分别用python,java,HTML+JS+CSS绘制心型

python绘制

多的不说直接上代码

import random
from math import sin, cos, pi, log
from tkinter import *CANVAS_WIDTH = 640
CANVAS_HEIGHT = 480
CANVAS_CENTER_X = CANVAS_WIDTH / 2
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2
IMAGE_ENLARGE = 11
HEART_COLOR = "#FFC0CB" #ff2121def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):x = 16 * (sin(t) ** 3)y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))x *= shrink_ratioy *= shrink_ratiox += CANVAS_CENTER_Xy += CANVAS_CENTER_Yreturn int(x), int(y)def scatter_inside(x, y, beta=0.15):ratio_x = - beta * log(random.random())ratio_y = - beta * log(random.random())dx = ratio_x * (x - CANVAS_CENTER_X)dy = ratio_y * (y - CANVAS_CENTER_Y)return x - dx, y - dydef shrink(x, y, ratio):force = -1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.6)  # 这个参数...dx = ratio * force * (x - CANVAS_CENTER_X)dy = ratio * force * (y - CANVAS_CENTER_Y)return x - dx, y - dydef curve(p):return 2 * (2 * sin(4 * p)) / (2 * pi)class Heart:def __init__(self, generate_frame=20):self._points = set()  # 原始爱心坐标集合self._edge_diffusion_points = set()  # 边缘扩散效果点坐标集合self._center_diffusion_points = set()  # 中心扩散效果点坐标集合self.all_points = {}  # 每帧动态点坐标self.build(2000)self.random_halo = 1000self.generate_frame = generate_framefor frame in range(generate_frame):self.calc(frame)def build(self, number):for _ in range(number):t = random.uniform(0, 2 * pi)x, y = heart_function(t)self._points.add((x, y))for _x, _y in list(self._points):for _ in range(3):x, y = scatter_inside(_x, _y, 0.05)self._edge_diffusion_points.add((x, y))point_list = list(self._points)for _ in range(4000):x, y = random.choice(point_list)x, y = scatter_inside(x, y, 0.17)self._center_diffusion_points.add((x, y))@staticmethoddef calc_position(x, y, ratio):force = 1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.520)  # 魔法参数dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)return x - dx, y - dydef calc(self, generate_frame):ratio = 10 * curve(generate_frame / 10 * pi)  # 圆滑的周期的缩放比例halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))halo_number = int(3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))all_points = []heart_halo_point = set()for _ in range(halo_number):t = random.uniform(0, 2 * pi)x, y = heart_function(t, shrink_ratio=11.6)x, y = shrink(x, y, halo_radius)if (x, y) not in heart_halo_point:heart_halo_point.add((x, y))x += random.randint(-14, 14)y += random.randint(-14, 14)size = random.choice((1, 2, 2))all_points.append((x, y, size))for x, y in self._points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 3)all_points.append((x, y, size))for x, y in self._edge_diffusion_points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 2)all_points.append((x, y, size))for x, y in self._center_diffusion_points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 2)all_points.append((x, y, size))self.all_points[generate_frame] = all_pointsdef render(self, render_canvas, render_frame):for x, y, size in self.all_points[render_frame % self.generate_frame]:render_canvas.create_rectangle(x, y, x + size, y + size, width=0, fill=HEART_COLOR)def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):render_canvas.delete('all')render_heart.render(render_canvas, render_frame)main.after(160, draw, main, render_canvas, render_heart, render_frame + 1)if __name__ == '__main__':root = Tk()  # 一个Tkcanvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)canvas.pack()heart = Heart()draw(root, canvas, heart)root.mainloop()

