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147 lines
3.7 KiB
147 lines
3.7 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - shader [Monjori]</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="container"></div>
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<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - shader demo. featuring <a href="http://www.pouet.net/prod.php?which=52761" target="_blank" rel="noopener">Monjori by Mic</a></div>
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<script id="vertexShader" type="x-shader/x-vertex">
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varying vec2 vUv;
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void main() {
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vUv = uv;
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gl_Position = vec4( position, 1.0 );
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}
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</script>
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<script id="fragmentShader" type="x-shader/x-fragment">
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varying vec2 vUv;
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uniform float time;
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void main() {
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vec2 p = - 1.0 + 2.0 * vUv;
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float a = time * 40.0;
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float d, e, f, g = 1.0 / 40.0 ,h ,i ,r ,q;
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e = 400.0 * ( p.x * 0.5 + 0.5 );
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f = 400.0 * ( p.y * 0.5 + 0.5 );
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i = 200.0 + sin( e * g + a / 150.0 ) * 20.0;
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d = 200.0 + cos( f * g / 2.0 ) * 18.0 + cos( e * g ) * 7.0;
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r = sqrt( pow( abs( i - e ), 2.0 ) + pow( abs( d - f ), 2.0 ) );
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q = f / r;
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e = ( r * cos( q ) ) - a / 2.0;
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f = ( r * sin( q ) ) - a / 2.0;
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d = sin( e * g ) * 176.0 + sin( e * g ) * 164.0 + r;
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h = ( ( f + d ) + a / 2.0 ) * g;
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i = cos( h + r * p.x / 1.3 ) * ( e + e + a ) + cos( q * g * 6.0 ) * ( r + h / 3.0 );
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h = sin( f * g ) * 144.0 - sin( e * g ) * 212.0 * p.x;
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h = ( h + ( f - e ) * q + sin( r - ( a + h ) / 7.0 ) * 10.0 + i / 4.0 ) * g;
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i += cos( h * 2.3 * sin( a / 350.0 - q ) ) * 184.0 * sin( q - ( r * 4.3 + a / 12.0 ) * g ) + tan( r * g + h ) * 184.0 * cos( r * g + h );
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i = mod( i / 5.6, 256.0 ) / 64.0;
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if ( i < 0.0 ) i += 4.0;
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if ( i >= 2.0 ) i = 4.0 - i;
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d = r / 350.0;
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d += sin( d * d * 8.0 ) * 0.52;
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f = ( sin( a * g ) + 1.0 ) / 2.0;
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gl_FragColor = vec4( vec3( f * i / 1.6, i / 2.0 + d / 13.0, i ) * d * p.x + vec3( i / 1.3 + d / 8.0, i / 2.0 + d / 18.0, i ) * d * ( 1.0 - p.x ), 1.0 );
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}
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</script>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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let camera, scene, renderer;
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let uniforms;
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init();
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animate();
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function init() {
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const container = document.getElementById( 'container' );
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camera = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
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scene = new THREE.Scene();
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const geometry = new THREE.PlaneGeometry( 2, 2 );
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uniforms = {
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time: { value: 1.0 }
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};
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const material = new THREE.ShaderMaterial( {
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uniforms: uniforms,
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vertexShader: document.getElementById( 'vertexShader' ).textContent,
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fragmentShader: document.getElementById( 'fragmentShader' ).textContent
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} );
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const mesh = new THREE.Mesh( geometry, material );
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scene.add( mesh );
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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container.appendChild( renderer.domElement );
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onWindowResize();
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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uniforms[ 'time' ].value = performance.now() / 1000;
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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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