three+webgl实现三维粒子组成的几何体表面摆动动画效果代码-html代码-BFW代码库

three+webgl实现三维粒子组成的几何体表面摆动动画效果代码

代码语言：html

所属分类：三维

代码描述：three+webgl实现三维粒子组成的几何体表面摆动动画效果代码

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

<!-- vertexShader -->
<script id="js-vertex-shader" type="x-shader/x-vertex">
  uniform float time;
  varying float vProgress;

  //	Classic Perlin 3D Noise 
  //	by Stefan Gustavson
  //
  vec4 permute(vec4 x){return mod(((x*34.0)+1.0)*x, 289.0);}
  vec4 taylorInvSqrt(vec4 r){return 1.79284291400159 - 0.85373472095314 * r;}
  vec4 fade(vec4 t) {return t*t*t*(t*(t*6.0-15.0)+10.0);}

  float cnoise(vec4 P){
    vec4 Pi0 = floor(P); // Integer part for indexing
    vec4 Pi1 = Pi0 + 1.0; // Integer part + 1
    Pi0 = mod(Pi0, 289.0);
    Pi1 = mod(Pi1, 289.0);
    vec4 Pf0 = fract(P); // Fractional part for interpolation
    vec4 Pf1 = Pf0 - 1.0; // Fractional part - 1.0
    vec4 ix = vec4(Pi0.x, Pi1.x, Pi0.x, Pi1.x);
    vec4 iy = vec4(Pi0.yy, Pi1.yy);
    vec4 iz0 = vec4(Pi0.zzzz);
    vec4 iz1 = vec4(Pi1.zzzz);
    vec4 iw0 = vec4(Pi0.wwww);
    vec4 iw1 = vec4(Pi1.wwww);

    vec4 ixy = permute(permute(ix) + iy);
    vec4 ixy0 = permute(ixy + iz0);
    vec4 ixy1 = permute(ixy + iz1);
    vec4 ixy00 = permute(ixy0 + iw0);
    vec4 ixy01 = permute(ixy0 + iw1);
    vec4 ixy10 = permute(ixy1 + iw0);
    vec4 ixy11 = permute(ixy1 + iw1);

    vec4 gx00 = ixy00 / 7.0;
    vec4 gy00 = floor(gx00) / 7.0;
    vec4 gz00 = floor(gy00) / 6.0;
    gx00 = fract(gx00) - 0.5;
    gy00 = fract(gy00) - 0.5;
    gz00 = fract(gz00) - 0.5;
    vec4 gw00 = vec4(0.75) - abs(gx00) - abs(gy00) - abs(gz00);
    vec4 sw00 = step(gw00, vec4(0.0));
    gx00 -= sw00 * (step(0.0, gx00) - 0.5);
    gy00 -= sw00 * (step(0.0, gy00) - 0.5);

    vec4 gx01 = ixy01 / 7.0;
    vec4 gy01 = floor(gx01) / 7.0;
    vec4 gz01 = floor(gy01) / 6.0;
    gx01 = fract(gx01) - 0.5;
    gy01 = fract(gy01) - 0.5;
    gz01 = fract(gz01) - 0.5;
    vec4 gw01 = vec4(0.75) - abs(gx01) - abs(gy01) - abs(gz01);
    vec4 sw01 = step(gw01, vec4(0.0));
    gx01 -= sw01 * (step(0.0, gx01) - 0.5);
    gy01 -= sw01 * (step(0.0, gy01) - 0.5);

    vec4 gx10 = ixy10 / 7.0;
    vec4 gy10 = floor(gx10) / 7.0;
    vec4 gz10 = floor(gy10) / 6.0;
    gx10 = fract(gx10) - 0.5;
    gy10 = fract(gy10) - 0.5;
    gz10 = fract(gz10) - 0.5;
    vec4 gw10 = vec4(0.75) - abs(gx10) - abs(gy10) - abs(gz10);
    vec4 sw10 = step(gw10, vec4(0.0));
    gx10 -= sw10 * (step(0.0, gx10) - 0.5);
    gy10 -= sw10 * (step(0.0, gy10) - 0.5);

    vec4 gx11 = ixy11 / 7.0;
    vec4 gy11 = floor(gx11) / 7.0;
    vec4 gz11 = floor(gy11) / 6.0;
    gx11 = fract(gx11) - 0.5;
    gy11 = fract(gy11) - 0.5;
    gz11 = fract(gz11) - 0.5;
    vec4 gw11 = vec4(0.75) - abs(gx11) - abs(gy11) - abs(gz11);
    vec4 sw11 = step(gw11, v.........完整代码请登录后点击上方下载按钮下载查看