运行结果：

java绘制

第一种：

package Student;import java.awt.Color;import java.awt.Graphics;import java.awt.Image;import java.awt.Toolkit;import javax.swing.JFrame;public class xin extends JFrame {private static final long serialVersionUID = -1284128891908775645L;// 定义加载窗口大小public static final int GAME_WIDTH = 500;public static final int GAME_HEIGHT = 500;// 获取屏幕窗口大小public static final int WIDTH = Toolkit.getDefaultToolkit().getScreenSize().width;public static final int HEIGHT = Toolkit.getDefaultToolkit().getScreenSize().height;public void Demo() {// 设置窗口标题this.setTitle("心形曲线");// 设置窗口初始位置this.setLocation((WIDTH - GAME_WIDTH) / 2, (HEIGHT - GAME_HEIGHT) / 2);// 设置窗口大小this.setSize(GAME_WIDTH, GAME_HEIGHT);// 设置背景色this.setBackground(Color.BLACK);// 设置窗口关闭方式this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置窗口显示this.setVisible(true);}@Overridepublic void paint(Graphics g) {double x, y, r;Image OffScreen = createImage(GAME_WIDTH, GAME_HEIGHT);Graphics drawOffScreen = OffScreen.getGraphics();for (int i = 0; i < 90; i++) {for (int j = 0; j < 90; j++) {r = Math.PI / 45 * i * (1 - Math.sin(Math.PI / 45 * j)) * 18;x = r * Math.cos(Math.PI / 45 * j) * Math.sin(Math.PI / 45 * i)+ GAME_WIDTH / 2;y = -r * Math.sin(Math.PI / 45 * j) + GAME_HEIGHT / 4;//设置画笔颜色drawOffScreen.setColor(Color.PINK);// 绘制椭圆drawOffScreen.fillOval((int) x, (int) y, 2, 2);}// 生成图片g.drawImage(OffScreen, 0, 0, this);}}public static void main(String[] args) {xin demo = new xin();demo.setVisible(true);}}

运行结果：

第二种：

package Student;import java.awt.Color;import java.awt.Graphics;import java.awt.Image;import java.awt.Toolkit;import javax.swing.JFrame;@SuppressWarnings("serial")class Cardioid extends JFrame {// 定义窗口大小private static final int WIDTH = 480;private static final int HEIGHT = 600;// 获取屏幕大小private static int WINDOW_WIDTH = Toolkit.getDefaultToolkit().getScreenSize().width;private static int WINDOW_HEIGHT = Toolkit.getDefaultToolkit().getScreenSize().height;// 构造函数public Cardioid() {// 设置窗口标题super("❤形线");// 设置背景色this.setBackground(Color.BLACK);// 设置窗口位置this.setLocation((WINDOW_WIDTH - WIDTH) / 2,(WINDOW_HEIGHT - HEIGHT) / 2);// 设置窗口大小this.setSize(WIDTH, HEIGHT);// 设置窗口布局this.setLayout(getLayout());// 设置窗口可见this.setVisible(true);// 设置窗口默认关闭方式this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);}public void paint(Graphics g) {double x, y, r; // 横纵坐标及半径Image image = this.createImage(WIDTH, HEIGHT);Graphics pic = image.getGraphics();// 绘制图形for (int i = 0; i < 100; i++) {for (int j = 0; j < 100; j++) {r = Math.PI / 45 + Math.PI / 45 * i* (1 - Math.sin(Math.PI / 45 * j)) * 18;x = r * Math.cos(Math.PI / 45 * j) * Math.sin(Math.PI / 45 * i)+ WIDTH / 2;y = -r * Math.sin(Math.PI / 45 * j) + HEIGHT / 2;pic.setColor(Color.MAGENTA);pic.fillOval((int) x, (int) y, 2, 2);}// 生成图片g.drawImage(image, 0, 0, this);}}public static void main(String[] args) {new Cardioid();}}

