From 51e6c70fc8f47bd07501529dbb65f9f90c5d5dab Mon Sep 17 00:00:00 2001
From: Chinmay Pandhare <pandharechinmay882@gmail.com>
Date: Sun, 16 Jul 2017 15:39:38 +0530
Subject: [PATCH 1/5] Added FisheyeGl Module

---
 dist/image-sequencer.js                       | 419 +++++++++++++++++-
 src/AddStep.js                                |   1 +
 src/Modules.js                                |   3 +-
 src/modules/FisheyeGl/Module.js               |  49 ++
 src/modules/FisheyeGl/fisheyegl.js            | 295 ++++++++++++
 .../FisheyeGl/shaders/fragment3.glfs.js       |  37 ++
 src/modules/FisheyeGl/shaders/vertex.glvs.js  |  12 +
 7 files changed, 807 insertions(+), 9 deletions(-)
 create mode 100644 src/modules/FisheyeGl/Module.js
 create mode 100644 src/modules/FisheyeGl/fisheyegl.js
 create mode 100644 src/modules/FisheyeGl/shaders/fragment3.glfs.js
 create mode 100644 src/modules/FisheyeGl/shaders/vertex.glvs.js

diff --git a/dist/image-sequencer.js b/dist/image-sequencer.js
index d719f912..f2a07158 100644
--- a/dist/image-sequencer.js
+++ b/dist/image-sequencer.js
@@ -34570,6 +34570,7 @@ function AddStep(ref, image, name, o) {
     o.selector = o_.selector || 'ismod-' + name;
     o.container = o_.container || ref.options.selector;
     o.image = image;
+    o.inBrowser = ref.options.inBrowser;
 
     var module = ref.modules[name].call(ref.images,o);
     ref.images[image].steps.push(module);
@@ -35033,10 +35034,11 @@ module.exports = {
   'do-nothing-pix': require('./modules/DoNothingPix/Module.js'),
   'invert': require('./modules/Invert/Module'),
   'crop': require('./modules/Crop/Module'),
-  'segmented-colormap': require('./modules/SegmentedColormap/Module')
+  'segmented-colormap': require('./modules/SegmentedColormap/Module'),
+  'fisheye-gl': require('./modules/FisheyeGl/Module')
 }
 
-},{"./modules/Crop/Module":123,"./modules/DoNothing/Module":124,"./modules/DoNothingPix/Module.js":125,"./modules/GreenChannel/Module":126,"./modules/Invert/Module":127,"./modules/NdviRed/Module":128,"./modules/SegmentedColormap/Module":129}],120:[function(require,module,exports){
+},{"./modules/Crop/Module":123,"./modules/DoNothing/Module":124,"./modules/DoNothingPix/Module.js":125,"./modules/FisheyeGl/Module":126,"./modules/GreenChannel/Module":130,"./modules/Invert/Module":131,"./modules/NdviRed/Module":132,"./modules/SegmentedColormap/Module":133}],120:[function(require,module,exports){
 function ReplaceImage(ref,selector,steps,options) {
   if(!ref.options.inBrowser) return false; // This isn't for Node.js
   this_ = ref;
@@ -35257,7 +35259,408 @@ module.exports = function DoNothingPix(options) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":131}],126:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":135}],126:[function(require,module,exports){
+/*
+ * Creates Fisheye Effect
+ */
+module.exports = function DoNothing(options) {
+  options = options || {};
+  options.title = "Fisheye GL";
+  var output
+
+  function draw(input,callback) {
+    this_ = this;
+    if (!options.inBrowser) { // This module is only for browser
+      this.output = input;
+      callback();
+    }
+    else {
+
+      if (!document.querySelector('#image-sequencer-canvas')) {
+        var canvas = document.createElement('canvas');
+        canvas.style.display = "none";
+        canvas.setAttribute('id','image-sequencer-canvas');
+        document.body.append(canvas);
+      }
+
+      distorter = require('./fisheyegl.js')({
+        selector: "#image-sequencer-canvas"
+      });
+
+      distorter.lens.a = options.a || distorter.lens.a;
+      distorter.lens.b = options.b || distorter.lens.b;
+      distorter.lens.Fx = options.Fx || distorter.lens.Fx;
+      distorter.lens.Fy = options.Fy || distorter.lens.Fy;
+      distorter.lens.scale = options.scale || distorter.lens.scale;
+      distorter.fov.x = options.x || distorter.fov.x;
+      distorter.fov.y = options.y || distorter.fov.y;
+
+      distorter.setImage(input.src,function(){
+        this_.output = {src: canvas.toDataURL(), format: input.format};
+        callback();
+      });
+
+    }
+  }
+
+  return {
+    options: options,
+    draw: draw,
+    output: output
+  }
+}
+
+},{"./fisheyegl.js":127}],127:[function(require,module,exports){
+module.exports = function FisheyeGl (options){
+
+  // Defaults:
+  options = options || {};
+
+  options.width = options.width || 800;
+  options.height = options.height || 600;
+
+  var model = options.model || {
+    vertex :[
+      -1.0, -1.0, 0.0,
+       1.0, -1.0, 0.0,
+       1.0,  1.0, 0.0,
+      -1.0,  1.0, 0.0
+    ],
+    indices :[
+      0, 1, 2,
+      0, 2, 3,
+      2, 1, 0,
+      3, 2, 0
+    ],
+    textureCoords : [
+      0.0, 0.0,
+      1.0, 0.0,
+      1.0, 1.0,
+      0.0, 1.0
+    ]
+  };
+
+  var lens = options.lens || {
+    a : 1.0,
+    b : 1.0,
+    Fx : 0.0,
+    Fy : 0.0,
+    scale : 1.5
+  };
+  var fov = options.fov || {
+    x : 1.0,
+    y : 1.0
+  }
+  var image = options.image || "images/barrel-distortion.png";
+
+  var selector = options.selector || "#canvas";
+  var gl = getGLContext(selector);
+
+  var vertexSrc = require("./shaders/vertex.glvs");
+  var fragmentSrc = require("./shaders/fragment3.glfs");
+
+  var program = compileShader(gl, vertexSrc, fragmentSrc)
+  gl.useProgram(program);
+
+  var aVertexPosition = gl.getAttribLocation(program, "aVertexPosition");
+  var aTextureCoord = gl.getAttribLocation(program, "aTextureCoord");
+  var uSampler = gl.getUniformLocation(program, "uSampler");
+  var uLensS = gl.getUniformLocation(program, "uLensS");
+  var uLensF = gl.getUniformLocation(program, "uLensF");
+  var uFov = gl.getUniformLocation(program, "uFov");
+
+  var vertexBuffer,
+      indexBuffer,
+      textureBuffer;
+
+  function createBuffers() {
+
+    vertexBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.vertex), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
+
+    indexBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(model.indices), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
+
+    textureBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.textureCoords), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
+
+  }
+
+  createBuffers();
+
+  function getGLContext(selector){
+    var canvas = document.querySelector(selector);
+
+    if(canvas == null){
+      throw new Error("there is no canvas on this page");
+    }
+
+    var names = ["webgl", "experimental-webgl", "webkit-3d", "moz-webgl"];
+    for (var i = 0; i < names.length; ++i) {
+      var gl;
+      try {
+        gl = canvas.getContext(names[i], { preserveDrawingBuffer: true });
+      } catch(e) {
+        continue;
+      }
+      if (gl) return gl;
+    }
+
+    throw new Error("WebGL is not supported!");
+  }
+
+  function compileShader(gl, vertexSrc, fragmentSrc){
+    var vertexShader = gl.createShader(gl.VERTEX_SHADER);
+    gl.shaderSource(vertexShader, vertexSrc);
+    gl.compileShader(vertexShader);
+
+    _checkCompile(vertexShader);
+
+    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
+    gl.shaderSource(fragmentShader, fragmentSrc);
+    gl.compileShader(fragmentShader);
+
+    _checkCompile(fragmentShader);
+
+    var program = gl.createProgram();
+
+    gl.attachShader(program, vertexShader);
+    gl.attachShader(program, fragmentShader);
+
+    gl.linkProgram(program);
+
+    return program;
+
+    function _checkCompile(shader){
+      if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
+        throw new Error(gl.getShaderInfoLog(shader));
+      }
+    }
+  }
+
+  function loadFile(url, callback){
+    var ajax = new XMLHttpRequest();
+
+    if(callback) {
+      ajax.addEventListener("readystatechange", on)
+      ajax.open("GET", url, true);
+      ajax.send(null);
+    } else {
+      ajax.open("GET", url, false);
+      ajax.send(null);
+
+      if(ajax.status == 200){
+        return ajax.responseText;
+      }
+    }
+
+    function on(){
+      if(ajax.readyState === 4){
+        //complete requset
+        if(ajax.status === 200){
+          //not error
+          callback(null, ajax.responseText);
+        } else {
+          callback(new Error("fail to load!"));
+        }
+      }
+    }
+  }
+
+  function loadImage(gl, img, callback, texture){
+    texture = texture || gl.createTexture();
+
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img);
+
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); //gl.NEAREST is also allowed, instead of gl.LINEAR, as neither mipmap.
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); //Prevents s-coordinate wrapping (repeating).
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); //Prevents t-coordinate wrapping (repeating).
+    //gl.generateMipmap(gl.TEXTURE_2D);
+    gl.bindTexture(gl.TEXTURE_2D, null);
+
+    if(callback) callback(null, texture);
+    return texture;
+  }
+
+  function loadImageFromUrl(gl, url, callback){
+    var texture = gl.createTexture();
+    var img = new Image();
+    img.addEventListener("load", function onload(){
+      loadImage(gl, img, callback, texture);
+      options.width = img.width;
+      options.height = img.height;
+      resize(
+        options.width,
+        options.height
+      )
+    });
+    img.src = url;
+    return texture;
+  }
+
+  function run(animate, callback){
+    var f = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
+      window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
+
+    // ugh
+    if(animate === true){
+      if(f){
+        f(on);
+      } else {
+        throw new Error("do not support 'requestAnimationFram'");
+      }
+    } else {
+      f(on);
+    }
+
+    var current = null;
+    function on(t){
+      if(!current) current = t;
+      var dt = t - current;
+      current = t;
+      options.runner(dt);
+      if (callback) callback();
+      if (animate === true) f(on);
+    }
+  }
+
+  function resize(w, h) {
+    gl.viewport(0, 0, w, h);
+    gl.canvas.width = w;
+    gl.canvas.height = h;
+  }
+
+  options.runner = options.runner|| function runner(dt){
+
+    gl.clearColor(0.0, 0.0, 0.0, 1.0);
+    gl.enable(gl.DEPTH_TEST);
+
+    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+
+    gl.enableVertexAttribArray(aVertexPosition);
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+    gl.vertexAttribPointer(aVertexPosition, 3, gl.FLOAT, false, 0, 0);
+
+    gl.enableVertexAttribArray(aTextureCoord);
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
+    gl.vertexAttribPointer(aTextureCoord, 2, gl.FLOAT, false, 0, 0);
+
+    gl.activeTexture(gl.TEXTURE0);
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+    gl.uniform1i(uSampler, 0);
+
+    gl.uniform3fv(uLensS, [lens.a, lens.b, lens.scale]);
+    gl.uniform2fv(uLensF, [lens.Fx, lens.Fy]);
+    gl.uniform2fv(uFov, [fov.x, fov.y]);
+
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+    gl.drawElements(gl.TRIANGLES, model.indices.length, gl.UNSIGNED_SHORT, 0);
+
+  }
+
+  var texture;
+
+  function setImage(imageUrl, callback) {
+    texture = loadImageFromUrl(gl, imageUrl, function onImageLoad() {
+
+      run(options.animate, callback);
+
+    });
+  }
+
+  // setImage(image);
+
+  // asynchronous!
+  function getImage(format) {
+
+    var img = new Image();
+
+    img.src = gl.canvas.toDataURL(format || 'image/jpeg');
+
+    return img;
+
+  }
+
+  // external API:
+  var distorter = {
+    options:  options,
+    gl:       gl,
+    lens:     lens,
+    fov:      fov,
+    run:      run,
+    getImage: getImage,
+    setImage: setImage
+  }
+
+  return distorter;
+
+}
+
+},{"./shaders/fragment3.glfs":128,"./shaders/vertex.glvs":129}],128:[function(require,module,exports){
+module.exports = "#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+\n\
+uniform vec3 uLensS;\n\
+uniform vec2 uLensF;\n\
+uniform vec2 uFov;\n\
+\n\
+uniform sampler2D uSampler;\n\
+\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord  * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+\n\
+void main(void){\n\
+	float scale = uLensS.z;\n\
+	vec3 vPos = vPosition;\n\
+	float Fx = uLensF.x;\n\
+	float Fy = uLensF.y;\n\
+\n\
+	vec2 vMapping = vPos.xy;\n\
+	vMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\
+	vMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\
+	vMapping = vMapping * uLensS.xy;\n\
+\n\
+	vMapping = GLCoord2TextureCoord(vMapping/scale);\n\
+\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	}\n\
+	gl_FragColor = texture;\n\
+}\n\
+";
+
+},{}],129:[function(require,module,exports){
+module.exports = "#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+attribute vec3 aVertexPosition;\n\
+attribute vec2 aTextureCoord;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+void main(void){\n\
+	vPosition = aVertexPosition;\n\
+	vTextureCoord = aTextureCoord;\n\
+	gl_Position = vec4(vPosition,1.0);\n\
+}";
+
+},{}],130:[function(require,module,exports){
 /*
  * Display only the green channel
  */
@@ -35295,7 +35698,7 @@ module.exports = function GreenChannel(options) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":131}],127:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":135}],131:[function(require,module,exports){
 /*
  * Display only the green channel
  */
@@ -35333,7 +35736,7 @@ module.exports = function GreenChannel(options) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":131}],128:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":135}],132:[function(require,module,exports){
 /*
  * NDVI with red filter (blue channel is infrared)
  */
@@ -35368,7 +35771,7 @@ module.exports = function NdviRed(options) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":131}],129:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":135}],133:[function(require,module,exports){
 module.exports = function SegmentedColormap(options) {
 
   options = options || {};
@@ -35402,7 +35805,7 @@ module.exports = function SegmentedColormap(options) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":131,"./SegmentedColormap":130}],130:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":135,"./SegmentedColormap":134}],134:[function(require,module,exports){
 /*
  * Accepts a normalized ndvi and returns the new color-mapped pixel
  */
@@ -35461,7 +35864,7 @@ var colormaps = {
   fastie: fastie_colormap
 }
 
