webgl+three实现三维魔幻斑马火苗燃烧动画效果代码-html代码-BFW代码库

webgl+three实现三维魔幻斑马火苗燃烧动画效果代码

代码语言：html

所属分类：三维

代码描述：webgl+three实现三维魔幻斑马火苗燃烧动画效果代码

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">
  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 playhead;
  uniform float level;
  uniform float black;
  uniform sampler2D texture1;
  uniform sampler2D texture2;
  uniform vec4 resolution;
  varying vec2 vUv;
  varying vec4 vPosition;
  
  //	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);.........完整代码请登录后点击上方下载按钮下载查看