160 lines
3.7 KiB
HTML
160 lines
3.7 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - materials - shaders [Fresnel]</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> - webgl cube Fresnel shader demo.<br/>texture by <a href="http://www.humus.name/index.php?page=Textures" target="_blank" rel="noopener">Humus</a>
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</div>
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<script type="module">
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import * as THREE from '../build/three.module.js';
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import { FresnelShader } from './jsm/shaders/FresnelShader.js';
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let container;
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let camera, scene, renderer;
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const spheres = [];
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let mouseX = 0, mouseY = 0;
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let windowHalfX = window.innerWidth / 2;
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let windowHalfY = window.innerHeight / 2;
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document.addEventListener( 'mousemove', onDocumentMouseMove );
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init();
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animate();
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 100000 );
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camera.position.z = 3200;
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//
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const path = "textures/cube/Park2/";
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const format = '.jpg';
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const urls = [
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path + 'posx' + format, path + 'negx' + format,
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path + 'posy' + format, path + 'negy' + format,
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path + 'posz' + format, path + 'negz' + format
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];
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const textureCube = new THREE.CubeTextureLoader().load( urls );
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scene = new THREE.Scene();
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scene.background = textureCube;
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//
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const geometry = new THREE.SphereGeometry( 100, 32, 16 );
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const shader = FresnelShader;
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const uniforms = THREE.UniformsUtils.clone( shader.uniforms );
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uniforms[ "tCube" ].value = textureCube;
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const material = new THREE.ShaderMaterial( {
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uniforms: uniforms,
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vertexShader: shader.vertexShader,
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fragmentShader: shader.fragmentShader
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} );
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for ( let i = 0; i < 500; i ++ ) {
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const mesh = new THREE.Mesh( geometry, material );
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mesh.position.x = Math.random() * 10000 - 5000;
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mesh.position.y = Math.random() * 10000 - 5000;
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mesh.position.z = Math.random() * 10000 - 5000;
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mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 3 + 1;
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scene.add( mesh );
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spheres.push( mesh );
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}
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//
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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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//
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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windowHalfX = window.innerWidth / 2;
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windowHalfY = window.innerHeight / 2;
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function onDocumentMouseMove( event ) {
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mouseX = ( event.clientX - windowHalfX ) * 10;
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mouseY = ( event.clientY - windowHalfY ) * 10;
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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}
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function render() {
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const timer = 0.0001 * Date.now();
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camera.position.x += ( mouseX - camera.position.x ) * .05;
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camera.position.y += ( - mouseY - camera.position.y ) * .05;
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camera.lookAt( scene.position );
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for ( let i = 0, il = spheres.length; i < il; i ++ ) {
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const sphere = spheres[ i ];
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sphere.position.x = 5000 * Math.cos( timer + i );
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sphere.position.y = 5000 * Math.sin( timer + i * 1.1 );
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}
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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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