“ 看着这些波浪1分钟，会给你带来56%的宁静。 ”
实现代码
HTML：
<div class="world"></div><div class="title"><p>Looking at these waves for 1 minute<br/>will bring you 56% more serenity*</p><p class="remark">* According to a very serious and reliable study conducted by myself.</p>
<div class="credits"> <a href="https://codepen.io/Yakudoo/" target="blank">my other codepens</a> | <a href="https://www.epic.net" target="blank">epic.net</a></div>
</div>
<script type="x-shader/x-fragment" id="fragmentShader">precision highp float;
uniform float uTime;uniform vec2 uMousePosition;uniform float uHue;uniform float uHueVariation;uniform float uDensity;uniform float uDisplacement;uniform float uGradient;
varying vec2 vUv;
float mod289(float x){return x - floor(x * (1.0 / 289.0)) * 289.0;}vec4 mod289(vec4 x){return x - floor(x * (1.0 / 289.0)) * 289.0;}vec4 perm(vec4 x){return mod289(((x * 34.0) + 1.0) * x);}
float rand(vec2 co){return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);}
float hue2rgb(float f1, float f2, float hue) {if (hue < 0.0)hue += 1.0;else if (hue > 1.0)hue -= 1.0;float res;if ((6.0 * hue) < 1.0)res = f1 + (f2 - f1) * 6.0 * hue;else if ((2.0 * hue) < 1.0)res = f2;else if ((3.0 * hue) < 2.0)res = f1 + (f2 - f1) * ((2.0 / 3.0) - hue) * 6.0;elseres = f1;return res;}
vec3 hsl2rgb(vec3 hsl) {vec3 rgb;
if (hsl.y == 0.0) {rgb = vec3(hsl.z); // Luminance} else {float f2;
if (hsl.z < 0.5)f2 = hsl.z * (1.0 + hsl.y);elsef2 = hsl.z + hsl.y - hsl.y * hsl.z;
float f1 = 2.0 * hsl.z - f2;
rgb.r = hue2rgb(f1, f2, hsl.x + (1.0/3.0));rgb.g = hue2rgb(f1, f2, hsl.x);rgb.b = hue2rgb(f1, f2, hsl.x - (1.0/3.0));}return rgb;}
vec3 hsl2rgb(float h, float s, float l) {return hsl2rgb(vec3(h, s, l));}
float noise(vec3 p){vec3 a = floor(p);vec3 d = p - a;d = d * d * (3.0 - 2.0 * d);
vec4 b = a.xxyy + vec4(0.0, 1.0, 0.0, 1.0);vec4 k1 = perm(b.xyxy);vec4 k2 = perm(k1.xyxy + b.zzww);
vec4 c = k2 + a.zzzz;vec4 k3 = perm(c);vec4 k4 = perm(c + 1.0);
vec4 o1 = fract(k3 * (1.0 / 41.0));vec4 o2 = fract(k4 * (1.0 / 41.0));
vec4 o3 = o2 * d.z + o1 * (1.0 - d.z);vec2 o4 = o3.yw * d.x + o3.xz * (1.0 - d.x);
return o4.y * d.y + o4.x * (1.0 - d.y);}
vec2 fade(vec2 t) {return t*t*t*(t*(t*6.0-15.0)+10.0);}
float cnoise(vec2 P){vec4 Pi = floor(P.xyxy) + vec4(0.0, 0.0, 1.0, 1.0);vec4 Pf = fract(P.xyxy) - vec4(0.0, 0.0, 1.0, 1.0);Pi = mod(Pi, 289.0); // To avoid truncation effects in permutationvec4 ix = Pi.xzxz;vec4 iy = Pi.yyww;vec4 fx = Pf.xzxz;vec4 fy = Pf.yyww;vec4 i = perm(perm(ix) + iy);vec4 gx = 2.0 * fract(i * 0.0243902439) - 1.0; // 1/41 = 0.024...vec4 gy = abs(gx) - 0.5;vec4 tx = floor(gx + 0.5);gx = gx - tx;vec2 g00 = vec2(gx.x,gy.x);vec2 g10 = vec2(gx.y,gy.y);vec2 g01 = vec2(gx.z,gy.z);vec2 g11 = vec2(gx.w,gy.w);vec4 norm = 1.79284291400159 - 0.85373472095314 *vec4(dot(g00, g00), dot(g01, g01), dot(g10, g10), dot(g11, g11));g00 *= norm.x;g01 *= norm.y;g10 *= norm.z;g11 *= norm.w;float n00 = dot(g00, vec2(fx.x, fy.x));float n10 = dot(g10, vec2(fx.y, fy.y));float n01 = dot(g01, vec2(fx.z, fy.z));float n11 = dot(g11, vec2(fx.w, fy.w));vec2 fade_xy = fade(Pf.xy);vec2 n_x = mix(vec2(n00, n01), vec2(n10, n11), fade_xy.x);float n_xy = mix(n_x.x, n_x.y, fade_xy.y);return 2.3 * n_xy;}
void main () {float mouseDistance = length(vUv - uMousePosition);float t = uTime * .005;float elevation = vUv.y * uDensity * 30.0;