结果：

HTML+JS+CSS

如果你的电脑上啥编译器也没有，你自己也不想安装，好吧用它就行了
第一种：

<HTML><style>html, body {height: 100%;padding: 0;margin: 0;background: #000;
}
canvas {position: absolute;width: 100%;height: 100%;
}</style></HEAD><BODY><canvas id="pinkboard"></canvas><script>/** Settings*/
var settings = {particles: {length:   500, // maximum amount of particlesduration:   2, // particle duration in secvelocity: 100, // particle velocity in pixels/seceffect: -0.75, // play with this for a nice effectsize:      30, // particle size in pixels},
};/** RequestAnimationFrame polyfill by Erik Möller*/
(function(){var b=0;var c=["ms","moz","webkit","o"];for(var a=0;a<c.length&&!window.requestAnimationFrame;++a){window.requestAnimationFrame=window[c[a]+"RequestAnimationFrame"];window.cancelAnimationFrame=window[c[a]+"CancelAnimationFrame"]||window[c[a]+"CancelRequestAnimationFrame"]}if(!window.requestAnimationFrame){window.requestAnimationFrame=function(h,e){var d=new Date().getTime();var f=Math.max(0,16-(d-b));var g=window.setTimeout(function(){h(d+f)},f);b=d+f;return g}}if(!window.cancelAnimationFrame){window.cancelAnimationFrame=function(d){clearTimeout(d)}}}());/** Point class*/
var Point = (function() {function Point(x, y) {this.x = (typeof x !== 'undefined') ? x : 0;this.y = (typeof y !== 'undefined') ? y : 0;}Point.prototype.clone = function() {return new Point(this.x, this.y);};Point.prototype.length = function(length) {if (typeof length == 'undefined')return Math.sqrt(this.x * this.x + this.y * this.y);this.normalize();this.x *= length;this.y *= length;return this;};Point.prototype.normalize = function() {var length = this.length();this.x /= length;this.y /= length;return this;};return Point;
})();/** Particle class*/
var Particle = (function() {function Particle() {this.position = new Point();this.velocity = new Point();this.acceleration = new Point();this.age = 0;}Particle.prototype.initialize = function(x, y, dx, dy) {this.position.x = x;this.position.y = y;this.velocity.x = dx;this.velocity.y = dy;this.acceleration.x = dx * settings.particles.effect;this.acceleration.y = dy * settings.particles.effect;this.age = 0;};Particle.prototype.update = function(deltaTime) {this.position.x += this.velocity.x * deltaTime;this.position.y += this.velocity.y * deltaTime;this.velocity.x += this.acceleration.x * deltaTime;this.velocity.y += this.acceleration.y * deltaTime;this.age += deltaTime;};Particle.prototype.draw = function(context, image) {function ease(t) {return (--t) * t * t + 1;}var size = image.width * ease(this.age / settings.particles.duration);context.globalAlpha = 1 - this.age / settings.particles.duration;context.drawImage(image, this.position.x - size / 2, this.position.y - size / 2, size, size);};return Particle;
})();/** ParticlePool class*/
var ParticlePool = (function() {var particles,firstActive = 0,firstFree   = 0,duration    = settings.particles.duration;function ParticlePool(length) {// create and populate particle poolparticles = new Array(length);for (var i = 0; i < particles.length; i++)particles[i] = new Particle();}ParticlePool.prototype.add = function(x, y, dx, dy) {particles[firstFree].initialize(x, y, dx, dy);// handle circular queuefirstFree++;if (firstFree   == particles.length) firstFree   = 0;if (firstActive == firstFree       ) firstActive++;if (firstActive == particles.length) firstActive = 0;};ParticlePool.prototype.update = function(deltaTime) {var i;// update active particlesif (firstActive < firstFree) {for (i = firstActive; i < firstFree; i++)particles[i].update(deltaTime);}if (firstFree < firstActive) {for (i = firstActive; i < particles.length; i++)particles[i].update(deltaTime);for (i = 0; i < firstFree; i++)particles[i].update(deltaTime);}// remove inactive particleswhile (particles[firstActive].age >= duration && firstActive != firstFree) {firstActive++;if (firstActive == particles.length) firstActive = 0;}};ParticlePool.prototype.draw = function(context, image) {// draw active particlesif (firstActive < firstFree) {for (i = firstActive; i < firstFree; i++)particles[i].draw(context, image);}if (firstFree < firstActive) {for (i = firstActive; i < particles.length; i++)particles[i].draw(context, image);for (i = 0; i < firstFree; i++)particles[i].draw(context, image);}};return ParticlePool;
})();/** Putting it all together*/
(function(canvas) {var context = canvas.getContext('2d'),particles = new ParticlePool(settings.particles.length),particleRate = settings.particles.length / settings.particles.duration, // particles/sectime;// get point on heart with -PI <= t <= PIfunction pointOnHeart(t) {return new Point(160 * Math.pow(Math.sin(t), 3),130 * Math.cos(t) - 50 * Math.cos(2 * t) - 20 * Math.cos(3 * t) - 10 * Math.cos(4 * t) + 25);}// creating the particle image using a dummy canvasvar image = (function() {var canvas  = document.createElement('canvas'),context = canvas.getContext('2d');canvas.width  = settings.particles.size;canvas.height = settings.particles.size;// helper function to create the pathfunction to(t) {var point = pointOnHeart(t);point.x = settings.particles.size / 2 + point.x * settings.particles.size / 350;point.y = settings.particles.size / 2 - point.y * settings.particles.size / 350;return point;}// create the pathcontext.beginPath();var t = -Math.PI;var point = to(t);context.moveTo(point.x, point.y);while (t < Math.PI) {t += 0.01; // baby steps!point = to(t);context.lineTo(point.x, point.y);}context.closePath();// create the fillcontext.fillStyle = '#ea80b0';context.fill();// create the imagevar image = new Image();image.src = canvas.toDataURL();return image;})();// render that thing!function render() {// next animation framerequestAnimationFrame(render);// update timevar newTime   = new Date().getTime() / 1000,deltaTime = newTime - (time || newTime);time = newTime;// clear canvascontext.clearRect(0, 0, canvas.width, canvas.height);// create new particlesvar amount = particleRate * deltaTime;for (var i = 0; i < amount; i++) {var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());var dir = pos.clone().length(settings.particles.velocity);particles.add(canvas.width / 2 + pos.x, canvas.height / 2 - pos.y, dir.x, -dir.y);}// update and draw particlesparticles.update(deltaTime);particles.draw(context, image);}// handle (re-)sizing of the canvasfunction onResize() {canvas.width  = canvas.clientWidth;canvas.height = canvas.clientHeight;}window.onresize = onResize;// delay rendering bootstrapsetTimeout(function() {onResize();render();}, 10);
})(document.getElementById('pinkboard'));</script></BODY>
</HTML>

