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