three+webgl+gsap模拟海底海水涟漪动画效果代码-html代码-BFW代码库

three+webgl+gsap模拟海底海水涟漪动画效果代码

代码语言：html

所属分类：动画

代码描述：three+webgl+gsap模拟海底海水涟漪动画效果代码

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">
<link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/reset.min.css">

</head>

<body>
  <canvas id="webgl-canvas"></canvas>

<!-- vertexShader -->
<script id="js-vertex-shader" type="x-shader/x-vertex">
  varying vec2 vUv;

  void main() {
    vUv = uv;
    gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
  }
</script>

<!-- fragmentShader -->
<script id="js-fragment-shader" type="x-shader/x-fragment">
  precision mediump float;
  
  uniform float time;
  uniform float uCircleScale;
  uniform vec2 uViewport;
  uniform sampler2D uVideo;
  uniform sampler2D uImage;
  varying vec2 vUv;
  
  // 以下のサイトにあるavener.glslのノイズを使い、ノイズを生成する。
  // https://gist.github.com/akella/330b3caec2b68bb7f4534dae5918c0e9
  mat2 rot2d (in float angle) {
    return mat2(cos(angle), -sin(angle), sin(angle), cos(angle));
  }
  float r (in float a, in float b) { return fract(sin(dot(vec2(a,b),vec2(12.9898,78.233)))*43758.5453); }
  float h (in float a) { return fract(sin(dot(a,dot(12.9898,78.233)))*43758.5453); }

  float noise (in vec3 x) {
      vec3 p  = floor(x);
      vec3 f  = fract(x);
      f       = f*f*(3.0-2.0*f);
      float n = p.x + p.y*57.0 + 113.0*p.z;
      return mix(mix(mix( h(n+0.0), h(n+1.0),f.x),
                     mix( h(n+57.0), h(n+58.0),f.x),f.y),
                 mix(mix( h(n+113.0), h(n+114.0),f.x),
                     mix( h(n+170.0), h(n+171.0),f.x),f.y),f.z);
  }
  // http://www.iquilezles.org/www/articles/morenoise/morenoise.htm
  // http://www.pouet.net/topic.php?post=401468
  vec3 dnoise2f (in vec2 p) {
      float i = floor(p.x), j = floor(p.y);
      float u = p.x-i, v = p.y-j;
      float du = 30.*u*u*(u*(u-2.)+1.);
      float dv = 30.*v*v*(v*(v-2.)+1.);
      u=u*u*u*(u*(u*6.-15.)+10.);
      v=v*v*v*(v*(v*6.-15.)+10.);
      float a = r(i,     j    );
      float b = r(i+1.0, j    );
      float c = r.........完整代码请登录后点击上方下载按钮下载查看