效果展示：

第二种：

<!--* @Author: xf* @Date: 2020-12-25 15:02:20* @LastEditTime: 2020-12-25 17:01:57* @LastEditors: Please set LastEditors* @Description: In User Settings Edit* @FilePath: \抖音-流动爱心表白❤\index.html
-->
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><title>流动爱心表白</title><link rel="stylesheet" href="css/style.css" /></head><body><!-- 绘画爱心 --><canvas id="canvas" width="1400" height="600"></canvas><!-- js部分 --><script src="js/script.js"></script></body>
</html>

效果展示：

第三种：
这种有点复杂，但是嘎嘎板正：
你需要创建一个文件夹叫啥名都行里面在创建三个文件夹分别命名 img,js,css，在js里面创建script.js，在css里面创建style.css，在主文件创建***.HTML文件。在img文件夹里面加入六张图片，向我下面这样命名就行。

***.HTML文件

<!DOCTYPE html>
<html><head><meta charset="UTF-8"><title></title><style type="text/css">* {padding: 0;margin: 0;}body {perspective: 1000px;}#cube {position: relative;left: 0;top: 0;width: 200px;height: 200px;transform-origin: 50% 50% -100px;/*设置3D的环境*/transform-style: preserve-3d;transition: 2s;transform: translateX(60px) translateY(300px) translateZ(60px);}#cube div {position: absolute;width: 200px;height: 200px;}#cube div:nth-child(1) {top: -200px;transform-origin: bottom;transform: rotateX(90deg);}#cube div:nth-child(2) {top: 200px;transform-origin: top;transform: rotateX(-90deg);}#cube div:nth-child(3) {left: -200px;transform-origin: right;transform: rotateY(-90deg);}#cube div:nth-child(4) {left: 200px;transform-origin: left;transform: rotateY(90deg);}#cube div:nth-child(5) {transform: translateZ(-200deg)}#cube div:nth-child(6) {}body {background-color: black;}#heard {position: relative;width: 300px;height: 600px;margin: 100px auto;transform-style: preserve-3d;animation: rot 10s linear infinite;}@keyframes rot {from {transform: rotateY(0deg) rotateX(0deg) rotateZ(0deg)}to {transform: rotateY(360deg) rotateX(360deg) rotate(270deg)}}#heard div.heard {position: absolute;left: 0;top: 0;width: 300px;height: 600px;/*border: 2px solid red;*/border-left: 0;border-bottom: 0;border-radius: 50% 50% 0 /40% 50% 0;}#cube img {width: 200px;height: 200px;}</style>
</head><body><div id=heard><div id="cube"><div><img src="img/01.jpg" /></div><div><img src="img/02.jpg" /></div><div><img src="img/b_3.jpg" /></div><div><img src="img/b_4.jpg" /></div><div><img src="img/b_5.jpg" /></div><div><img src="img/b_6.jpg" /></div></div></div></body>
<script type="text/javascript">var colors = ["#FFB6C1", "#DB7093", "#FF69B4", "#483D8B", "# 4169E1", "#87CEFA", "#00BFFF", "#5F9EA0", "#00FA9A","#00FF7F", "#7FFF00", "#FFFFE0", "#F5DEB3", "#BC8F8F", "#800000"];var heard = document.getElementById("heard");for (var i = 0; i < 36; i++) {var cdiv = document.createElement("div");cdiv.className = "heard";cdiv.style.border = "2px solid " + colors[i % 15];cdiv.style.borderLeft = "0";cdiv.style.borderBottom = "0";cdiv.style.transform = "rotateY(" + i * 10 + "deg) rotateZ(45deg) translateX(150px)";heard.appendChild(cdiv);}
</script></html>