-},{}],131:[function(require,module,exports){
+},{}],135:[function(require,module,exports){
 /*
  * General purpose per-pixel manipulation
  * accepting a changePixel() method to remix a pixel's channels
diff --git a/src/AddStep.js b/src/AddStep.js
index c28dca97..26a8240d 100644
--- a/src/AddStep.js
+++ b/src/AddStep.js
@@ -9,6 +9,7 @@ function AddStep(ref, image, name, o) {
     o.selector = o_.selector || 'ismod-' + name;
     o.container = o_.container || ref.options.selector;
     o.image = image;
+    o.inBrowser = ref.options.inBrowser;
 
     var module = ref.modules[name].call(ref.images,o);
     ref.images[image].steps.push(module);
diff --git a/src/Modules.js b/src/Modules.js
index 3c5df5ba..43934707 100644
--- a/src/Modules.js
+++ b/src/Modules.js
@@ -8,5 +8,6 @@ module.exports = {
   'do-nothing-pix': require('./modules/DoNothingPix/Module.js'),
   'invert': require('./modules/Invert/Module'),
   'crop': require('./modules/Crop/Module'),
-  'segmented-colormap': require('./modules/SegmentedColormap/Module')
+  'segmented-colormap': require('./modules/SegmentedColormap/Module'),
+  'fisheye-gl': require('./modules/FisheyeGl/Module')
 }
diff --git a/src/modules/FisheyeGl/Module.js b/src/modules/FisheyeGl/Module.js
new file mode 100644
index 00000000..3c54aa86
--- /dev/null
+++ b/src/modules/FisheyeGl/Module.js
@@ -0,0 +1,49 @@
+/*
+ * Creates Fisheye Effect
+ */
+module.exports = function DoNothing(options) {
+  options = options || {};
+  options.title = "Fisheye GL";
+  var output
+
+  function draw(input,callback) {
+    this_ = this;
+    if (!options.inBrowser) { // This module is only for browser
+      this.output = input;
+      callback();
+    }
+    else {
+
+      if (!document.querySelector('#image-sequencer-canvas')) {
+        var canvas = document.createElement('canvas');
+        canvas.style.display = "none";
+        canvas.setAttribute('id','image-sequencer-canvas');
+        document.body.append(canvas);
+      }
+
+      distorter = require('./fisheyegl.js')({
+        selector: "#image-sequencer-canvas"
+      });
+
+      distorter.lens.a = options.a || distorter.lens.a;
+      distorter.lens.b = options.b || distorter.lens.b;
+      distorter.lens.Fx = options.Fx || distorter.lens.Fx;
+      distorter.lens.Fy = options.Fy || distorter.lens.Fy;
+      distorter.lens.scale = options.scale || distorter.lens.scale;
+      distorter.fov.x = options.x || distorter.fov.x;
+      distorter.fov.y = options.y || distorter.fov.y;
+
+      distorter.setImage(input.src,function(){
+        this_.output = {src: canvas.toDataURL(), format: input.format};
+        callback();
+      });
+
+    }
+  }
+
+  return {
+    options: options,
+    draw: draw,
+    output: output
+  }
+}
diff --git a/src/modules/FisheyeGl/fisheyegl.js b/src/modules/FisheyeGl/fisheyegl.js
new file mode 100644
index 00000000..312dae34
--- /dev/null
+++ b/src/modules/FisheyeGl/fisheyegl.js
@@ -0,0 +1,295 @@
+module.exports = function FisheyeGl (options){
+
+  // Defaults:
+  options = options || {};
+
+  options.width = options.width || 800;
+  options.height = options.height || 600;
+
+  var model = options.model || {
+    vertex :[
+      -1.0, -1.0, 0.0,
+       1.0, -1.0, 0.0,
+       1.0,  1.0, 0.0,
+      -1.0,  1.0, 0.0
+    ],
+    indices :[
+      0, 1, 2,
+      0, 2, 3,
+      2, 1, 0,
+      3, 2, 0
+    ],
+    textureCoords : [
+      0.0, 0.0,
+      1.0, 0.0,
+      1.0, 1.0,
+      0.0, 1.0
+    ]
+  };
+
+  var lens = options.lens || {
+    a : 1.0,
+    b : 1.0,
+    Fx : 0.0,
+    Fy : 0.0,
+    scale : 1.5
+  };
+  var fov = options.fov || {
+    x : 1.0,
+    y : 1.0
+  }
+  var image = options.image || "images/barrel-distortion.png";
+
+  var selector = options.selector || "#canvas";
+  var gl = getGLContext(selector);
+
+  var vertexSrc = require("./shaders/vertex.glvs");
+  var fragmentSrc = require("./shaders/fragment3.glfs");
+
+  var program = compileShader(gl, vertexSrc, fragmentSrc)
+  gl.useProgram(program);
+
+  var aVertexPosition = gl.getAttribLocation(program, "aVertexPosition");
+  var aTextureCoord = gl.getAttribLocation(program, "aTextureCoord");
+  var uSampler = gl.getUniformLocation(program, "uSampler");
+  var uLensS = gl.getUniformLocation(program, "uLensS");
+  var uLensF = gl.getUniformLocation(program, "uLensF");
+  var uFov = gl.getUniformLocation(program, "uFov");
+
+  var vertexBuffer,
+      indexBuffer,
+      textureBuffer;
+
+  function createBuffers() {
+
+    vertexBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.vertex), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
+
+    indexBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(model.indices), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
+
+    textureBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.textureCoords), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
+
+  }
+
+  createBuffers();
+
+  function getGLContext(selector){
+    var canvas = document.querySelector(selector);
+
+    if(canvas == null){
+      throw new Error("there is no canvas on this page");
+    }
+
+    var names = ["webgl", "experimental-webgl", "webkit-3d", "moz-webgl"];
+    for (var i = 0; i < names.length; ++i) {
+      var gl;
+      try {
+        gl = canvas.getContext(names[i], { preserveDrawingBuffer: true });
+      } catch(e) {
+        continue;
+      }
+      if (gl) return gl;
+    }
+
+    throw new Error("WebGL is not supported!");
+  }
+
+  function compileShader(gl, vertexSrc, fragmentSrc){
+    var vertexShader = gl.createShader(gl.VERTEX_SHADER);
+    gl.shaderSource(vertexShader, vertexSrc);
+    gl.compileShader(vertexShader);
+
+    _checkCompile(vertexShader);
+
+    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
+    gl.shaderSource(fragmentShader, fragmentSrc);
+    gl.compileShader(fragmentShader);
+
+    _checkCompile(fragmentShader);
+
+    var program = gl.createProgram();
+
+    gl.attachShader(program, vertexShader);
+    gl.attachShader(program, fragmentShader);
+
+    gl.linkProgram(program);
+
+    return program;
+
+    function _checkCompile(shader){
+      if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
+        throw new Error(gl.getShaderInfoLog(shader));
+      }
+    }
+  }
+
+  function loadFile(url, callback){
+    var ajax = new XMLHttpRequest();
+
+    if(callback) {
+      ajax.addEventListener("readystatechange", on)
+      ajax.open("GET", url, true);
+      ajax.send(null);
+    } else {
+      ajax.open("GET", url, false);
+      ajax.send(null);
+
+      if(ajax.status == 200){
+        return ajax.responseText;
+      }
+    }
+
+    function on(){
+      if(ajax.readyState === 4){
+        //complete requset
+        if(ajax.status === 200){
+          //not error
+          callback(null, ajax.responseText);
+        } else {
+          callback(new Error("fail to load!"));
+        }
+      }
+    }
+  }
+
+  function loadImage(gl, img, callback, texture){
+    texture = texture || gl.createTexture();
+
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img);
+
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); //gl.NEAREST is also allowed, instead of gl.LINEAR, as neither mipmap.
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); //Prevents s-coordinate wrapping (repeating).
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); //Prevents t-coordinate wrapping (repeating).
+    //gl.generateMipmap(gl.TEXTURE_2D);
+    gl.bindTexture(gl.TEXTURE_2D, null);
+
+    if(callback) callback(null, texture);
+    return texture;
+  }
+
+  function loadImageFromUrl(gl, url, callback){
+    var texture = gl.createTexture();
+    var img = new Image();
+    img.addEventListener("load", function onload(){
+      loadImage(gl, img, callback, texture);
+      options.width = img.width;
+      options.height = img.height;
+      resize(
+        options.width,
+        options.height
+      )
+    });
+    img.src = url;
+    return texture;
+  }
+
+  function run(animate, callback){
+    var f = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
+      window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
+
+    // ugh
+    if(animate === true){
+      if(f){
+        f(on);
+      } else {
+        throw new Error("do not support 'requestAnimationFram'");
+      }
+    } else {
+      f(on);
+    }
+
+    var current = null;
+    function on(t){
+      if(!current) current = t;
+      var dt = t - current;
+      current = t;
+      options.runner(dt);
+      if (callback) callback();
+      if (animate === true) f(on);
+    }
+  }
+
+  function resize(w, h) {
+    gl.viewport(0, 0, w, h);
+    gl.canvas.width = w;
+    gl.canvas.height = h;
+  }
+
+  options.runner = options.runner|| function runner(dt){
+
+    gl.clearColor(0.0, 0.0, 0.0, 1.0);
+    gl.enable(gl.DEPTH_TEST);
+
+    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+
+    gl.enableVertexAttribArray(aVertexPosition);
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+    gl.vertexAttribPointer(aVertexPosition, 3, gl.FLOAT, false, 0, 0);
+
+    gl.enableVertexAttribArray(aTextureCoord);
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
+    gl.vertexAttribPointer(aTextureCoord, 2, gl.FLOAT, false, 0, 0);
+
+    gl.activeTexture(gl.TEXTURE0);
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+    gl.uniform1i(uSampler, 0);
+
+    gl.uniform3fv(uLensS, [lens.a, lens.b, lens.scale]);
+    gl.uniform2fv(uLensF, [lens.Fx, lens.Fy]);
+    gl.uniform2fv(uFov, [fov.x, fov.y]);
+
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+    gl.drawElements(gl.TRIANGLES, model.indices.length, gl.UNSIGNED_SHORT, 0);
+
+  }
+
+  var texture;
+
+  function setImage(imageUrl, callback) {
+    texture = loadImageFromUrl(gl, imageUrl, function onImageLoad() {
+
+      run(options.animate, callback);
+
+    });
+  }
+
+  // setImage(image);
+
+  // asynchronous!
+  function getImage(format) {
+
+    var img = new Image();
+
+    img.src = gl.canvas.toDataURL(format || 'image/jpeg');
+
+    return img;
+
+  }
+
+  // external API:
+  var distorter = {
+    options:  options,
+    gl:       gl,
+    lens:     lens,
+    fov:      fov,
+    run:      run,
+    getImage: getImage,
+    setImage: setImage
+  }
+
+  return distorter;
+
+}
diff --git a/src/modules/FisheyeGl/shaders/fragment3.glfs.js b/src/modules/FisheyeGl/shaders/fragment3.glfs.js
new file mode 100644
index 00000000..c4dbaa1c
--- /dev/null
+++ b/src/modules/FisheyeGl/shaders/fragment3.glfs.js
@@ -0,0 +1,37 @@
+module.exports = "#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+\n\
+uniform vec3 uLensS;\n\
+uniform vec2 uLensF;\n\
+uniform vec2 uFov;\n\
+\n\
+uniform sampler2D uSampler;\n\
+\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord  * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+\n\
+void main(void){\n\
+	float scale = uLensS.z;\n\
+	vec3 vPos = vPosition;\n\
+	float Fx = uLensF.x;\n\
+	float Fy = uLensF.y;\n\
+\n\
+	vec2 vMapping = vPos.xy;\n\
+	vMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\
+	vMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\
+	vMapping = vMapping * uLensS.xy;\n\
+\n\
+	vMapping = GLCoord2TextureCoord(vMapping/scale);\n\
+\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	}\n\
+	gl_FragColor = texture;\n\
+}\n\
+";
diff --git a/src/modules/FisheyeGl/shaders/vertex.glvs.js b/src/modules/FisheyeGl/shaders/vertex.glvs.js
new file mode 100644
index 00000000..6020db1a
--- /dev/null
+++ b/src/modules/FisheyeGl/shaders/vertex.glvs.js
@@ -0,0 +1,12 @@
+module.exports = "#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+attribute vec3 aVertexPosition;\n\
+attribute vec2 aTextureCoord;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+void main(void){\n\
+	vPosition = aVertexPosition;\n\
+	vTextureCoord = aTextureCoord;\n\
+	gl_Position = vec4(vPosition,1.0);\n\
+}";

From 09c0a180ec31e8742ef5af835ac7f433077e72a8 Mon Sep 17 00:00:00 2001
From: Chinmay Pandhare <pandharechinmay882@gmail.com>
Date: Sun, 16 Jul 2017 16:51:28 +0530
Subject: [PATCH 2/5] Added Documentation for FisheyeGl

