webgl+canvas实现深不见底的巨龙喉咙交互动画效果代码-html代码-BFW代码库

webgl+canvas实现深不见底的巨龙喉咙交互动画效果代码

代码语言：html

所属分类：动画

代码描述：webgl+canvas实现深不见底的巨龙喉咙交互动画效果代码

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.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 = 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) 
     */
    #ifdef GL_FRAGMENT_PRECISION_HIGH
    precision highp float;
    #else
    precision mediump float;
    #endif
    
    out vec4 fragColor;
    
    uniform vec2 resolution;
    uniform float time;
    uniform int pointerCount;
    uniform vec2 touch;
    
    #define P pointerCount
    #define mouse (touch/resolution)
    
    #define T time
    #define S smoothstep
    
    mat2 rot(float a) {
      float s = sin(a),
      c = cos(a);
      return mat2(c, -s, s, c);
    }
    
    vec3 pattern(vec2 uv) {
      vec3 col = vec3(0);
    
      uv *= 600.;
      const float steps = 20.;
    
      for (float i = .0; i < steps; i++) {
        uv.y -= i*1e-3 * uv.x;
        uv.x += i *1.2 * sin(uv.x*.09)*cos(uv.y*.05+T*2.5);
        float
        t = 63.*i/steps+T*.1,
        x = cos(t),
        y = sin(t*.1);
    
        vec2 p = 1e2*vec2(x, y)/sin(3.15*sin(uv.x*.05+T*.1));
        col += i/length(uv-p)*(cos(vec3(0, 3.........完整代码请登录后点击上方下载按钮下载查看