script.js

var canvas = document.getElementById("canvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
// Initialize the GL context
var gl = canvas.getContext('webgl');
if (!gl) {console.error("Unable to initialize WebGL.");
}
//Time step
var dt = 0.015;
//Time
var time = 0.0;
//************** Shader sources **************
var vertexSource = `
attribute vec2 position;
void main() {gl_Position = vec4(position, 0.0, 1.0);
}
`;var fragmentSource = `
precision highp float;
uniform float width;
uniform float height;
vec2 resolution = vec2(width, height);
uniform float time;
#define POINT_COUNT 8
vec2 points[POINT_COUNT];
const float speed = -0.5;
const float len = 0.25;
float intensity = 0.9;
float radius = 0.015;
//https://www.shadertoy.com/view/MlKcDD
//Signed distance to a quadratic bezier
float sdBezier(vec2 pos, vec2 A, vec2 B, vec2 C){    vec2 a = B - A;vec2 b = A - 2.0*B + C;vec2 c = a * 2.0;vec2 d = A - pos;float kk = 1.0 / dot(b,b);float kx = kk * dot(a,b);float ky = kk * (2.0*dot(a,a)+dot(d,b)) / 3.0;float kz = kk * dot(d,a);      float res = 0.0;float p = ky - kx*kx;float p3 = p*p*p;float q = kx*(2.0*kx*kx - 3.0*ky) + kz;float h = q*q + 4.0*p3;if(h >= 0.0){ h = sqrt(h);vec2 x = (vec2(h, -h) - q) / 2.0;vec2 uv = sign(x)*pow(abs(x), vec2(1.0/3.0));float t = uv.x + uv.y - kx;t = clamp( t, 0.0, 1.0 );// 1 rootvec2 qos = d + (c + b*t)*t;res = length(qos);}else{float z = sqrt(-p);float v = acos( q/(p*z*2.0) ) / 3.0;float m = cos(v);float n = sin(v)*1.732050808;vec3 t = vec3(m + m, -n - m, n - m) * z - kx;t = clamp( t, 0.0, 1.0 );// 3 rootsvec2 qos = d + (c + b*t.x)*t.x;float dis = dot(qos,qos);res = dis;qos = d + (c + b*t.y)*t.y;dis = dot(qos,qos);res = min(res,dis);qos = d + (c + b*t.z)*t.z;dis = dot(qos,qos);res = min(res,dis);res = sqrt( res );}return res;
}
//http://mathworld.wolfram.com/HeartCurve.html
vec2 getHeartPosition(float t){return vec2(16.0 * sin(t) * sin(t) * sin(t),-(13.0 * cos(t) - 5.0 * cos(2.0*t)- 2.0 * cos(3.0*t) - cos(4.0*t)));
}
//https://www.shadertoy.com/view/3s3GDn
float getGlow(float dist, float radius, float intensity){return pow(radius/dist, intensity);
}
float getSegment(float t, vec2 pos, float offset, float scale){for(int i = 0; i < POINT_COUNT; i++){points[i] = getHeartPosition(offset + float(i)*len + fract(speed * t) * 6.28);}vec2 c = (points[0] + points[1]) / 2.0;vec2 c_prev;float dist = 10000.0;for(int i = 0; i < POINT_COUNT-1; i++){//https://tinyurl.com/y2htbwkmc_prev = c;c = (points[i] + points[i+1]) / 2.0;dist = min(dist, sdBezier(pos, scale * c_prev, scale * points[i], scale * c));}return max(0.0, dist);
}
void main(){vec2 uv = gl_FragCoord.xy/resolution.xy;float widthHeightRatio = resolution.x/resolution.y;vec2 centre = vec2(0.5, 0.5);vec2 pos = centre - uv;pos.y /= widthHeightRatio;//Shift upwards to centre heartpos.y += 0.02;float scale = 0.000015 * height;float t = time;//Get first segmentfloat dist = getSegment(t, pos, 0.0, scale);float glow = getGlow(dist, radius, intensity);vec3 col = vec3(0.0);//White corecol += 10.0*vec3(smoothstep(0.003, 0.001, dist));//Pink glowcol += glow * vec3(0.94,0.14,0.4);//Get second segmentdist = getSegment(t, pos, 3.4, scale);glow = getGlow(dist, radius, intensity);//White corecol += 10.0*vec3(smoothstep(0.003, 0.001, dist));//Blue glowcol += glow * vec3(0.2,0.6,1.0);//Tone mappingcol = 1.0 - exp(-col);//Output to screengl_FragColor = vec4(col,1.0);