---
 docs/MODULES.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/docs/MODULES.md b/docs/MODULES.md
index ba0f6517..a1cbd3d1 100644
--- a/docs/MODULES.md
+++ b/docs/MODULES.md
@@ -47,3 +47,24 @@ where `options` is an object with the property `colormap`. `options.colormap` ca
 * "fastie" : [[0, [255, 255, 255], [0, 0, 0]], [0.167, [0, 0, 0], [255, 255, 255]], [0.33, [255, 255, 255], [0, 0, 0]], [0.5, [0, 0, 0], [140, 140, 255]], [0.55, [140, 140, 255], [0, 255, 0]], [0.63, [0, 255, 0], [255, 255, 0]], [0.75, [255, 255, 0], [255, 0, 0]], [0.95, [255, 0, 0], [255, 0, 255]]]
 
 * A custom array.
+
+## FisheyeGl (fisheye-gl)
+
+This module is used for correcting Fisheye or Lens Distortion
+
+#### Usage
+
+```js
+  sequencer.loadImage('PATH')
+           .addSteps('fisheye-gl',options)
+           .run()
+```
+
+where `options` is an object with the following properties:
+* a : a correction (0 to 4; default 1)
+* b : b correction (0 to 4; default 1)
+* Fx : x correction (0 to 4; default 1)
+* Fy : y correction (0 to 4; default 1)
+* scale : The ratio to which the original image is to be scaled (0 to 20; default 1.5)
+* x : Field of View x (0 to 2; default 1)
+* y : Field of View y (0 to 2; default 1)

From 52e8e652c38bec4ebd17ee4e9b522af91da624bd Mon Sep 17 00:00:00 2001
From: Chinmay Pandhare <pandharechinmay882@gmail.com>
Date: Mon, 17 Jul 2017 12:07:33 +0530
Subject: [PATCH 3/5] Bugfix

---
 src/modules/FisheyeGl/Module.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/modules/FisheyeGl/Module.js b/src/modules/FisheyeGl/Module.js
index 3c54aa86..0dea4098 100644
--- a/src/modules/FisheyeGl/Module.js
+++ b/src/modules/FisheyeGl/Module.js
@@ -20,6 +20,7 @@ module.exports = function DoNothing(options) {
         canvas.setAttribute('id','image-sequencer-canvas');
         document.body.append(canvas);
       }
+      else var canvas = document.querySelector('#image-sequencer-canvas');
 
       distorter = require('./fisheyegl.js')({
         selector: "#image-sequencer-canvas"

From a74f67ef069eb5dcf4a10dc2c76ed00bfab13788 Mon Sep 17 00:00:00 2001
From: Chinmay Pandhare <pandharechinmay882@gmail.com>
Date: Mon, 17 Jul 2017 16:00:32 +0530
Subject: [PATCH 4/5] Built for Browser

---
 dist/image-sequencer.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dist/image-sequencer.js b/dist/image-sequencer.js
index f2a07158..a2cbb25b 100644
--- a/dist/image-sequencer.js
+++ b/dist/image-sequencer.js
@@ -35282,6 +35282,7 @@ module.exports = function DoNothing(options) {
         canvas.setAttribute('id','image-sequencer-canvas');
         document.body.append(canvas);
       }
+      else var canvas = document.querySelector('#image-sequencer-canvas');
 
       distorter = require('./fisheyegl.js')({
         selector: "#image-sequencer-canvas"

From 61bd95355b898cdf9be487255aa91f643fb889d8 Mon Sep 17 00:00:00 2001
From: Chinmay Pandhare <pandharechinmay882@gmail.com>
Date: Sat, 29 Jul 2017 04:08:28 +0530
Subject: [PATCH 5/5] Use 'fisheyegl' from npm

---
 dist/image-sequencer.js                       | 1116 +++++++++--------
 package.json                                  |    1 +
 src/modules/FisheyeGl/Module.js               |    6 +-
 src/modules/FisheyeGl/fisheyegl.js            |  295 -----
 .../FisheyeGl/shaders/fragment3.glfs.js       |   37 -
 src/modules/FisheyeGl/shaders/vertex.glvs.js  |   12 -
 6 files changed, 617 insertions(+), 850 deletions(-)
 delete mode 100644 src/modules/FisheyeGl/fisheyegl.js
 delete mode 100644 src/modules/FisheyeGl/shaders/fragment3.glfs.js
 delete mode 100644 src/modules/FisheyeGl/shaders/vertex.glvs.js

diff --git a/dist/image-sequencer.js b/dist/image-sequencer.js
index 2dc84ff5..51f22ef6 100644
--- a/dist/image-sequencer.js
+++ b/dist/image-sequencer.js
@@ -359,7 +359,7 @@ var objectKeys = Object.keys || function (obj) {
   return keys;
 };
 
-},{"util/":110}],2:[function(require,module,exports){
+},{"util/":118}],2:[function(require,module,exports){
 'use strict'
 
 exports.byteLength = byteLength
@@ -717,7 +717,7 @@ Zlib.prototype._error = function(status) {
 exports.Zlib = Zlib;
 
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"_process":83,"buffer":7,"pako/lib/zlib/constants":51,"pako/lib/zlib/deflate.js":53,"pako/lib/zlib/inflate.js":55,"pako/lib/zlib/messages":57,"pako/lib/zlib/zstream":59}],5:[function(require,module,exports){
+},{"_process":91,"buffer":7,"pako/lib/zlib/constants":59,"pako/lib/zlib/deflate.js":61,"pako/lib/zlib/inflate.js":63,"pako/lib/zlib/messages":65,"pako/lib/zlib/zstream":67}],5:[function(require,module,exports){
 (function (process,Buffer){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -1331,7 +1331,7 @@ util.inherits(InflateRaw, Zlib);
 util.inherits(Unzip, Zlib);
 
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"./binding":4,"_process":83,"_stream_transform":95,"assert":1,"buffer":7,"util":110}],6:[function(require,module,exports){
+},{"./binding":4,"_process":91,"_stream_transform":103,"assert":1,"buffer":7,"util":118}],6:[function(require,module,exports){
 arguments[4][3][0].apply(exports,arguments)
 },{"dup":3}],7:[function(require,module,exports){
 (function (global){
@@ -3126,7 +3126,7 @@ function isnan (val) {
 }
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"base64-js":2,"ieee754":36,"isarray":8}],8:[function(require,module,exports){
+},{"base64-js":2,"ieee754":44,"isarray":8}],8:[function(require,module,exports){
 var toString = {}.toString;
 
 module.exports = Array.isArray || function (arr) {
@@ -3182,7 +3182,7 @@ ContentStream.prototype._read = function (n) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7,"readable-stream":16,"util":110}],10:[function(require,module,exports){
+},{"buffer":7,"readable-stream":16,"util":118}],10:[function(require,module,exports){
 module.exports = Array.isArray || function (arr) {
   return Object.prototype.toString.call(arr) == '[object Array]';
 };
@@ -3280,7 +3280,7 @@ function forEach (xs, f) {
 }
 
 }).call(this,require('_process'))
-},{"./_stream_readable":13,"./_stream_writable":15,"_process":83,"core-util-is":18,"inherits":37}],12:[function(require,module,exports){
+},{"./_stream_readable":13,"./_stream_writable":15,"_process":91,"core-util-is":18,"inherits":45}],12:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -3328,7 +3328,7 @@ PassThrough.prototype._transform = function(chunk, encoding, cb) {
   cb(null, chunk);
 };
 
-},{"./_stream_transform":14,"core-util-is":18,"inherits":37}],13:[function(require,module,exports){
+},{"./_stream_transform":14,"core-util-is":18,"inherits":45}],13:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -4314,7 +4314,7 @@ function indexOf (xs, x) {
 }
 
 }).call(this,require('_process'))
-},{"_process":83,"buffer":7,"core-util-is":18,"events":23,"inherits":37,"isarray":10,"stream":102,"string_decoder/":17}],14:[function(require,module,exports){
+},{"_process":91,"buffer":7,"core-util-is":18,"events":23,"inherits":45,"isarray":10,"stream":110,"string_decoder/":17}],14:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -4526,7 +4526,7 @@ function done(stream, er) {
   return stream.push(null);
 }
 
-},{"./_stream_duplex":11,"core-util-is":18,"inherits":37}],15:[function(require,module,exports){
+},{"./_stream_duplex":11,"core-util-is":18,"inherits":45}],15:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -4916,7 +4916,7 @@ function endWritable(stream, state, cb) {
 }
 
 }).call(this,require('_process'))
-},{"./_stream_duplex":11,"_process":83,"buffer":7,"core-util-is":18,"inherits":37,"stream":102}],16:[function(require,module,exports){
+},{"./_stream_duplex":11,"_process":91,"buffer":7,"core-util-is":18,"inherits":45,"stream":110}],16:[function(require,module,exports){
 (function (process){
 var Stream = require('stream'); // hack to fix a circular dependency issue when used with browserify
 exports = module.exports = require('./lib/_stream_readable.js');
@@ -4931,7 +4931,7 @@ if (!process.browser && process.env.READABLE_STREAM === 'disable') {
 }
 
 }).call(this,require('_process'))
-},{"./lib/_stream_duplex.js":11,"./lib/_stream_passthrough.js":12,"./lib/_stream_readable.js":13,"./lib/_stream_transform.js":14,"./lib/_stream_writable.js":15,"_process":83,"stream":102}],17:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":11,"./lib/_stream_passthrough.js":12,"./lib/_stream_readable.js":13,"./lib/_stream_transform.js":14,"./lib/_stream_writable.js":15,"_process":91,"stream":110}],17:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -5265,7 +5265,7 @@ function objectToString(o) {
 }
 
 }).call(this,{"isBuffer":require("../../is-buffer/index.js")})
-},{"../../is-buffer/index.js":39}],19:[function(require,module,exports){
+},{"../../is-buffer/index.js":47}],19:[function(require,module,exports){
 "use strict"
 
 var createThunk = require("./lib/thunk.js")
@@ -5736,7 +5736,7 @@ function generateCWiseOp(proc, typesig) {
 }
 module.exports = generateCWiseOp
 
-},{"uniq":105}],21:[function(require,module,exports){
+},{"uniq":113}],21:[function(require,module,exports){
 "use strict"
 
 // The function below is called when constructing a cwise function object, and does the following:
@@ -6187,6 +6187,495 @@ function isUndefined(arg) {
 }
 