float shadow = smoothstep(0.0, .3 + sin(t * 5.0 * 3.14) * .1 , mouseDistance);elevation += shadow * 5.0;
float displacement = cnoise( vec2( t + vUv.y * 2.0, t + vUv.x * 3.0 )) * uDisplacement * 3.0 ;
elevation += displacement * 4.0;elevation *= 2.0 + cnoise( vec2( t + vUv.y * 1.0, t + .5)) * 2.0 ;
//elevation += cnoise ( vec2 (elevation * .1, t * 3.0) );
float light = .9 + fract(elevation) ;light *= .9 + (1.0 - (displacement * displacement)) * .1;elevation = floor(elevation);//elevation += uGradient * .25;
float hue = uHue + shadow * .1 + cnoise( vec2( elevation * .10, .1 + t)) * uHueVariation;float saturation = .6;;float brightness = - (1.0 - shadow) * .1 + .5 - smoothstep( 0.0, .9, cnoise( vec2( elevation * .5, .4 + t * 5.0)) ) * .1;
vec3 hslCol = vec3( hue, saturation, brightness);vec3 col = hsl2rgb(hslCol) * vec3(light, 1.0, 1.0);
/* circle:float d = length(vUv- vec2(.5,.5));float radius = .1;// + (t * .1);float stroke = 0.001;float smoothing = .0005;d = smoothstep(radius, radius+smoothing, d) - smoothstep(radius+stroke, radius+stroke+smoothing, d);
col += d;// * 10.0;*/
gl_FragColor = vec4(col, 1.);}</script>
<script type="x-shader/x-vertex" id="vertexShader"> // attributes of our meshattribute vec3 position;attribute vec2 uv;
// built-in uniforms from ThreeJS camera and Object3Duniform mat4 projectionMatrix;uniform mat4 modelViewMatrix;uniform mat3 normalMatrix;
// custom uniforms to build up our tubesuniform float uTime;uniform vec2 uMousePosition;
// pass a few things along to the vertex shadervarying vec2 vUv;
void main() {vUv = uv;vec4 pos = vec4(position, 1.0);gl_Position = pos;}</script>
CSS：
@import url('https://fonts.googleapis.com/css?family=Poppins:400,900');
body{overflow: hidden;}canvas { display: block; }
.world{ position: absolute; width:100%; height:100%; background: #FF4066;}
.title{ position: absolute; color: white;width: calc (100%-80); font-size: 24px;font-weight: 900; font-family: "Poppins"; //text-align: right; letter-spacing: 1px; bottom: 40px; left: 40px;//display: none;}
.remark{ position: relative; color: white; font-size: 10px; font-family: "Poppins"; font-weight: 400; letter-spacing: 1px;line-height:1.5;//display: none;}
.credits{ position:relative;color:white;margin-top:20px; font-size:10px;font-family:"Poppins", sans-serif;font-weight: 900;letter-spacing: 3px; text-transform: uppercase;}.credits a { color:white;text-decoration: none;}.credits a:hover { color:blue;text-decoration: none;}
JAVASCRIPT：
class World { constructor(width, height) {
this.renderer = new THREE.WebGLRenderer({ alpha: true, antialias: true }); this.renderer.setPixelRatio(window.devicePixelRatio); this.renderer.setSize(width, height); this.container = document.getElementsByClassName("world")[0]; this.scene = new THREE.Scene(); this.width = width; this.height = height; this.aspectRatio = width / height; this.fieldOfView = 50; var nearPlane = .1; var farPlane = 20000; this.camera = new THREE.PerspectiveCamera(this.fieldOfView, this.aspectRatio, nearPlane, farPlane);this.camera.position.z = 200;this.container.appendChild(this.renderer.domElement); this.timer = 0;this.mousePos = {x:0, y:0};this.targetMousePos = {x:0, y:0}; this.createPlane();this.render(); }