}
`;//************** Utility functions **************window.addEventListener('resize', onWindowResize, false);function onWindowResize() {canvas.width = window.innerWidth;canvas.height = window.innerHeight;gl.viewport(0, 0, canvas.width, canvas.height);gl.uniform1f(widthHandle, window.innerWidth);gl.uniform1f(heightHandle, window.innerHeight);
}//Compile shader and combine with source
function compileShader(shaderSource, shaderType) {var shader = gl.createShader(shaderType);gl.shaderSource(shader, shaderSource);gl.compileShader(shader);if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {throw "Shader compile failed with: " + gl.getShaderInfoLog(shader);}return shader;
}//From https://codepen.io/jlfwong/pen/GqmroZ
//Utility to complain loudly if we fail to find the attribute/uniform
function getAttribLocation(program, name) {var attributeLocation = gl.getAttribLocation(program, name);if (attributeLocation === -1) {throw 'Cannot find attribute ' + name + '.';}return attributeLocation;
}function getUniformLocation(program, name) {var attributeLocation = gl.getUniformLocation(program, name);if (attributeLocation === -1) {throw 'Cannot find uniform ' + name + '.';}return attributeLocation;
}//************** Create shaders **************//Create vertex and fragment shaders
var vertexShader = compileShader(vertexSource, gl.VERTEX_SHADER);
var fragmentShader = compileShader(fragmentSource, gl.FRAGMENT_SHADER);//Create shader programs
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);gl.useProgram(program);//Set up rectangle covering entire canvas 
var vertexData = new Float32Array([-1.0, 1.0, // top left-1.0, -1.0, // bottom left1.0, 1.0, // top right1.0, -1.0, // bottom right
]);//Create vertex buffer
var vertexDataBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, vertexDataBuffer);
gl.bufferData(gl.ARRAY_BUFFER, vertexData, gl.STATIC_DRAW);// Layout of our data in the vertex buffer
var positionHandle = getAttribLocation(program, 'position');gl.enableVertexAttribArray(positionHandle);
gl.vertexAttribPointer(positionHandle,2, // position is a vec2 (2 values per component)gl.FLOAT, // each component is a floatfalse, // don't normalize values2 * 4, // two 4 byte float components per vertex (32 bit float is 4 bytes)0 // how many bytes inside the buffer to start from
);//Set uniform handle
var timeHandle = getUniformLocation(program, 'time');
var widthHandle = getUniformLocation(program, 'width');
var heightHandle = getUniformLocation(program, 'height');gl.uniform1f(widthHandle, window.innerWidth);
gl.uniform1f(heightHandle, window.innerHeight);function draw() {//Update timetime += dt;//Send uniforms to programgl.uniform1f(timeHandle, time);//Draw a triangle strip connecting vertices 0-4gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);requestAnimationFrame(draw);
}draw();

style.css

body {background-color: #000;margin: 0;overflow: hidden;background-repeat: no-repeat;
}

看成品：
她当然是动态的，就不给大家演示了！