 },{}],24:[function(require,module,exports){
+var FisheyeGl = function FisheyeGl(options){
+
+  // Defaults:
+  options = options || {};
+
+  options.width = options.width || 800;
+  options.height = options.height || 600;
+
+  var model = options.model || {
+    vertex :[
+      -1.0, -1.0, 0.0,
+       1.0, -1.0, 0.0,
+       1.0,  1.0, 0.0,
+      -1.0,  1.0, 0.0
+    ],
+    indices :[
+      0, 1, 2,
+      0, 2, 3,
+      2, 1, 0,
+      3, 2, 0
+    ],
+    textureCoords : [
+      0.0, 0.0,
+      1.0, 0.0,
+      1.0, 1.0,
+      0.0, 1.0
+    ]
+  };
+
+  var lens = options.lens || {
+    a : 1.0,
+    b : 1.0,
+    Fx : 0.0,
+    Fy : 0.0,
+    scale : 1.5
+  };
+  var fov = options.fov || {
+    x : 1.0,
+    y : 1.0
+  }
+  var image = options.image || "images/barrel-distortion.png";
+
+  var selector = options.selector || "#canvas";
+  var gl = getGLContext(selector);
+
+  var shaders = require('./shaders');
+
+  var vertexSrc = loadFile(options.vertexSrc || "vertex");
+  var fragmentSrc = loadFile(options.fragmentSrc || "fragment3");
+
+  var program = compileShader(gl, vertexSrc, fragmentSrc)
+  gl.useProgram(program);
+
+  var aVertexPosition = gl.getAttribLocation(program, "aVertexPosition");
+  var aTextureCoord = gl.getAttribLocation(program, "aTextureCoord");
+  var uSampler = gl.getUniformLocation(program, "uSampler");
+  var uLensS = gl.getUniformLocation(program, "uLensS");
+  var uLensF = gl.getUniformLocation(program, "uLensF");
+  var uFov = gl.getUniformLocation(program, "uFov");
+
+  var vertexBuffer,
+      indexBuffer,
+      textureBuffer;
+
+  function createBuffers() {
+
+    vertexBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.vertex), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
+
+    indexBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(model.indices), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
+
+    textureBuffer = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.textureCoords), gl.STATIC_DRAW);
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
+
+  }
+
+  createBuffers();
+
+  function getGLContext(selector){
+    var canvas = document.querySelector(selector);
+
+    if(canvas == null){
+      throw new Error("there is no canvas on this page");
+    }
+
+    var names = ["webgl", "experimental-webgl", "webkit-3d", "moz-webgl"];
+    for (var i = 0; i < names.length; ++i) {
+      var gl;
+      try {
+        gl = canvas.getContext(names[i], { preserveDrawingBuffer: true });
+      } catch(e) {
+        continue;
+      }
+      if (gl) return gl;
+    }
+
+    throw new Error("WebGL is not supported!");
+  }
+
+  function compileShader(gl, vertexSrc, fragmentSrc){
+    var vertexShader = gl.createShader(gl.VERTEX_SHADER);
+    gl.shaderSource(vertexShader, vertexSrc);
+    gl.compileShader(vertexShader);
+
+    _checkCompile(vertexShader);
+
+    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
+    gl.shaderSource(fragmentShader, fragmentSrc);
+    gl.compileShader(fragmentShader);
+
+    _checkCompile(fragmentShader);
+
+    var program = gl.createProgram();
+
+    gl.attachShader(program, vertexShader);
+    gl.attachShader(program, fragmentShader);
+
+    gl.linkProgram(program);
+
+    return program;
+
+    function _checkCompile(shader){
+      if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
+        throw new Error(gl.getShaderInfoLog(shader));
+      }
+    }
+  }
+
+  function loadFile(url, callback){
+
+    if(shaders.hasOwnProperty(url)) {
+      return shaders[url];
+    }
+
+    var ajax = new XMLHttpRequest();
+
+    if(callback) {
+      ajax.addEventListener("readystatechange", on)
+      ajax.open("GET", url, true);
+      ajax.send(null);
+    } else {
+      ajax.open("GET", url, false);
+      ajax.send(null);
+
+      if(ajax.status == 200){
+        return ajax.responseText;
+      }
+    }
+
+    function on(){
+      if(ajax.readyState === 4){
+        //complete requset
+        if(ajax.status === 200){
+          //not error
+          callback(null, ajax.responseText);
+        } else {
+          callback(new Error("fail to load!"));
+        }
+      }
+    }
+  }
+
+  function loadImage(gl, img, callback, texture){
+    texture = texture || gl.createTexture();
+
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img);
+
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); //gl.NEAREST is also allowed, instead of gl.LINEAR, as neither mipmap.
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); //Prevents s-coordinate wrapping (repeating).
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); //Prevents t-coordinate wrapping (repeating).
+    //gl.generateMipmap(gl.TEXTURE_2D);
+    gl.bindTexture(gl.TEXTURE_2D, null);
+
+    if(callback) callback(null, texture);
+    return texture;
+  }
+
+  function loadImageFromUrl(gl, url, callback){
+    var texture = gl.createTexture();
+    var img = new Image();
+    img.addEventListener("load", function onload(){
+      loadImage(gl, img, callback, texture);
+      options.width = img.width;
+      options.height = img.height;
+      resize(
+        options.width,
+        options.height
+      )
+    });
+    img.src = url;
+    return texture;
+  }
+
+  function run(animate, callback){
+    var f = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
+      window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
+
+    // ugh
+    if(animate === true){
+      if(f){
+        f(on);
+      } else {
+        throw new Error("do not support 'requestAnimationFram'");
+      }
+    } else {
+      f(on);
+    }
+
+    var current = null;
+    function on(t){
+      if(!current) current = t;
+      var dt = t - current;
+      current = t;
+      options.runner(dt);
+      if (callback) callback();
+      if (animate === true) f(on);
+    }
+  }
+
+  function resize(w, h) {
+    gl.viewport(0, 0, w, h);
+    gl.canvas.width = w;
+    gl.canvas.height = h;
+  }
+
+  options.runner = options.runner|| function runner(dt){
+
+    gl.clearColor(0.0, 0.0, 0.0, 1.0);
+    gl.enable(gl.DEPTH_TEST);
+
+    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+
+    gl.enableVertexAttribArray(aVertexPosition);
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
+    gl.vertexAttribPointer(aVertexPosition, 3, gl.FLOAT, false, 0, 0);
+
+    gl.enableVertexAttribArray(aTextureCoord);
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
+    gl.vertexAttribPointer(aTextureCoord, 2, gl.FLOAT, false, 0, 0);
+
+    gl.activeTexture(gl.TEXTURE0);
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+    gl.uniform1i(uSampler, 0);
+
+    gl.uniform3fv(uLensS, [lens.a, lens.b, lens.scale]);
+    gl.uniform2fv(uLensF, [lens.Fx, lens.Fy]);
+    gl.uniform2fv(uFov, [fov.x, fov.y]);
+
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
+    gl.drawElements(gl.TRIANGLES, model.indices.length, gl.UNSIGNED_SHORT, 0);
+  }
+
+  var texture;
+
+  function setImage(imageUrl, callback) {
+    texture = loadImageFromUrl(gl, imageUrl, function onImageLoad() {
+
+      run(options.animate, callback);
+
+    });
+  }
+
+  setImage(image);
+
+  // asynchronous!
+  function getImage(format) {
+
+    var img = new Image();
+
+    img.src = gl.canvas.toDataURL(format || 'image/jpeg');
+
+    return img;
+
+  }
+
+  // external API:
+  var distorter = {
+    options:  options,
+    gl:       gl,
+    lens:     lens,
+    fov:      fov,
+    run:      run,
+    getImage: getImage,
+    setImage: setImage
+  }
+
+  return distorter;
+
+}
+
+if (typeof(document) != 'undefined')
+  window.FisheyeGl = FisheyeGl;
+else
+  module.exports = FisheyeGl;
+
+},{"./shaders":25}],25:[function(require,module,exports){
+module.exports = {
+  fragment: require('./shaders/fragment.glfs'),
+  fragment2: require('./shaders/fragment2.glfs'),
+  fragment3: require('./shaders/fragment3.glfs'),
+  method1: require('./shaders/method1.glfs'),
+  method2: require('./shaders/method2.glfs'),
+  vertex: require('./shaders/vertex.glvs')
+};
+
+},{"./shaders/fragment.glfs":26,"./shaders/fragment2.glfs":27,"./shaders/fragment3.glfs":28,"./shaders/method1.glfs":29,"./shaders/method2.glfs":30,"./shaders/vertex.glvs":31}],26:[function(require,module,exports){
+module.exports = "\
+#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+uniform vec4 uLens;\n\
+uniform vec2 uFov;\n\
+uniform sampler2D uSampler;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord  * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+void main(void){\n\
+	float scale = uLens.w;\n\
+	float F = uLens.z;\n\
+	\n\
+	float L = length(vec3(vPosition.xy/scale, F));\n\
+	vec2 vMapping = vPosition.xy * F / L;\n\
+	vMapping = vMapping * uLens.xy;\n\
+	vMapping = GLCoord2TextureCoord(vMapping/scale);\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	} \n\
+	gl_FragColor = texture;\n\
+}\n\
+";
+},{}],27:[function(require,module,exports){
+module.exports = "\
+#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+uniform vec4 uLens;\n\
+uniform vec2 uFov;\n\
+uniform sampler2D uSampler;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+vec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\
+	return (textureCoord - vec2(0.5, 0.5)) * 2.0;\n\
+}\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord / 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+void main(void){\n\
+	float correctionRadius = 0.5;\n\
+	float distance = sqrt(vPosition.x * vPosition.x + vPosition.y * vPosition.y) / correctionRadius;\n\
+	float theta = 1.0;\n\
+	if(distance != 0.0){\n\
+		theta = atan(distance);\n\
+	}\n\
+	vec2 vMapping = theta * vPosition.xy;\n\
+	vMapping = GLCoord2TextureCoord(vMapping);\n\
+		\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	} \n\
+	gl_FragColor = texture;\n\
+}\n\
+";
+},{}],28:[function(require,module,exports){
+module.exports = "\
+#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+uniform vec3 uLensS;\n\
+uniform vec2 uLensF;\n\
+uniform vec2 uFov;\n\
+uniform sampler2D uSampler;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord  * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+void main(void){\n\
+	float scale = uLensS.z;\n\
+	vec3 vPos = vPosition;\n\
+	float Fx = uLensF.x;\n\
+	float Fy = uLensF.y;\n\
+	vec2 vMapping = vPos.xy;\n\
+	vMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\
+	vMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\
+	vMapping = vMapping * uLensS.xy;\n\
+	vMapping = GLCoord2TextureCoord(vMapping/scale);\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	}\n\
+	gl_FragColor = texture;\n\
+}\n\
+";
+},{}],29:[function(require,module,exports){
+module.exports = "\
+#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+uniform vec4 uLens;\n\
+uniform vec2 uFov;\n\
+uniform sampler2D uSampler;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+vec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\
+	return (textureCoord - vec2(0.5, 0.5)) * 2.0;\n\
+}\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord / 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+void main(void){\n\
+	vec2 vMapping = vec2(vTextureCoord.x, 1.0 - vTextureCoord.y);\n\
+	vMapping = TextureCoord2GLCoord(vMapping);\n\
+	//TODO insert Code\n\
+	float F = uLens.x/ uLens.w;\n\
+	float seta = length(vMapping) / F;\n\
+	vMapping = sin(seta) * F / length(vMapping) * vMapping;\n\
+	vMapping *= uLens.w * 1.414;\n\
+	vMapping = GLCoord2TextureCoord(vMapping);\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	} \n\
+	gl_FragColor = texture;\n\
+}\n\
+";
+},{}],30:[function(require,module,exports){
+module.exports = "\
+#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+uniform vec4 uLens;\n\
+uniform vec2 uFov;\n\
+uniform sampler2D uSampler;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+vec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\
+	return (textureCoord - vec2(0.5, 0.5)) * 2.0;\n\
+}\n\
+vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
+	return glCoord / 2.0 + vec2(0.5, 0.5);\n\
+}\n\
+void main(void){\n\
+	vec2 vMapping = vec2(vTextureCoord.x, 1.0 - vTextureCoord.y);\n\
+	vMapping = TextureCoord2GLCoord(vMapping);\n\
+	//TOD insert Code\n\
+	float F = uLens.x/ uLens.w;\n\
+	float seta = length(vMapping) / F;\n\
+	vMapping = sin(seta) * F / length(vMapping) * vMapping;\n\
+	vMapping *= uLens.w * 1.414;\n\
+	vMapping = GLCoord2TextureCoord(vMapping);\n\
+	vec4 texture = texture2D(uSampler, vMapping);\n\
+	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
+		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
+	} \n\
+	gl_FragColor = texture;\n\
+}\n\
+";
+},{}],31:[function(require,module,exports){
+module.exports = "\
+#ifdef GL_ES\n\
+precision highp float;\n\
+#endif\n\
+attribute vec3 aVertexPosition;\n\
+attribute vec2 aTextureCoord;\n\
+varying vec3 vPosition;\n\
+varying vec2 vTextureCoord;\n\
+void main(void){\n\
+	vPosition = aVertexPosition;\n\
+	vTextureCoord = aTextureCoord;\n\
+	gl_Position = vec4(vPosition,1.0);\n\
+}\n\
+";
+},{}],32:[function(require,module,exports){
 (function (Buffer,process){
 'use strict'
 
@@ -6324,7 +6813,7 @@ module.exports = function getPixels(url, type, cb) {
   }
 }
 }).call(this,{"isBuffer":require("../is-buffer/index.js")},require('_process'))
-},{"../is-buffer/index.js":39,"_process":83,"data-uri-to-buffer":22,"ndarray":47,"ndarray-pack":45,"omggif":48,"path":60,"through":104}],25:[function(require,module,exports){
+},{"../is-buffer/index.js":47,"_process":91,"data-uri-to-buffer":22,"ndarray":55,"ndarray-pack":53,"omggif":56,"path":68,"through":112}],33:[function(require,module,exports){
 (function (Buffer){
 /*
   GIFEncoder.js
@@ -6797,7 +7286,7 @@ GIFEncoder.ByteCapacitor = ByteCapacitor;
 module.exports = GIFEncoder;
 
 }).call(this,require("buffer").Buffer)
-},{"./LZWEncoder.js":26,"./TypedNeuQuant.js":27,"assert":1,"buffer":7,"events":23,"readable-stream":34,"util":110}],26:[function(require,module,exports){
+},{"./LZWEncoder.js":34,"./TypedNeuQuant.js":35,"assert":1,"buffer":7,"events":23,"readable-stream":42,"util":118}],34:[function(require,module,exports){
 /*
   LZWEncoder.js
 
@@ -7011,7 +7500,7 @@ function LZWEncoder(width, height, pixels, colorDepth) {
 
 module.exports = LZWEncoder;
 
-},{}],27:[function(require,module,exports){
+},{}],35:[function(require,module,exports){
 /* NeuQuant Neural-Net Quantization Algorithm
  * ------------------------------------------
  *
@@ -7444,13 +7933,13 @@ function NeuQuant(pixels, samplefac) {
 
 module.exports = NeuQuant;
 
-},{}],28:[function(require,module,exports){
+},{}],36:[function(require,module,exports){
 arguments[4][10][0].apply(exports,arguments)
-},{"dup":10}],29:[function(require,module,exports){
+},{"dup":10}],37:[function(require,module,exports){
 arguments[4][11][0].apply(exports,arguments)
-},{"./_stream_readable":31,"./_stream_writable":33,"_process":83,"core-util-is":18,"dup":11,"inherits":37}],30:[function(require,module,exports){
+},{"./_stream_readable":39,"./_stream_writable":41,"_process":91,"core-util-is":18,"dup":11,"inherits":45}],38:[function(require,module,exports){
 arguments[4][12][0].apply(exports,arguments)
-},{"./_stream_transform":32,"core-util-is":18,"dup":12,"inherits":37}],31:[function(require,module,exports){
+},{"./_stream_transform":40,"core-util-is":18,"dup":12,"inherits":45}],39:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -8405,7 +8894,7 @@ function indexOf (xs, x) {
 }
 
 }).call(this,require('_process'))
-},{"./_stream_duplex":29,"_process":83,"buffer":7,"core-util-is":18,"events":23,"inherits":37,"isarray":28,"stream":102,"string_decoder/":35,"util":3}],32:[function(require,module,exports){
+},{"./_stream_duplex":37,"_process":91,"buffer":7,"core-util-is":18,"events":23,"inherits":45,"isarray":36,"stream":110,"string_decoder/":43,"util":3}],40:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -8616,7 +9105,7 @@ function done(stream, er) {
   return stream.push(null);
 }
 
-},{"./_stream_duplex":29,"core-util-is":18,"inherits":37}],33:[function(require,module,exports){
+},{"./_stream_duplex":37,"core-util-is":18,"inherits":45}],41:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -9097,7 +9586,7 @@ function endWritable(stream, state, cb) {
 }
 
 }).call(this,require('_process'))
-},{"./_stream_duplex":29,"_process":83,"buffer":7,"core-util-is":18,"inherits":37,"stream":102}],34:[function(require,module,exports){
+},{"./_stream_duplex":37,"_process":91,"buffer":7,"core-util-is":18,"inherits":45,"stream":110}],42:[function(require,module,exports){
 (function (process){
 exports = module.exports = require('./lib/_stream_readable.js');
 exports.Stream = require('stream');
@@ -9111,9 +9600,9 @@ if (!process.browser && process.env.READABLE_STREAM === 'disable') {
 }
 
