).onChange( matChanger );

				gui.add( effectController, 'dithering', 0, 0.001, 0.0001 ).onChange( matChanger );

				gui.add( effectController, 'pentagon' ).onChange( matChanger );

				gui.add( shaderSettings, 'rings', 1, 8 ).step( 1 ).onChange( shaderUpdate );
				gui.add( shaderSettings, 'samples', 1, 13 ).step( 1 ).onChange( shaderUpdate );

				matChanger();

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				windowHalfX = window.innerWidth / 2;
				windowHalfY = window.innerHeight / 2;

				postprocessing.rtTextureDepth.setSize( window.innerWidth, window.innerHeight );
				postprocessing.rtTextureColor.setSize( window.innerWidth, window.innerHeight );

				postprocessing.bokeh_uniforms[ 'textureWidth' ].value = window.innerWidth;
				postprocessing.bokeh_uniforms[ 'textureHeight' ].value = window.innerHeight;

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function onDocumentMouseMove( event ) {

				mouse.x = ( event.clientX - windowHalfX ) / windowHalfX;
				mouse.y = - ( event.clientY - windowHalfY ) / windowHalfY;

				postprocessing.bokeh_uniforms[ 'focusCoords' ].value.set( event.clientX / window.innerWidth, 1 - ( event.clientY / window.innerHeight ) );

			}

			function onDocumentTouchStart( event ) {

				if ( event.touches.length == 1 ) {

					event.preventDefault();

					mouse.x = ( event.touches[ 0 ].pageX - windowHalfX ) / windowHalfX;
					mouse.y = - ( event.touches[ 0 ].pageY - windowHalfY ) / windowHalfY;

				}

			}

			function onDocumentTouchMove( event ) {

				if ( event.touches.length == 1 ) {

					event.preventDefault();

					mouse.x = ( event.touches[ 0 ].pageX - windowHalfX ) / windowHalfX;
					mouse.y = - ( event.touches[ 0 ].pageY - windowHalfY ) / windowHalfY;

				}

			}

			function initPostprocessing() {

				postprocessing.scene = new THREE.Scene();

				postprocessing.camera = new THREE.OrthographicCamera( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, - 10000, 10000 );
				postprocessing.camera.position.z = 100;

				postprocessing.scene.add( postprocessing.camera );

				var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat };
				postprocessing.rtTextureDepth = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, pars );
				postprocessing.rtTextureColor = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, pars );

				var bokeh_shader = BokehShader;

				postprocessing.bokeh_uniforms = THREE.UniformsUtils.clone( bokeh_shader.uniforms );

				postprocessing.bokeh_uniforms[ 'tColor' ].value = postprocessing.rtTextureColor.texture;
				postprocessing.bokeh_uniforms[ 'tDepth' ].value = postprocessing.rtTextureDepth.texture;
				postprocessing.bokeh_uniforms[ 'textureWidth' ].value = window.innerWidth;
				postprocessing.bokeh_uniforms[ 'textureHeight' ].value = window.innerHeight;

				postprocessing.materialBokeh = new THREE.ShaderMaterial( {

					uniforms: postprocessing.bokeh_uniforms,
					vertexShader: bokeh_shader.vertexShader,
					fragmentShader: bokeh_shader.fragmentShader,
					defines: {
						RINGS: shaderSettings.rings,
						SAMPLES: shaderSettings.samples
					}

				} );

				postprocessing.quad = new THREE.Mesh( new THREE.PlaneBufferGeometry( window.innerWidth, window.innerHeight ), postprocessing.materialBokeh );
				postprocessing.quad.position.z = - 500;
				postprocessing.scene.add( postprocessing.quad );

			}

			function shaderUpdate() {

				postprocessing.materialBokeh.defines.RINGS = shaderSettings.rings;
				postprocessing.materialBokeh.defines.SAMPLES = shaderSettings.samples;
				postprocessing.materialBokeh.needsUpdate = true;

			}

			function animate() {

				requestAnimationFrame( animate, renderer.domElement );

				render();
				stats.update();

			}

			function linearize( depth ) {

				var zfar = camera.far;
				var znear = camera.near;
				return - zfar * znear / ( depth * ( zfar - znear ) - zfar );

			}

			function smoothstep( near, far, depth ) {

				var x = saturate( ( depth - near ) / ( far - near ) );
				return x * x * ( 3 - 2 * x );

			}

			function saturate( x ) {

				return Math.max( 0, Math.min( 1, x ) );

			}

			function render() {

				var time = Date.now() * 0.00015;

				camera.position.x = Math.cos( time ) * 400;
				camera.position.z = Math.sin( time ) * 500;
				camera.position.y = Math.sin( time / 1.4 ) * 100;

				camera.lookAt( target );

				camera.updateMatrixWorld();

				if ( effectController.jsDepthCalculation ) {

					raycaster.setFromCamera( mouse, camera );

					var intersects = raycaster.intersectObjects( scene.children, true );

					var targetDistance = ( intersects.length > 0 ) ? intersects[ 0 ].distance : 1000;

					distance += ( targetDistance - distance ) * 0.03;

					var sdistance = smoothstep( camera.near, camera.far, distance );

					var ldistance = linearize( 1 - sdistance );

					postprocessing.bokeh_uniforms[ 'focalDepth' ].value = ldistance;

					effectController[ 'focalDepth' ] = ldistance;

				}

				for ( var i = 0; i < leaves; i ++ ) {

					var plane = planes[ i ];
					plane.rotation.x += plane.rotation.dx;
					plane.rotation.y += plane.rotation.dy;
					plane.rotation.z += plane.rotation.dz;
					plane.position.y -= 2;
					plane.position.x += plane.position.dx;
					plane.position.z += plane.position.dz;

					if ( plane.position.y < 0 ) plane.position.y += 300;

				}


				if ( postprocessing.enabled ) {

					renderer.clear();

					// render scene into texture

					renderer.setRenderTarget( postprocessing.rtTextureColor );
					renderer.clear();
					renderer.render( scene, camera );

					// render depth into texture

					scene.overrideMaterial = materialDepth;
					renderer.setRenderTarget( postprocessing.rtTextureDepth );
					renderer.clear();
					renderer.render( scene, camera );
					scene.overrideMaterial = null;

					// render bokeh composite

					renderer.setRenderTarget( null );
					renderer.render( postprocessing.scene, postprocessing.camera );


				} else {

					scene.overrideMaterial = null;

					renderer.setRenderTarget( null );
					renderer.clear();
					renderer.render( scene, camera );

				}

			}

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