createPlane(){ this.material = new THREE.RawShaderMaterial({ vertexShader: document.getElementById( 'vertexShader' ).textContent, fragmentShader: document.getElementById('fragmentShader').textContent, uniforms: { uTime: { type: 'f', value: 0 },uHue: {type: 'f', value: .5},uHueVariation: {type: 'f', value: 1},uGradient: {type: 'f', value: 1},uDensity: {type: 'f', value: 1},uDisplacement: {type: 'f', value: 1}, uMousePosition: {type: 'v2', value: new THREE.Vector2( 0.5, 0.5 ) } } }); this.planeGeometry = new THREE.PlaneGeometry(2, 2, 1, 1);
this.plane = new THREE.Mesh(this.planeGeometry, this.material);this.scene.add(this.plane); }
render() { this.timer += parameters.speed;this.plane.material.uniforms.uTime.value = this.timer;
this.mousePos.x += (this.targetMousePos.x - this.mousePos.x) * .1;this.mousePos.y += (this.targetMousePos.y - this.mousePos.y) * .1;
if (this.plane){this.plane.material.uniforms.uMousePosition.value = new THREE.Vector2(this.mousePos.x, this.mousePos.y);}
this.renderer.render(this.scene, this.camera); }
loop() { this.render(); requestAnimationFrame(this.loop.bind(this)); }
updateSize(w, h) { this.renderer.setSize(w, h); this.camera.aspect = w / h; this.camera.updateProjectionMatrix(); } mouseMove(mousePos) {this.targetMousePos.x = mousePos.px;this.targetMousePos.y = mousePos.py; }};
document.addEventListener("DOMContentLoaded", domIsReady);let mousePos = {x:0, y:0, px:0, py:0};let world;let gui = new dat.GUI();
let parameters = { speed: .2,hue: .5,hueVariation: 1,gradient: .3,density: .5,displacement: .66,
}
function domIsReady() {world = new World(this.container, this.renderer, window.innerWidth, window.innerHeight);window.addEventListener('resize', handleWindowResize, false);document.addEventListener("mousemove", handleMouseMove, false);handleWindowResize();world.loop();initGui();}
var guiHue;
function initGui(){gui.width = 250; guiSpeed = gui.add(parameters, 'speed').min(.1).max(1).step(.01).name('speed');guiHue = gui.add(parameters, 'hue').min(0).max(1).step(.01).name('hue');guiVariation = gui.add(parameters, 'hueVariation').min(0).max(1).step(.01).name('hue variation');//guiGradient = gui.add(parameters, 'gradient').min(0).max(1).step(.01).name('inner gradient');guiDensity = gui.add(parameters, 'density').min(0).max(1).step(.01).name('density');guiDisp = gui.add(parameters, 'displacement').min(0).max(1).step(.01).name('displacement');
guiHue.onChange( function(value) {updateParameters();});
guiVariation.onChange( function(value) {updateParameters();});/*guiGradient.onChange( function(value) {updateParameters();});*/guiDensity.onChange( function(value) {updateParameters();});
guiDisp.onChange( function(value) {updateParameters();});updateParameters();}
function updateParameters(){world.plane.material.uniforms.uHue.value = parameters.hue;world.plane.material.uniforms.uHueVariation.value = parameters.hueVariation;//world.plane.material.uniforms.uGradient.value = parameters.gradient;world.plane.material.uniforms.uDensity.value = parameters.density;world.plane.material.uniforms.uDisplacement.value = parameters.displacement;}
function handleWindowResize() { world.updateSize(window.innerWidth, window.innerHeight);}
function handleMouseMove(e) { mousePos.x = e.clientX; mousePos.y = e.clientY; mousePos.px = mousePos.x / window.innerWidth; mousePos.py = 1.0 - mousePos.y / window.innerHeight; world.mouseMove(mousePos);}
源码：
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