 }).call(this,require('_process'))
-},{"./lib/_stream_duplex.js":29,"./lib/_stream_passthrough.js":30,"./lib/_stream_readable.js":31,"./lib/_stream_transform.js":32,"./lib/_stream_writable.js":33,"_process":83,"stream":102}],35:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":37,"./lib/_stream_passthrough.js":38,"./lib/_stream_readable.js":39,"./lib/_stream_transform.js":40,"./lib/_stream_writable.js":41,"_process":91,"stream":110}],43:[function(require,module,exports){
 arguments[4][17][0].apply(exports,arguments)
-},{"buffer":7,"dup":17}],36:[function(require,module,exports){
+},{"buffer":7,"dup":17}],44:[function(require,module,exports){
 exports.read = function (buffer, offset, isLE, mLen, nBytes) {
   var e, m
   var eLen = nBytes * 8 - mLen - 1
@@ -9199,7 +9688,7 @@ exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
   buffer[offset + i - d] |= s * 128
 }
 
-},{}],37:[function(require,module,exports){
+},{}],45:[function(require,module,exports){
 if (typeof Object.create === 'function') {
   // implementation from standard node.js 'util' module
   module.exports = function inherits(ctor, superCtor) {
@@ -9224,7 +9713,7 @@ if (typeof Object.create === 'function') {
   }
 }
 
-},{}],38:[function(require,module,exports){
+},{}],46:[function(require,module,exports){
 "use strict"
 
 function iota(n) {
@@ -9236,7 +9725,7 @@ function iota(n) {
 }
 
 module.exports = iota
-},{}],39:[function(require,module,exports){
+},{}],47:[function(require,module,exports){
 /*!
  * Determine if an object is a Buffer
  *
@@ -9259,9 +9748,9 @@ function isSlowBuffer (obj) {
   return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
 }
 
-},{}],40:[function(require,module,exports){
+},{}],48:[function(require,module,exports){
 arguments[4][8][0].apply(exports,arguments)
-},{"dup":8}],41:[function(require,module,exports){
+},{"dup":8}],49:[function(require,module,exports){
 /*!
  * jQuery JavaScript Library v2.2.4
  * http://jquery.com/
@@ -19077,7 +19566,7 @@ if ( !noGlobal ) {
 return jQuery;
 }));
 
-},{}],42:[function(require,module,exports){
+},{}],50:[function(require,module,exports){
 (function (process){
 var path = require('path');
 var fs = require('fs');
@@ -19189,10 +19678,10 @@ mime.charsets = {
 module.exports = mime;
 
 }).call(this,require('_process'))
-},{"./types.json":43,"_process":83,"fs":6,"path":60}],43:[function(require,module,exports){
+},{"./types.json":51,"_process":91,"fs":6,"path":68}],51:[function(require,module,exports){
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-},{}],44:[function(require,module,exports){
+},{}],52:[function(require,module,exports){
 "use strict"
 
 var compile = require("cwise-compiler")
@@ -19655,7 +20144,7 @@ exports.equals = compile({
 
 
 
-},{"cwise-compiler":19}],45:[function(require,module,exports){
+},{"cwise-compiler":19}],53:[function(require,module,exports){
 "use strict"
 
 var ndarray = require("ndarray")
@@ -19678,10 +20167,10 @@ module.exports = function convert(arr, result) {
   return result
 }
 
-},{"./doConvert.js":46,"ndarray":47}],46:[function(require,module,exports){
+},{"./doConvert.js":54,"ndarray":55}],54:[function(require,module,exports){
 module.exports=require('cwise-compiler')({"args":["array","scalar","index"],"pre":{"body":"{}","args":[],"thisVars":[],"localVars":[]},"body":{"body":"{\nvar _inline_1_v=_inline_1_arg1_,_inline_1_i\nfor(_inline_1_i=0;_inline_1_i<_inline_1_arg2_.length-1;++_inline_1_i) {\n_inline_1_v=_inline_1_v[_inline_1_arg2_[_inline_1_i]]\n}\n_inline_1_arg0_=_inline_1_v[_inline_1_arg2_[_inline_1_arg2_.length-1]]\n}","args":[{"name":"_inline_1_arg0_","lvalue":true,"rvalue":false,"count":1},{"name":"_inline_1_arg1_","lvalue":false,"rvalue":true,"count":1},{"name":"_inline_1_arg2_","lvalue":false,"rvalue":true,"count":4}],"thisVars":[],"localVars":["_inline_1_i","_inline_1_v"]},"post":{"body":"{}","args":[],"thisVars":[],"localVars":[]},"funcName":"convert","blockSize":64})
 
-},{"cwise-compiler":19}],47:[function(require,module,exports){
+},{"cwise-compiler":19}],55:[function(require,module,exports){
 var iota = require("iota-array")
 var isBuffer = require("is-buffer")
 
@@ -20026,7 +20515,7 @@ function wrappedNDArrayCtor(data, shape, stride, offset) {
 
 module.exports = wrappedNDArrayCtor
 
-},{"iota-array":38,"is-buffer":39}],48:[function(require,module,exports){
+},{"iota-array":46,"is-buffer":47}],56:[function(require,module,exports){
 // (c) Dean McNamee <dean@gmail.com>, 2013.
 //
 // https://github.com/deanm/omggif
@@ -20810,7 +21299,7 @@ function GifReaderLZWOutputIndexStream(code_stream, p, output, output_length) {
 
 try { exports.GifWriter = GifWriter; exports.GifReader = GifReader } catch(e) { }  // CommonJS.
 
-},{}],49:[function(require,module,exports){
+},{}],57:[function(require,module,exports){
 'use strict';
 
 
@@ -20914,7 +21403,7 @@ exports.setTyped = function (on) {
 
 exports.setTyped(TYPED_OK);
 
-},{}],50:[function(require,module,exports){
+},{}],58:[function(require,module,exports){
 'use strict';
 
 // Note: adler32 takes 12% for level 0 and 2% for level 6.
@@ -20948,7 +21437,7 @@ function adler32(adler, buf, len, pos) {
 
 module.exports = adler32;
 
-},{}],51:[function(require,module,exports){
+},{}],59:[function(require,module,exports){
 'use strict';
 
 
@@ -21000,7 +21489,7 @@ module.exports = {
   //Z_NULL:                 null // Use -1 or null inline, depending on var type
 };
 
-},{}],52:[function(require,module,exports){
+},{}],60:[function(require,module,exports){
 'use strict';
 
 // Note: we can't get significant speed boost here.
@@ -21043,7 +21532,7 @@ function crc32(crc, buf, len, pos) {
 
 module.exports = crc32;
 
-},{}],53:[function(require,module,exports){
+},{}],61:[function(require,module,exports){
 'use strict';
 
 var utils   = require('../utils/common');
@@ -22900,7 +23389,7 @@ exports.deflatePrime = deflatePrime;
 exports.deflateTune = deflateTune;
 */
 
-},{"../utils/common":49,"./adler32":50,"./crc32":52,"./messages":57,"./trees":58}],54:[function(require,module,exports){
+},{"../utils/common":57,"./adler32":58,"./crc32":60,"./messages":65,"./trees":66}],62:[function(require,module,exports){
 'use strict';
 
 // See state defs from inflate.js
@@ -23228,7 +23717,7 @@ module.exports = function inflate_fast(strm, start) {
   return;
 };
 
-},{}],55:[function(require,module,exports){
+},{}],63:[function(require,module,exports){
 'use strict';
 
 
@@ -24768,7 +25257,7 @@ exports.inflateSyncPoint = inflateSyncPoint;
 exports.inflateUndermine = inflateUndermine;
 */
 
-},{"../utils/common":49,"./adler32":50,"./crc32":52,"./inffast":54,"./inftrees":56}],56:[function(require,module,exports){
+},{"../utils/common":57,"./adler32":58,"./crc32":60,"./inffast":62,"./inftrees":64}],64:[function(require,module,exports){
 'use strict';
 
 
@@ -25097,7 +25586,7 @@ module.exports = function inflate_table(type, lens, lens_index, codes, table, ta
   return 0;
 };
 
-},{"../utils/common":49}],57:[function(require,module,exports){
+},{"../utils/common":57}],65:[function(require,module,exports){
 'use strict';
 
 module.exports = {
@@ -25112,7 +25601,7 @@ module.exports = {
   '-6':   'incompatible version' /* Z_VERSION_ERROR (-6) */
 };
 
-},{}],58:[function(require,module,exports){
+},{}],66:[function(require,module,exports){
 'use strict';
 
 
@@ -26316,7 +26805,7 @@ exports._tr_flush_block  = _tr_flush_block;
 exports._tr_tally = _tr_tally;
 exports._tr_align = _tr_align;
 
-},{"../utils/common":49}],59:[function(require,module,exports){
+},{"../utils/common":57}],67:[function(require,module,exports){
 'use strict';
 
 
@@ -26347,7 +26836,7 @@ function ZStream() {
 
 module.exports = ZStream;
 
-},{}],60:[function(require,module,exports){
+},{}],68:[function(require,module,exports){
 (function (process){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -26575,7 +27064,7 @@ var substr = 'ab'.substr(-1) === 'b'
 ;
 
 }).call(this,require('_process'))
-},{"_process":83}],61:[function(require,module,exports){
+},{"_process":91}],69:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -26771,7 +27260,7 @@ exports.dataToBitMap = function(data, bitmapInfo) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./interlace":71,"buffer":7}],62:[function(require,module,exports){
+},{"./interlace":79,"buffer":7}],70:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -26839,7 +27328,7 @@ module.exports = function(data, width, height, options) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./constants":64,"buffer":7}],63:[function(require,module,exports){
+},{"./constants":72,"buffer":7}],71:[function(require,module,exports){
 (function (process,Buffer){
 'use strict';
 
@@ -27052,7 +27541,7 @@ ChunkStream.prototype._process = function() {
 };
 
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"_process":83,"buffer":7,"stream":102,"util":110}],64:[function(require,module,exports){
+},{"_process":91,"buffer":7,"stream":110,"util":118}],72:[function(require,module,exports){
 'use strict';
 
 
@@ -27088,7 +27577,7 @@ module.exports = {
   GAMMA_DIVISION: 100000
 };
 
-},{}],65:[function(require,module,exports){
+},{}],73:[function(require,module,exports){
 'use strict';
 
 var crcTable = [];
@@ -27134,7 +27623,7 @@ CrcCalculator.crc32 = function(buf) {
   return crc ^ -1;
 };
 
-},{}],66:[function(require,module,exports){
+},{}],74:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27321,7 +27810,7 @@ module.exports = function(pxData, width, height, options, bpp) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./paeth-predictor":75,"buffer":7}],67:[function(require,module,exports){
+},{"./paeth-predictor":83,"buffer":7}],75:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27350,7 +27839,7 @@ var FilterAsync = module.exports = function(bitmapInfo) {
 util.inherits(FilterAsync, ChunkStream);
 
 }).call(this,require("buffer").Buffer)
-},{"./chunkstream":63,"./filter-parse":69,"buffer":7,"util":110}],68:[function(require,module,exports){
+},{"./chunkstream":71,"./filter-parse":77,"buffer":7,"util":118}],76:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27377,7 +27866,7 @@ exports.process = function(inBuffer, bitmapInfo) {
   return Buffer.concat(outBuffers);
 };
 }).call(this,require("buffer").Buffer)
-},{"./filter-parse":69,"./sync-reader":81,"buffer":7}],69:[function(require,module,exports){
+},{"./filter-parse":77,"./sync-reader":89,"buffer":7}],77:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27552,7 +28041,7 @@ Filter.prototype._reverseFilterLine = function(rawData) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./interlace":71,"./paeth-predictor":75,"buffer":7}],70:[function(require,module,exports){
+},{"./interlace":79,"./paeth-predictor":83,"buffer":7}],78:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27645,7 +28134,7 @@ module.exports = function(indata, imageData) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7}],71:[function(require,module,exports){
+},{"buffer":7}],79:[function(require,module,exports){
 'use strict';
 
 // Adam 7
@@ -27733,7 +28222,7 @@ exports.getInterlaceIterator = function(width) {
     return (outerX * 4) + (outerY * width * 4);
   };
 };
-},{}],72:[function(require,module,exports){
+},{}],80:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27782,7 +28271,7 @@ PackerAsync.prototype.pack = function(data, width, height, gamma) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./constants":64,"./packer":74,"buffer":7,"stream":102,"util":110}],73:[function(require,module,exports){
+},{"./constants":72,"./packer":82,"buffer":7,"stream":110,"util":118}],81:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27834,7 +28323,7 @@ module.exports = function(metaData, opt) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./constants":64,"./packer":74,"buffer":7,"zlib":5}],74:[function(require,module,exports){
+},{"./constants":72,"./packer":82,"buffer":7,"zlib":5}],82:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -27929,7 +28418,7 @@ Packer.prototype.packIEND = function() {
   return this._packChunk(constants.TYPE_IEND, null);
 };
 }).call(this,require("buffer").Buffer)
-},{"./bitpacker":62,"./constants":64,"./crc":65,"./filter-pack":66,"buffer":7,"zlib":5}],75:[function(require,module,exports){
+},{"./bitpacker":70,"./constants":72,"./crc":73,"./filter-pack":74,"buffer":7,"zlib":5}],83:[function(require,module,exports){
 'use strict';
 
 module.exports = function paethPredictor(left, above, upLeft) {
@@ -27947,7 +28436,7 @@ module.exports = function paethPredictor(left, above, upLeft) {
   }
   return upLeft;
 };
-},{}],76:[function(require,module,exports){
+},{}],84:[function(require,module,exports){
 'use strict';
 
 var util = require('util');
@@ -28059,7 +28548,7 @@ ParserAsync.prototype._complete = function(filteredData) {
   this.emit('parsed', normalisedBitmapData);
 };
 
