canvas+webgl实现曼陀罗式能量波扩散动画效果代码-html代码-BFW代码库

canvas+webgl实现曼陀罗式能量波扩散动画效果代码

代码语言：html

所属分类：动画

代码描述：canvas+webgl实现曼陀罗式能量波扩散动画效果代码

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>
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
  
  background:
  repeating-radial-gradient(
  circle at center,
    #444 0 10%,
    #111 10% 20%
  );
  
  touch-action: none;
}

canvas {
  width: 100%;
  height: auto;
  object-fit: contain;
}
</style>


  
  
</head>

<body>
  <canvas id="canvas"></canvas>
  
      <script  >
/*********
* made by Matthias Hurrle (@atzedent)
*/

/** @type {HTMLCanvasElement} */
const canvas = window.canvas;
const gl = canvas.getContext('webgl2');
const dpr = window.devicePixelRatio;

const vertexSource = `#version 300 es
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif

in vec2 position;

void main(void) {
    gl_Position = vec4(position, 0., 1.);
}
`;
const fragmentSource = `#version 300 es
/*********
* made by Matthias Hurrle (@atzedent)
*/

#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif

out vec4 fragColor;

uniform vec2 resolution;
uniform float time;

#define S smoothstep
#define T .112358+time

#define TAU 6.2831853

vec3 palette(float k) {
  vec3
  a = vec3(.5),
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