javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">

<head>

	<head>
		<title>three.js webgl - postprocessing - Screen Space Refraction</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="container"></div>
	<div id="info">
		<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> -
		SSRrPass demo by <a href="https://github.com/gonnavis" target="_blank">Vis</a>.<br />
		click object to toggle transparent<br/>
	</div>
	
	<script type="module">
		import * as THREE from '../build/three.module.js';

		import Stats from './jsm/libs/stats.module.js';

		import { OrbitControls } from './jsm/controls/OrbitControls.js';

		import { GUI } from './jsm/libs/dat.gui.module.js';
		import { EffectComposer } from './jsm/postprocessing/EffectComposer.js';
		import { SSRrPass } from './jsm/postprocessing/SSRrPass.js';

		import { DRACOLoader } from './jsm/loaders/DRACOLoader.js';

		const params = {
			enableSSRr: true,
			autoRotate: true,
		};
		let composer;
		let ssrrPass;
		let gui;
		let stats;
		let controls;
		let camera, scene, renderer;
		const objects = [];
		const selects = [];
		const raycaster = new THREE.Raycaster();
		const mouseDown = new THREE.Vector2();
		const mouse = new THREE.Vector2();

		const container = document.querySelector('#container');

		// Configure and create Draco decoder.
		const dracoLoader = new DRACOLoader();
		dracoLoader.setDecoderPath('js/libs/draco/');
		dracoLoader.setDecoderConfig({ type: 'js' });

		init();
		animate();

		function init() {

			camera = new THREE.PerspectiveCamera(35, window.innerWidth / window.innerHeight, 0.1, 15);
			camera.position.set(0.13271600513224902, 0.3489546826045913, 0.43921296427927076);

			scene = new THREE.Scene();
			scene.background = new THREE.Color(0x443333);
			scene.fog = new THREE.Fog(0x443333, 1, 4);

			// Ground
			let map=new THREE.TextureLoader().load('./textures/uv_grid_opengl.jpg')
			map.wrapS = THREE.RepeatWrapping;
			map.wrapT = THREE.RepeatWrapping;
			map.repeat.set(20,20)
			const plane = new THREE.Mesh(
				new THREE.PlaneGeometry(8, 8),
				new THREE.MeshPhongMaterial({ 
					color: 0x999999, 
					specular: 0x101010,
					map,
				})
			);
			plane.rotation.x = - Math.PI / 2;
			plane.position.y = - 0.0001;
			// plane.receiveShadow = true;
			scene.add(plane);
			plane.name='plane'

			// Lights
			const hemiLight = new THREE.HemisphereLight(0x443333, 0x111122);
			hemiLight.name='hemiLight'
			scene.add(hemiLight);

			const spotLight = new THREE.SpotLight();
			spotLight.name='spotLight'
			spotLight.angle = Math.PI / 16;
			spotLight.penumbra = 0.5;
			// spotLight.castShadow = true;
			spotLight.position.set(- 1, 1, 1);
			scene.add(spotLight);

			dracoLoader.load('models/draco/bunny.drc', function (geometry) {

				geometry.computeVertexNormals();

				const material = new THREE.MeshStandardMaterial({ color: 0x606060 });
				const mesh = new THREE.Mesh(geometry, material);
				mesh.position.y = - 0.0365;
				mesh.name='bunny'
				scene.add(mesh);
				objects.push(mesh);
				selects.push(mesh);

				// Release decoder resources.
				dracoLoader.dispose();

			});

			let geometry, material, mesh;

			geometry = new THREE.BoxBufferGeometry(.05, .05, .05);
			material = new THREE.MeshStandardMaterial({ color: 'green' });
			mesh = new THREE.Mesh(geometry, material);
			mesh.position.set(- .12, .025, .015);
			mesh.name='box'
			scene.add(mesh);
			objects.push( mesh );
			selects.push( mesh );

			geometry = new THREE.IcosahedronBufferGeometry(.025, 4);
			material = new THREE.MeshStandardMaterial({ color: 'cyan' });
			mesh = new THREE.Mesh(geometry, material);
			mesh.position.set(- .05, .025, .08);
			mesh.name='sphere'
			scene.add(mesh);
			objects.push( mesh );
			// selects.push( mesh );

			geometry = new THREE.ConeBufferGeometry(.025, .05, 64);
			material = new THREE.MeshStandardMaterial({ color: 'yellow' });
			mesh = new THREE.Mesh(geometry, material);
			mesh.position.set(- .05, .025, - .055);
			mesh.name='cone'
			scene.add(mesh);
			objects.push( mesh );
			// selects.push( mesh );