-},{"./bitmapper":61,"./chunkstream":63,"./filter-parse-async":67,"./format-normaliser":70,"./parser":78,"util":110,"zlib":5}],77:[function(require,module,exports){
+},{"./bitmapper":69,"./chunkstream":71,"./filter-parse-async":75,"./format-normaliser":78,"./parser":86,"util":118,"zlib":5}],85:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -28154,7 +28643,7 @@ module.exports = function(buffer, options) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./bitmapper":61,"./filter-parse-sync":68,"./format-normaliser":70,"./parser":78,"./sync-reader":81,"buffer":7,"zlib":5}],78:[function(require,module,exports){
+},{"./bitmapper":69,"./filter-parse-sync":76,"./format-normaliser":78,"./parser":86,"./sync-reader":89,"buffer":7,"zlib":5}],86:[function(require,module,exports){
 (function (Buffer){
 'use strict';
 
@@ -28448,7 +28937,7 @@ Parser.prototype._parseIEND = function(data) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"./constants":64,"./crc":65,"buffer":7}],79:[function(require,module,exports){
+},{"./constants":72,"./crc":73,"buffer":7}],87:[function(require,module,exports){
 'use strict';
 
 
@@ -28466,7 +28955,7 @@ exports.write = function(png) {
   return pack(png);
 };
 
-},{"./packer-sync":73,"./parser-sync":77}],80:[function(require,module,exports){
+},{"./packer-sync":81,"./parser-sync":85}],88:[function(require,module,exports){
 (function (process,Buffer){
 'use strict';
 
@@ -28633,7 +29122,7 @@ PNG.prototype.adjustGamma = function() {
 };
 
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"./packer-async":72,"./parser-async":76,"./png-sync":79,"_process":83,"buffer":7,"stream":102,"util":110}],81:[function(require,module,exports){
+},{"./packer-async":80,"./parser-async":84,"./png-sync":87,"_process":91,"buffer":7,"stream":110,"util":118}],89:[function(require,module,exports){
 'use strict';
 
 var SyncReader = module.exports = function(buffer) {
@@ -28686,7 +29175,7 @@ SyncReader.prototype.process = function() {
 
 };
 
-},{}],82:[function(require,module,exports){
+},{}],90:[function(require,module,exports){
 (function (process){
 'use strict';
 
@@ -28733,7 +29222,7 @@ function nextTick(fn, arg1, arg2, arg3) {
 }
 
 }).call(this,require('_process'))
-},{"_process":83}],83:[function(require,module,exports){
+},{"_process":91}],91:[function(require,module,exports){
 // shim for using process in browser
 var process = module.exports = {};
 
@@ -28919,10 +29408,10 @@ process.chdir = function (dir) {
 };
 process.umask = function() { return 0; };
 
-},{}],84:[function(require,module,exports){
+},{}],92:[function(require,module,exports){
 module.exports = require('./lib/_stream_duplex.js');
 
-},{"./lib/_stream_duplex.js":85}],85:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":93}],93:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -29047,7 +29536,7 @@ function forEach(xs, f) {
     f(xs[i], i);
   }
 }
-},{"./_stream_readable":87,"./_stream_writable":89,"core-util-is":18,"inherits":37,"process-nextick-args":82}],86:[function(require,module,exports){
+},{"./_stream_readable":95,"./_stream_writable":97,"core-util-is":18,"inherits":45,"process-nextick-args":90}],94:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -29095,7 +29584,7 @@ function PassThrough(options) {
 PassThrough.prototype._transform = function (chunk, encoding, cb) {
   cb(null, chunk);
 };
-},{"./_stream_transform":88,"core-util-is":18,"inherits":37}],87:[function(require,module,exports){
+},{"./_stream_transform":96,"core-util-is":18,"inherits":45}],95:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -30105,7 +30594,7 @@ function indexOf(xs, x) {
   return -1;
 }
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":85,"./internal/streams/BufferList":90,"./internal/streams/destroy":91,"./internal/streams/stream":92,"_process":83,"core-util-is":18,"events":23,"inherits":37,"isarray":40,"process-nextick-args":82,"safe-buffer":97,"string_decoder/":103,"util":3}],88:[function(require,module,exports){
+},{"./_stream_duplex":93,"./internal/streams/BufferList":98,"./internal/streams/destroy":99,"./internal/streams/stream":100,"_process":91,"core-util-is":18,"events":23,"inherits":45,"isarray":48,"process-nextick-args":90,"safe-buffer":105,"string_decoder/":111,"util":3}],96:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -30320,7 +30809,7 @@ function done(stream, er, data) {
 
   return stream.push(null);
 }
-},{"./_stream_duplex":85,"core-util-is":18,"inherits":37}],89:[function(require,module,exports){
+},{"./_stream_duplex":93,"core-util-is":18,"inherits":45}],97:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -30987,7 +31476,7 @@ Writable.prototype._destroy = function (err, cb) {
   cb(err);
 };
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./_stream_duplex":85,"./internal/streams/destroy":91,"./internal/streams/stream":92,"_process":83,"core-util-is":18,"inherits":37,"process-nextick-args":82,"safe-buffer":97,"util-deprecate":107}],90:[function(require,module,exports){
+},{"./_stream_duplex":93,"./internal/streams/destroy":99,"./internal/streams/stream":100,"_process":91,"core-util-is":18,"inherits":45,"process-nextick-args":90,"safe-buffer":105,"util-deprecate":115}],98:[function(require,module,exports){
 'use strict';
 
 /*<replacement>*/
@@ -31062,7 +31551,7 @@ module.exports = function () {
 
   return BufferList;
 }();
-},{"safe-buffer":97}],91:[function(require,module,exports){
+},{"safe-buffer":105}],99:[function(require,module,exports){
 'use strict';
 
 /*<replacement>*/
@@ -31135,13 +31624,13 @@ module.exports = {
   destroy: destroy,
   undestroy: undestroy
 };
-},{"process-nextick-args":82}],92:[function(require,module,exports){
+},{"process-nextick-args":90}],100:[function(require,module,exports){
 module.exports = require('events').EventEmitter;
 
-},{"events":23}],93:[function(require,module,exports){
+},{"events":23}],101:[function(require,module,exports){
 module.exports = require('./readable').PassThrough
 
-},{"./readable":94}],94:[function(require,module,exports){
+},{"./readable":102}],102:[function(require,module,exports){
 exports = module.exports = require('./lib/_stream_readable.js');
 exports.Stream = exports;
 exports.Readable = exports;
@@ -31150,13 +31639,13 @@ exports.Duplex = require('./lib/_stream_duplex.js');
 exports.Transform = require('./lib/_stream_transform.js');
 exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-},{"./lib/_stream_duplex.js":85,"./lib/_stream_passthrough.js":86,"./lib/_stream_readable.js":87,"./lib/_stream_transform.js":88,"./lib/_stream_writable.js":89}],95:[function(require,module,exports){
+},{"./lib/_stream_duplex.js":93,"./lib/_stream_passthrough.js":94,"./lib/_stream_readable.js":95,"./lib/_stream_transform.js":96,"./lib/_stream_writable.js":97}],103:[function(require,module,exports){
 module.exports = require('./readable').Transform
 
-},{"./readable":94}],96:[function(require,module,exports){
+},{"./readable":102}],104:[function(require,module,exports){
 module.exports = require('./lib/_stream_writable.js');
 
-},{"./lib/_stream_writable.js":89}],97:[function(require,module,exports){
+},{"./lib/_stream_writable.js":97}],105:[function(require,module,exports){
 /* eslint-disable node/no-deprecated-api */
 var buffer = require('buffer')
 var Buffer = buffer.Buffer
@@ -31220,7 +31709,7 @@ SafeBuffer.allocUnsafeSlow = function (size) {
   return buffer.SlowBuffer(size)
 }
 
-},{"buffer":7}],98:[function(require,module,exports){
+},{"buffer":7}],106:[function(require,module,exports){
 var encode = require('./lib/encoder'),
     decode = require('./lib/decoder');
 
@@ -31229,7 +31718,7 @@ module.exports = {
   decode: decode
 };
 
-},{"./lib/decoder":99,"./lib/encoder":100}],99:[function(require,module,exports){
+},{"./lib/decoder":107,"./lib/encoder":108}],107:[function(require,module,exports){
 (function (Buffer){
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
@@ -32212,7 +32701,7 @@ function decode(jpegData) {
 }
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7}],100:[function(require,module,exports){
+},{"buffer":7}],108:[function(require,module,exports){
 (function (Buffer){
 /*
   Copyright (c) 2008, Adobe Systems Incorporated
@@ -32982,7 +33471,7 @@ function getImageDataFromImage(idOrElement){
 }
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7}],101:[function(require,module,exports){
+},{"buffer":7}],109:[function(require,module,exports){
 (function (Buffer){
 'use strict'
 
@@ -33127,7 +33616,7 @@ module.exports = function savePixels (array, type, options) {
 }
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7,"contentstream":9,"gif-encoder":25,"jpeg-js":98,"ndarray":47,"ndarray-ops":44,"pngjs-nozlib":80,"through":104}],102:[function(require,module,exports){
+},{"buffer":7,"contentstream":9,"gif-encoder":33,"jpeg-js":106,"ndarray":55,"ndarray-ops":52,"pngjs-nozlib":88,"through":112}],110:[function(require,module,exports){
 // Copyright Joyent, Inc. and other Node contributors.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
@@ -33256,7 +33745,7 @@ Stream.prototype.pipe = function(dest, options) {
   return dest;
 };
 
-},{"events":23,"inherits":37,"readable-stream/duplex.js":84,"readable-stream/passthrough.js":93,"readable-stream/readable.js":94,"readable-stream/transform.js":95,"readable-stream/writable.js":96}],103:[function(require,module,exports){
+},{"events":23,"inherits":45,"readable-stream/duplex.js":92,"readable-stream/passthrough.js":101,"readable-stream/readable.js":102,"readable-stream/transform.js":103,"readable-stream/writable.js":104}],111:[function(require,module,exports){
 'use strict';
 
 var Buffer = require('safe-buffer').Buffer;
@@ -33529,7 +34018,7 @@ function simpleWrite(buf) {
 function simpleEnd(buf) {
   return buf && buf.length ? this.write(buf) : '';
 }
-},{"safe-buffer":97}],104:[function(require,module,exports){
+},{"safe-buffer":105}],112:[function(require,module,exports){
 (function (process){
 var Stream = require('stream')
 
@@ -33641,7 +34130,7 @@ function through (write, end, opts) {
 
 
 }).call(this,require('_process'))
-},{"_process":83,"stream":102}],105:[function(require,module,exports){
+},{"_process":91,"stream":110}],113:[function(require,module,exports){
 "use strict"
 
 function unique_pred(list, compare) {
@@ -33700,7 +34189,7 @@ function unique(list, compare, sorted) {
 
 module.exports = unique
 
-},{}],106:[function(require,module,exports){
+},{}],114:[function(require,module,exports){
 var mime = require('mime');
 var fs = require('fs');
 
@@ -33710,7 +34199,7 @@ module.exports = function urifyNode (file) {
   return 'data:' + type + ';base64,' + data;
 };
 
-},{"fs":6,"mime":42}],107:[function(require,module,exports){
+},{"fs":6,"mime":50}],115:[function(require,module,exports){
 (function (global){
 
 /**
@@ -33781,16 +34270,16 @@ function config (name) {
 }
 
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],108:[function(require,module,exports){
-arguments[4][37][0].apply(exports,arguments)
-},{"dup":37}],109:[function(require,module,exports){
+},{}],116:[function(require,module,exports){
+arguments[4][45][0].apply(exports,arguments)
+},{"dup":45}],117:[function(require,module,exports){
 module.exports = function isBuffer(arg) {
   return arg && typeof arg === 'object'
     && typeof arg.copy === 'function'
     && typeof arg.fill === 'function'
     && typeof arg.readUInt8 === 'function';
 }
-},{}],110:[function(require,module,exports){
+},{}],118:[function(require,module,exports){
 (function (process,global){
 // Copyright Joyent, Inc. and other Node contributors.
 //
@@ -34380,7 +34869,7 @@ function hasOwnProperty(obj, prop) {
 }
 
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":109,"_process":83,"inherits":108}],111:[function(require,module,exports){
+},{"./support/isBuffer":117,"_process":91,"inherits":116}],119:[function(require,module,exports){
 function AddStep(ref, image, name, o) {
 
   function addStep(image, name, o_) {
@@ -34407,7 +34896,7 @@ function AddStep(ref, image, name, o) {
 }
 module.exports = AddStep;
 
-},{}],112:[function(require,module,exports){
+},{}],120:[function(require,module,exports){
 function objTypeOf(object){
   return Object.prototype.toString.call(object).split(" ")[1].slice(0,-1)
 }
@@ -34573,7 +35062,7 @@ function formatInput(args,format,images) {
 }
 module.exports = formatInput;
 
-},{}],113:[function(require,module,exports){
+},{}],121:[function(require,module,exports){
 if (typeof window !== 'undefined') {window.$ = window.jQuery = require('jquery'); isBrowser = true}
 else {var isBrowser = false}
 
@@ -34781,7 +35270,7 @@ ImageSequencer = function ImageSequencer(options) {
 }
 module.exports = ImageSequencer;
 
-},{"./AddStep":111,"./FormatInput":112,"./InsertStep":114,"./LoadImage":115,"./Modules":116,"./ReplaceImage":117,"./Run":118,"./UserInterface":119,"jquery":41}],114:[function(require,module,exports){
+},{"./AddStep":119,"./FormatInput":120,"./InsertStep":122,"./LoadImage":123,"./Modules":124,"./ReplaceImage":125,"./Run":126,"./UserInterface":127,"jquery":49}],122:[function(require,module,exports){
 function InsertStep(ref, image, index, name, o) {
 
   function insertStep(image, index, name, o_) {
@@ -34809,7 +35298,7 @@ function InsertStep(ref, image, index, name, o) {
 }
 module.exports = InsertStep;
 
