webgl canvas烟花雨动画效果代码-html代码-BFW代码库

webgl canvas烟花雨动画效果代码

代码语言：html

所属分类：动画

代码描述：webgl canvas烟花雨动画效果代码，点击鼠标看效果。

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>
canvas {
	position: absolute;
	top: 0;
	left: 0;
	background-color: #111;
}
</style>



</head>

<body>
  <canvas id=c></canvas>

  
      <script  >
var gl = c.getContext('webgl', { preserveDrawingBuffer: true }),
w = c.width = window.innerWidth,
h = c.height = window.innerHeight,

webgl = {},
opts = {
  projectileAlpha: .8,
  projectileLineWidth: 1.3,
  fireworkAngleSpan: .5,
  baseFireworkVel: 3,
  addedFireworkVel: 3,
  gravity: .03,
  lowVelBoundary: -.2,
  xFriction: .995,
  baseShardVel: 1,
  addedShardVel: .2,
  fireworks: 1000,
  baseShardsParFirework: 10,
  addedShardsParFirework: 10,
  shardFireworkVelMultiplier: .3,
  initHueMultiplier: 1 / 360,
  runHueAdder: .1 / 360 };


webgl.vertexShaderSource = `
uniform int u_mode;
uniform vec2 u_res;
attribute vec4 a_data;
varying vec4 v_color;

vec3 h2rgb( float h ){
	return clamp( abs( mod( h * 6. + vec3( 0, 4, 2 ), 6. ) - 3. ) -1., 0., 1. );
}
void clear(){
	gl_Position = vec4( a_d.........完整代码请登录后点击上方下载按钮下载查看