			// renderer
			renderer = new THREE.WebGLRenderer({ antialias: false });
			renderer.setSize(window.innerWidth, window.innerHeight);
			renderer.outputEncoding = THREE.sRGBEncoding;
			renderer.autoClear=false
			container.appendChild(renderer.domElement);

			//

			controls = new OrbitControls(camera, renderer.domElement);
			controls.enableDamping = true;
			controls.target.set(0, 0.0635, 0);
			controls.update();
			controls.enabled = !params.autoRotate;

			// STATS

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

			window.addEventListener('resize', onWindowResize, false);
			window.addEventListener( 'pointerdown', onPointerDown, false );
			window.addEventListener( 'pointerup', onPointerUp, false );

			// composer

			composer = new EffectComposer(renderer);
			ssrrPass = new SSRrPass({
				renderer,
				scene,
				camera,
				width: innerWidth,
				height: innerHeight,
				encoding: THREE.sRGBEncoding,
				selects: selects
			});

			composer.addPass(ssrrPass);

			// GUI

			gui = new GUI();
			gui.add(params, 'enableSSRr').name('Enable SSRr');
			ssrrPass.ior = 1.1;
			gui.add(ssrrPass, 'ior').name('IOR').min(1).max(1.5).step(.0001);
			gui.add( ssrrPass, 'fillHole' );
			gui.add(params, 'autoRotate').onChange(() => {

				controls.enabled = !params.autoRotate;

			});

			const folder = gui.addFolder('more settings');
			folder.add( ssrrPass, 'specular' );
			folder.add(ssrrPass.specularMaterial, 'metalness').min(0).max(1).step(.01);
			folder.add(ssrrPass.specularMaterial, 'roughness').min(0).max(1).step(.01);
			folder.add(ssrrPass, 'output', {
				'Default': SSRrPass.OUTPUT.Default,
				'SSRr Only': SSRrPass.OUTPUT.SSRr,
				'Beauty': SSRrPass.OUTPUT.Beauty,
				'Depth': SSRrPass.OUTPUT.Depth,
				'DepthSelects': SSRrPass.OUTPUT.DepthSelects,
				'NormalSelects': SSRrPass.OUTPUT.NormalSelects,
				'Refractive': SSRrPass.OUTPUT.Refractive,
				'Specular': SSRrPass.OUTPUT.Specular,
			}).onChange(function (value) {

				ssrrPass.output = parseInt(value);

			});
			ssrrPass.surfDist = 0.0015;
			folder.add( ssrrPass, 'surfDist' ).min( 0 ).max( .005 ).step( .0001 );
			ssrrPass.maxDistance = 50;
			folder.add( ssrrPass, 'maxDistance' ).min( 0 ).max( 100 ).step( .001 )
			folder.add( ssrrPass, 'infiniteThick' );
			// folder.open()
			// gui.close()

		}

		function onPointerDown( event ) {
			mouseDown.x = ( event.clientX / window.innerWidth ) * 2 - 1;
			mouseDown.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
		}
		function onPointerUp( event ) {

			// calculate mouse position in normalized device coordinates
			// (-1 to +1) for both components

			mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
			mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;

			if(mouseDown.sub(mouse).length()>0) return


			raycaster.setFromCamera( mouse, camera );
			const intersect = raycaster.intersectObjects( objects )[0];
			if(intersect){
				let index=selects.indexOf(intersect.object)
				if(index>=0){
					selects.splice(index,1)
				}else{
					selects.push(intersect.object)
				}
			}
		}


		function onWindowResize() {

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

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

		}

		function animate() {

			requestAnimationFrame(animate);

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

		}

		function render() {

			if (params.autoRotate) {

				const timer = Date.now() * 0.0003;

				camera.position.x = Math.sin(timer) * 0.5;
				camera.position.y = 0.2135;
				camera.position.z = Math.cos(timer) * 0.5;
				camera.lookAt(0, 0.0635, 0);

			} else {

				controls.update();

			}

			if (params.enableSSRr) {

				composer.render();

			} else {

				renderer.render(scene, camera);

			}

		}
	</script>
</body>

</html>