-},{}],115:[function(require,module,exports){
+},{}],123:[function(require,module,exports){
 function LoadImage(ref, name, src, main_callback) {
   function makeImage(datauri) {
     var image = {
@@ -34900,7 +35389,7 @@ function LoadImage(ref, name, src, main_callback) {
 
 module.exports = LoadImage;
 
-},{"urify":106}],116:[function(require,module,exports){
+},{"urify":114}],124:[function(require,module,exports){
 /*
  * Core modules
  */
@@ -34915,11 +35404,7 @@ module.exports = {
   'fisheye-gl': require('./modules/FisheyeGl/Module')
 }
 
-<<<<<<< HEAD
-},{"./modules/Crop/Module":123,"./modules/DoNothing/Module":124,"./modules/DoNothingPix/Module.js":125,"./modules/FisheyeGl/Module":126,"./modules/GreenChannel/Module":130,"./modules/Invert/Module":131,"./modules/NdviRed/Module":132,"./modules/SegmentedColormap/Module":133}],120:[function(require,module,exports){
-=======
-},{"./modules/Crop/Module":121,"./modules/DoNothing/Module":122,"./modules/DoNothingPix/Module.js":123,"./modules/GreenChannel/Module":124,"./modules/Invert/Module":125,"./modules/NdviRed/Module":126,"./modules/SegmentedColormap/Module":127}],117:[function(require,module,exports){
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
+},{"./modules/Crop/Module":129,"./modules/DoNothing/Module":130,"./modules/DoNothingPix/Module.js":131,"./modules/FisheyeGl/Module":132,"./modules/GreenChannel/Module":133,"./modules/Invert/Module":134,"./modules/NdviRed/Module":135,"./modules/SegmentedColormap/Module":136}],125:[function(require,module,exports){
 function ReplaceImage(ref,selector,steps,options) {
   if(!ref.options.inBrowser) return false; // This isn't for Node.js
   var this_ = ref;
@@ -34956,7 +35441,7 @@ function ReplaceImage(ref,selector,steps,options) {
 
 module.exports = ReplaceImage;
 
-},{}],118:[function(require,module,exports){
+},{}],126:[function(require,module,exports){
 function Run(ref, json_q, callback) {
   function drawStep(drawarray,pos) {
     if(pos==drawarray.length) {
@@ -35005,7 +35490,7 @@ function Run(ref, json_q, callback) {
 }
 module.exports = Run;
 
-},{}],119:[function(require,module,exports){
+},{}],127:[function(require,module,exports){
 /*
  * Default UI for each image-sequencer module
  */
@@ -35079,7 +35564,7 @@ module.exports = function UserInterface(UI,options) {
 
 }
 
-},{}],120:[function(require,module,exports){
+},{}],128:[function(require,module,exports){
 (function (Buffer){
 module.exports = function Crop(input,options,callback) {
 
@@ -35118,7 +35603,7 @@ module.exports = function Crop(input,options,callback) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7,"get-pixels":24,"save-pixels":101}],121:[function(require,module,exports){
+},{"buffer":7,"get-pixels":32,"save-pixels":109}],129:[function(require,module,exports){
 /*
  * Image Cropping module
  * Usage:
@@ -35165,7 +35650,7 @@ module.exports = function Crop(input,options,callback) {
    }
  }
 
-},{"./Crop":120}],122:[function(require,module,exports){
+},{"./Crop":128}],130:[function(require,module,exports){
 /*
  * Demo Module. Does nothing. Adds a step where output is equal to input.
  */
@@ -35190,7 +35675,7 @@ module.exports = function DoNothing(options,UI) {
   }
 }
 
-},{}],123:[function(require,module,exports){
+},{}],131:[function(require,module,exports){
 /*
  * This module extracts pixels and saves them as it is.
  */
@@ -35231,15 +35716,15 @@ module.exports = function DoNothingPix(options,UI) {
   }
 }
 
-<<<<<<< HEAD
-},{"../_nomodule/PixelManipulation.js":135}],126:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":138}],132:[function(require,module,exports){
 /*
  * Creates Fisheye Effect
  */
 module.exports = function DoNothing(options) {
   options = options || {};
   options.title = "Fisheye GL";
-  var output
+  var output;
+  require('fisheyegl');
 
   function draw(input,callback) {
     this_ = this;
@@ -35248,7 +35733,6 @@ module.exports = function DoNothing(options) {
       callback();
     }
     else {
-
       if (!document.querySelector('#image-sequencer-canvas')) {
         var canvas = document.createElement('canvas');
         canvas.style.display = "none";
@@ -35257,7 +35741,7 @@ module.exports = function DoNothing(options) {
       }
       else var canvas = document.querySelector('#image-sequencer-canvas');
 
-      distorter = require('./fisheyegl.js')({
+      distorter = FisheyeGl({
         selector: "#image-sequencer-canvas"
       });
 
@@ -35284,360 +35768,7 @@ module.exports = function DoNothing(options) {
   }
 }
 
-},{"./fisheyegl.js":127}],127:[function(require,module,exports){
-module.exports = function FisheyeGl (options){
-
-  // Defaults:
-  options = options || {};
-
-  options.width = options.width || 800;
-  options.height = options.height || 600;
-
-  var model = options.model || {
-    vertex :[
-      -1.0, -1.0, 0.0,
-       1.0, -1.0, 0.0,
-       1.0,  1.0, 0.0,
-      -1.0,  1.0, 0.0
-    ],
-    indices :[
-      0, 1, 2,
-      0, 2, 3,
-      2, 1, 0,
-      3, 2, 0
-    ],
-    textureCoords : [
-      0.0, 0.0,
-      1.0, 0.0,
-      1.0, 1.0,
-      0.0, 1.0
-    ]
-  };
-
-  var lens = options.lens || {
-    a : 1.0,
-    b : 1.0,
-    Fx : 0.0,
-    Fy : 0.0,
-    scale : 1.5
-  };
-  var fov = options.fov || {
-    x : 1.0,
-    y : 1.0
-  }
-  var image = options.image || "images/barrel-distortion.png";
-
-  var selector = options.selector || "#canvas";
-  var gl = getGLContext(selector);
-
-  var vertexSrc = require("./shaders/vertex.glvs");
-  var fragmentSrc = require("./shaders/fragment3.glfs");
-
-  var program = compileShader(gl, vertexSrc, fragmentSrc)
-  gl.useProgram(program);
-
-  var aVertexPosition = gl.getAttribLocation(program, "aVertexPosition");
-  var aTextureCoord = gl.getAttribLocation(program, "aTextureCoord");
-  var uSampler = gl.getUniformLocation(program, "uSampler");
-  var uLensS = gl.getUniformLocation(program, "uLensS");
-  var uLensF = gl.getUniformLocation(program, "uLensF");
-  var uFov = gl.getUniformLocation(program, "uFov");
-
-  var vertexBuffer,
-      indexBuffer,
-      textureBuffer;
-
-  function createBuffers() {
-
-    vertexBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
-    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.vertex), gl.STATIC_DRAW);
-    gl.bindBuffer(gl.ARRAY_BUFFER, null);
-
-    indexBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
-    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(model.indices), gl.STATIC_DRAW);
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
-
-    textureBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
-    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.textureCoords), gl.STATIC_DRAW);
-    gl.bindBuffer(gl.ARRAY_BUFFER, null);
-
-  }
-
-  createBuffers();
-
-  function getGLContext(selector){
-    var canvas = document.querySelector(selector);
-
-    if(canvas == null){
-      throw new Error("there is no canvas on this page");
-    }
-
-    var names = ["webgl", "experimental-webgl", "webkit-3d", "moz-webgl"];
-    for (var i = 0; i < names.length; ++i) {
-      var gl;
-      try {
-        gl = canvas.getContext(names[i], { preserveDrawingBuffer: true });
-      } catch(e) {
-        continue;
-      }
-      if (gl) return gl;
-    }
-
-    throw new Error("WebGL is not supported!");
-  }
-
-  function compileShader(gl, vertexSrc, fragmentSrc){
-    var vertexShader = gl.createShader(gl.VERTEX_SHADER);
-    gl.shaderSource(vertexShader, vertexSrc);
-    gl.compileShader(vertexShader);
-
-    _checkCompile(vertexShader);
-
-    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
-    gl.shaderSource(fragmentShader, fragmentSrc);
-    gl.compileShader(fragmentShader);
-
-    _checkCompile(fragmentShader);
-
-    var program = gl.createProgram();
-
-    gl.attachShader(program, vertexShader);
-    gl.attachShader(program, fragmentShader);
-
-    gl.linkProgram(program);
-
-    return program;
-
-    function _checkCompile(shader){
-      if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
-        throw new Error(gl.getShaderInfoLog(shader));
-      }
-    }
-  }
-
-  function loadFile(url, callback){
-    var ajax = new XMLHttpRequest();
-
-    if(callback) {
-      ajax.addEventListener("readystatechange", on)
-      ajax.open("GET", url, true);
-      ajax.send(null);
-    } else {
-      ajax.open("GET", url, false);
-      ajax.send(null);
-
-      if(ajax.status == 200){
-        return ajax.responseText;
-      }
-    }
-
-    function on(){
-      if(ajax.readyState === 4){
-        //complete requset
-        if(ajax.status === 200){
-          //not error
-          callback(null, ajax.responseText);
-        } else {
-          callback(new Error("fail to load!"));
-        }
-      }
-    }
-  }
-
-  function loadImage(gl, img, callback, texture){
-    texture = texture || gl.createTexture();
-
-    gl.bindTexture(gl.TEXTURE_2D, texture);
-
-    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img);
-
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); //gl.NEAREST is also allowed, instead of gl.LINEAR, as neither mipmap.
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); //Prevents s-coordinate wrapping (repeating).
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); //Prevents t-coordinate wrapping (repeating).
-    //gl.generateMipmap(gl.TEXTURE_2D);
-    gl.bindTexture(gl.TEXTURE_2D, null);
-
-    if(callback) callback(null, texture);
-    return texture;
-  }
-
-  function loadImageFromUrl(gl, url, callback){
-    var texture = gl.createTexture();
-    var img = new Image();
-    img.addEventListener("load", function onload(){
-      loadImage(gl, img, callback, texture);
-      options.width = img.width;
-      options.height = img.height;
-      resize(
-        options.width,
-        options.height
-      )
-    });
-    img.src = url;
-    return texture;
-  }
-
-  function run(animate, callback){
-    var f = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
-      window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
-
-    // ugh
-    if(animate === true){
-      if(f){
-        f(on);
-      } else {
-        throw new Error("do not support 'requestAnimationFram'");
-      }
-    } else {
-      f(on);
-    }
-
-    var current = null;
-    function on(t){
-      if(!current) current = t;
-      var dt = t - current;
-      current = t;
-      options.runner(dt);
-      if (callback) callback();
-      if (animate === true) f(on);
-    }
-  }
-
-  function resize(w, h) {
-    gl.viewport(0, 0, w, h);
-    gl.canvas.width = w;
-    gl.canvas.height = h;
-  }
-
-  options.runner = options.runner|| function runner(dt){
-
-    gl.clearColor(0.0, 0.0, 0.0, 1.0);
-    gl.enable(gl.DEPTH_TEST);
-
-    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-    gl.enableVertexAttribArray(aVertexPosition);
-
-    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
-    gl.vertexAttribPointer(aVertexPosition, 3, gl.FLOAT, false, 0, 0);
-
-    gl.enableVertexAttribArray(aTextureCoord);
-
-    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
-    gl.vertexAttribPointer(aTextureCoord, 2, gl.FLOAT, false, 0, 0);
-
-    gl.activeTexture(gl.TEXTURE0);
-    gl.bindTexture(gl.TEXTURE_2D, texture);
-    gl.uniform1i(uSampler, 0);
-
-    gl.uniform3fv(uLensS, [lens.a, lens.b, lens.scale]);
-    gl.uniform2fv(uLensF, [lens.Fx, lens.Fy]);
-    gl.uniform2fv(uFov, [fov.x, fov.y]);
-
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
-    gl.drawElements(gl.TRIANGLES, model.indices.length, gl.UNSIGNED_SHORT, 0);
-
-  }
-
-  var texture;
-
-  function setImage(imageUrl, callback) {
-    texture = loadImageFromUrl(gl, imageUrl, function onImageLoad() {
-
-      run(options.animate, callback);
-
-    });
-  }
-
-  // setImage(image);
-
-  // asynchronous!
-  function getImage(format) {
-
-    var img = new Image();
-
-    img.src = gl.canvas.toDataURL(format || 'image/jpeg');
-
-    return img;
-
-  }
-
-  // external API:
-  var distorter = {
-    options:  options,
-    gl:       gl,
-    lens:     lens,
-    fov:      fov,
-    run:      run,
-    getImage: getImage,
-    setImage: setImage
-  }
-
-  return distorter;
-
-}
-
-},{"./shaders/fragment3.glfs":128,"./shaders/vertex.glvs":129}],128:[function(require,module,exports){
-module.exports = "#ifdef GL_ES\n\
-precision highp float;\n\
-#endif\n\
-\n\
-uniform vec3 uLensS;\n\
-uniform vec2 uLensF;\n\
-uniform vec2 uFov;\n\
-\n\
-uniform sampler2D uSampler;\n\
-\n\
-varying vec3 vPosition;\n\
-varying vec2 vTextureCoord;\n\
-\n\
-vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
-	return glCoord  * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n\
-}\n\
-\n\
-void main(void){\n\
-	float scale = uLensS.z;\n\
-	vec3 vPos = vPosition;\n\
-	float Fx = uLensF.x;\n\
-	float Fy = uLensF.y;\n\
-\n\
-	vec2 vMapping = vPos.xy;\n\
-	vMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\
-	vMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\
-	vMapping = vMapping * uLensS.xy;\n\
-\n\
-	vMapping = GLCoord2TextureCoord(vMapping/scale);\n\
-\n\
-	vec4 texture = texture2D(uSampler, vMapping);\n\
-	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
-		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
-	}\n\
-	gl_FragColor = texture;\n\
-}\n\
-";
-
-},{}],129:[function(require,module,exports){
-module.exports = "#ifdef GL_ES\n\
-precision highp float;\n\
-#endif\n\
-attribute vec3 aVertexPosition;\n\
-attribute vec2 aTextureCoord;\n\
-varying vec3 vPosition;\n\
-varying vec2 vTextureCoord;\n\
-void main(void){\n\
-	vPosition = aVertexPosition;\n\
-	vTextureCoord = aTextureCoord;\n\
-	gl_Position = vec4(vPosition,1.0);\n\
-}";
-
-},{}],130:[function(require,module,exports){
-=======
-},{"../_nomodule/PixelManipulation.js":129}],124:[function(require,module,exports){
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
+},{"fisheyegl":24}],133:[function(require,module,exports){
 /*
  * Display only the green channel
  */
@@ -35680,11 +35811,7 @@ module.exports = function GreenChannel(options,UI) {
   }
 }
 
