canvas+webgl实现三维彩色点围成圆形扩散动画效果代码-html代码-BFW代码库

canvas+webgl实现三维彩色点围成圆形扩散动画效果代码

代码语言：html

所属分类：三维

代码描述：canvas+webgl实现三维彩色点围成圆形扩散动画效果代码

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">
  

  
</head>

<body>
  
  
      <script >
const canvas = document.createElement("canvas");
const gl = canvas.getContext("webgl2");

document.title = "🤖";
document.body.innerHTML = "";
document.body.appendChild(canvas);
document.body.style = "margin:0;touch-action:none;overflow:hidden;";
canvas.style.width = "100%";
canvas.style.height = "auto";
canvas.style.userSelect = "none";

const dpr = Math.max(1, .5 * window.devicePixelRatio);

function resize() {
  const {
    innerWidth: width,
    innerHeight: height } =
  window;

  canvas.width = width * dpr;
  canvas.height = height * dpr;

  gl.viewport(0, 0, width * dpr, height * dpr);
}
window.onresize = resize;

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

    in vec4 position;

    void main(void) {
        gl_Position = position;
    }
    `;

const fragmentSource = `#version 300 es
    /*********
     * made by Matthias Hurrle (@atzedent) 
     * 
     * Adaptation of "Quasar" by @kishimisu 
     * Source: https://www.shadertoy.com/view/msGyzc
     */
    #ifdef GL_FRAGMENT_PRECISION_HIGH
    precision highp float;
    #else
    precision mediump float;
    #endif

    out vec4 fragColor;

    uniform vec2 resolution;
    uniform float time;
    uniform vec2 touch;
    uniform int pointerCount;

    #define mouse (touch/resolution)
    #define P pointerCount
    #define T (10.+time*.5)
    #define S smoothstep

    #define hue(a) (.6+.6*cos(6.3*(a)+vec3(0,23,21)))

    mat2 rot(float a) {
        float c = cos(a), s = sin(a);

        r.........完整代码请登录后点击上方下载按钮下载查看