鼠标跟随粒子发散效果-html代码-BFW代码库

鼠标跟随粒子发散效果

代码语言：html

所属分类：粒子

代码描述：鼠标跟随粒子发散效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>

body {
  display: grid;
  -webkit-box-pack: center;
          justify-content: center;
  align-content: center;
  height: 100vh;
  font: 5vh Lora;
}
a {
  color: #222a;
  -webkit-text-decoration: #2224 wavy underline;
          text-decoration: #2224 wavy underline;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
a:hover {
  color: #2223;
  text-shadow: 0 0 100px #333;
}
canvas {
  position: fixed;
  z-index: -1;
}
</style>

</head>
<body translate="no">
<a href="" >hello</a>

<script>
console.clear();
const canvas = document.createElement('canvas');
document.body.append(canvas);
canvas.style.display = 'block';
canvas.style.width = '100vw';
canvas.style.height = '100vh';

canvas.width = canvas.offsetWidth;
canvas.height = canvas.offsetHeight;

const gl = canvas.getContext('webgl2');
if (!gl) {
    alert('require webgl 2.0, bye')
}

const vss = `#version 300 es
in vec2 p;
void main() {
  gl_Position = vec4(p, 0.0, 1.0);
}
`;

const fss = `#version 300 es
precision mediump float;
out vec4 o;
uniform vec4 c;
void main() {
  o = c;
}
`;


// Create shader program
// # should query both shader logs and program logs
// #  only if program link's status is false.
// 
// Here's the antipattern .. keep for ref
//

const vs = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vs, vss);
gl.compileShader(vs);
if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS)) {
    console.error(gl.getShaderInfoLog(vs));
    throw 1;
}

const fs = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fs, fss);
gl.compileShader(fs);
if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {
    console.error(gl.getShaderInfoLog(fs));
    throw 2;
}

const prg = gl.createProgram();
gl.attachShader(prg, vs);
gl.attachShader(prg, fs);
gl.linkProgram(prg);
if (!gl.getProgramParameter(prg, gl.LINK_STATUS)) {
    console.error(gl.getProgramInfoLog(prg));
    throw 3;
}

gl.detachShader(prg, vs);
gl.deleteShader.........完整代码请登录后点击上方下载按钮下载查看