-<<<<<<< HEAD
-},{"../_nomodule/PixelManipulation.js":135}],131:[function(require,module,exports){
-=======
-},{"../_nomodule/PixelManipulation.js":129}],125:[function(require,module,exports){
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
+},{"../_nomodule/PixelManipulation.js":138}],134:[function(require,module,exports){
 /*
  * Display only the green channel
  */
@@ -35729,11 +35856,7 @@ module.exports = function GreenChannel(options,UI) {
   }
 }
 
-<<<<<<< HEAD
-},{"../_nomodule/PixelManipulation.js":135}],132:[function(require,module,exports){
-=======
-},{"../_nomodule/PixelManipulation.js":129}],126:[function(require,module,exports){
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
+},{"../_nomodule/PixelManipulation.js":138}],135:[function(require,module,exports){
 /*
  * NDVI with red filter (blue channel is infrared)
  */
@@ -35776,13 +35899,8 @@ module.exports = function NdviRed(options,UI) {
   }
 }
 
-<<<<<<< HEAD
-},{"../_nomodule/PixelManipulation.js":135}],133:[function(require,module,exports){
-module.exports = function SegmentedColormap(options) {
-=======
-},{"../_nomodule/PixelManipulation.js":129}],127:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":138}],136:[function(require,module,exports){
 module.exports = function SegmentedColormap(options,UI) {
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
 
   options = options || {};
   options.title = "Segmented Colormap";
@@ -35822,11 +35940,7 @@ module.exports = function SegmentedColormap(options,UI) {
   }
 }
 
-<<<<<<< HEAD
-},{"../_nomodule/PixelManipulation.js":135,"./SegmentedColormap":134}],134:[function(require,module,exports){
-=======
-},{"../_nomodule/PixelManipulation.js":129,"./SegmentedColormap":128}],128:[function(require,module,exports){
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
+},{"../_nomodule/PixelManipulation.js":138,"./SegmentedColormap":137}],137:[function(require,module,exports){
 /*
  * Accepts a normalized ndvi and returns the new color-mapped pixel
  */
@@ -35885,12 +35999,8 @@ var colormaps = {
   fastie: fastie_colormap
 }
 
-<<<<<<< HEAD
-},{}],135:[function(require,module,exports){
-=======
-},{}],129:[function(require,module,exports){
+},{}],138:[function(require,module,exports){
 (function (Buffer){
->>>>>>> 8610ab1ff81c39f830ffe45dfc0ae2e39fbf179b
 /*
  * General purpose per-pixel manipulation
  * accepting a changePixel() method to remix a pixel's channels
@@ -35953,4 +36063,4 @@ module.exports = function PixelManipulation(image, options) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":7,"get-pixels":24,"save-pixels":101}]},{},[113]);
+},{"buffer":7,"get-pixels":32,"save-pixels":109}]},{},[121]);
diff --git a/package.json b/package.json
index 02ed2019..fbb946c1 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
   },
   "dependencies": {
     "bootstrap": "~3.2.0",
+    "fisheyegl": "^0.1.2",
     "font-awesome": "~4.5.0",
     "jquery": "~2",
     "urify": "^2.1.0"
diff --git a/src/modules/FisheyeGl/Module.js b/src/modules/FisheyeGl/Module.js
index 0dea4098..b07fdcd1 100644
--- a/src/modules/FisheyeGl/Module.js
+++ b/src/modules/FisheyeGl/Module.js
@@ -4,7 +4,8 @@
 module.exports = function DoNothing(options) {
   options = options || {};
   options.title = "Fisheye GL";
-  var output
+  var output;
+  require('fisheyegl');
 
   function draw(input,callback) {
     this_ = this;
@@ -13,7 +14,6 @@ module.exports = function DoNothing(options) {
       callback();
     }
     else {
-
       if (!document.querySelector('#image-sequencer-canvas')) {
         var canvas = document.createElement('canvas');
         canvas.style.display = "none";
@@ -22,7 +22,7 @@ module.exports = function DoNothing(options) {
       }
       else var canvas = document.querySelector('#image-sequencer-canvas');
 
-      distorter = require('./fisheyegl.js')({
+      distorter = FisheyeGl({
         selector: "#image-sequencer-canvas"
       });
 
diff --git a/src/modules/FisheyeGl/fisheyegl.js b/src/modules/FisheyeGl/fisheyegl.js
deleted file mode 100644
index 312dae34..00000000
--- a/src/modules/FisheyeGl/fisheyegl.js
+++ /dev/null
@@ -1,295 +0,0 @@
-module.exports = function FisheyeGl (options){
-
-  // Defaults:
-  options = options || {};
-
-  options.width = options.width || 800;
-  options.height = options.height || 600;
-
-  var model = options.model || {
-    vertex :[
-      -1.0, -1.0, 0.0,
-       1.0, -1.0, 0.0,
-       1.0,  1.0, 0.0,
-      -1.0,  1.0, 0.0
-    ],
-    indices :[
-      0, 1, 2,
-      0, 2, 3,
-      2, 1, 0,
-      3, 2, 0
-    ],
-    textureCoords : [
-      0.0, 0.0,
-      1.0, 0.0,
-      1.0, 1.0,
-      0.0, 1.0
-    ]
-  };
-
-  var lens = options.lens || {
-    a : 1.0,
-    b : 1.0,
-    Fx : 0.0,
-    Fy : 0.0,
-    scale : 1.5
-  };
-  var fov = options.fov || {
-    x : 1.0,
-    y : 1.0
-  }
-  var image = options.image || "images/barrel-distortion.png";
-
-  var selector = options.selector || "#canvas";
-  var gl = getGLContext(selector);
-
-  var vertexSrc = require("./shaders/vertex.glvs");
-  var fragmentSrc = require("./shaders/fragment3.glfs");
-
-  var program = compileShader(gl, vertexSrc, fragmentSrc)
-  gl.useProgram(program);
-
-  var aVertexPosition = gl.getAttribLocation(program, "aVertexPosition");
-  var aTextureCoord = gl.getAttribLocation(program, "aTextureCoord");
-  var uSampler = gl.getUniformLocation(program, "uSampler");
-  var uLensS = gl.getUniformLocation(program, "uLensS");
-  var uLensF = gl.getUniformLocation(program, "uLensF");
-  var uFov = gl.getUniformLocation(program, "uFov");
-
-  var vertexBuffer,
-      indexBuffer,
-      textureBuffer;
-
-  function createBuffers() {
-
-    vertexBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
-    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.vertex), gl.STATIC_DRAW);
-    gl.bindBuffer(gl.ARRAY_BUFFER, null);
-
-    indexBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
-    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(model.indices), gl.STATIC_DRAW);
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
-
-    textureBuffer = gl.createBuffer();
-    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
-    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(model.textureCoords), gl.STATIC_DRAW);
-    gl.bindBuffer(gl.ARRAY_BUFFER, null);
-
-  }
-
-  createBuffers();
-
-  function getGLContext(selector){
-    var canvas = document.querySelector(selector);
-
-    if(canvas == null){
-      throw new Error("there is no canvas on this page");
-    }
-
-    var names = ["webgl", "experimental-webgl", "webkit-3d", "moz-webgl"];
-    for (var i = 0; i < names.length; ++i) {
-      var gl;
-      try {
-        gl = canvas.getContext(names[i], { preserveDrawingBuffer: true });
-      } catch(e) {
-        continue;
-      }
-      if (gl) return gl;
-    }
-
-    throw new Error("WebGL is not supported!");
-  }
-
-  function compileShader(gl, vertexSrc, fragmentSrc){
-    var vertexShader = gl.createShader(gl.VERTEX_SHADER);
-    gl.shaderSource(vertexShader, vertexSrc);
-    gl.compileShader(vertexShader);
-
-    _checkCompile(vertexShader);
-
-    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
-    gl.shaderSource(fragmentShader, fragmentSrc);
-    gl.compileShader(fragmentShader);
-
-    _checkCompile(fragmentShader);
-
-    var program = gl.createProgram();
-
-    gl.attachShader(program, vertexShader);
-    gl.attachShader(program, fragmentShader);
-
-    gl.linkProgram(program);
-
-    return program;
-
-    function _checkCompile(shader){
-      if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
-        throw new Error(gl.getShaderInfoLog(shader));
-      }
-    }
-  }
-
-  function loadFile(url, callback){
-    var ajax = new XMLHttpRequest();
-
-    if(callback) {
-      ajax.addEventListener("readystatechange", on)
-      ajax.open("GET", url, true);
-      ajax.send(null);
-    } else {
-      ajax.open("GET", url, false);
-      ajax.send(null);
-
-      if(ajax.status == 200){
-        return ajax.responseText;
-      }
-    }
-
-    function on(){
-      if(ajax.readyState === 4){
-        //complete requset
-        if(ajax.status === 200){
-          //not error
-          callback(null, ajax.responseText);
-        } else {
-          callback(new Error("fail to load!"));
-        }
-      }
-    }
-  }
-
-  function loadImage(gl, img, callback, texture){
-    texture = texture || gl.createTexture();
-
-    gl.bindTexture(gl.TEXTURE_2D, texture);
-
-    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img);
-
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); //gl.NEAREST is also allowed, instead of gl.LINEAR, as neither mipmap.
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); //Prevents s-coordinate wrapping (repeating).
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); //Prevents t-coordinate wrapping (repeating).
-    //gl.generateMipmap(gl.TEXTURE_2D);
-    gl.bindTexture(gl.TEXTURE_2D, null);
-
-    if(callback) callback(null, texture);
-    return texture;
-  }
-
-  function loadImageFromUrl(gl, url, callback){
-    var texture = gl.createTexture();
-    var img = new Image();
-    img.addEventListener("load", function onload(){
-      loadImage(gl, img, callback, texture);
-      options.width = img.width;
-      options.height = img.height;
-      resize(
-        options.width,
-        options.height
-      )
-    });
-    img.src = url;
-    return texture;
-  }
-
-  function run(animate, callback){
-    var f = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
-      window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
-
-    // ugh
-    if(animate === true){
-      if(f){
-        f(on);
-      } else {
-        throw new Error("do not support 'requestAnimationFram'");
-      }
-    } else {
-      f(on);
-    }
-
-    var current = null;
-    function on(t){
-      if(!current) current = t;
-      var dt = t - current;
-      current = t;
-      options.runner(dt);
-      if (callback) callback();
-      if (animate === true) f(on);
-    }
-  }
-
-  function resize(w, h) {
-    gl.viewport(0, 0, w, h);
-    gl.canvas.width = w;
-    gl.canvas.height = h;
-  }
-
-  options.runner = options.runner|| function runner(dt){
-
-    gl.clearColor(0.0, 0.0, 0.0, 1.0);
-    gl.enable(gl.DEPTH_TEST);
-
-    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-    gl.enableVertexAttribArray(aVertexPosition);
-
-    gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
-    gl.vertexAttribPointer(aVertexPosition, 3, gl.FLOAT, false, 0, 0);
-
-    gl.enableVertexAttribArray(aTextureCoord);
-
-    gl.bindBuffer(gl.ARRAY_BUFFER, textureBuffer);
-    gl.vertexAttribPointer(aTextureCoord, 2, gl.FLOAT, false, 0, 0);
-
-    gl.activeTexture(gl.TEXTURE0);
-    gl.bindTexture(gl.TEXTURE_2D, texture);
-    gl.uniform1i(uSampler, 0);
-
-    gl.uniform3fv(uLensS, [lens.a, lens.b, lens.scale]);
-    gl.uniform2fv(uLensF, [lens.Fx, lens.Fy]);
-    gl.uniform2fv(uFov, [fov.x, fov.y]);
-
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer);
-    gl.drawElements(gl.TRIANGLES, model.indices.length, gl.UNSIGNED_SHORT, 0);
-
-  }
-
-  var texture;
-
-  function setImage(imageUrl, callback) {
-    texture = loadImageFromUrl(gl, imageUrl, function onImageLoad() {
-
-      run(options.animate, callback);
-
-    });
-  }
-
-  // setImage(image);
-
-  // asynchronous!
-  function getImage(format) {
-
-    var img = new Image();
-
-    img.src = gl.canvas.toDataURL(format || 'image/jpeg');
-
-    return img;
-
-  }
-
-  // external API:
-  var distorter = {
-    options:  options,
-    gl:       gl,
-    lens:     lens,
-    fov:      fov,
-    run:      run,
-    getImage: getImage,
-    setImage: setImage
-  }
-
-  return distorter;
-
-}
diff --git a/src/modules/FisheyeGl/shaders/fragment3.glfs.js b/src/modules/FisheyeGl/shaders/fragment3.glfs.js
deleted file mode 100644
index c4dbaa1c..00000000
--- a/src/modules/FisheyeGl/shaders/fragment3.glfs.js
+++ /dev/null
@@ -1,37 +0,0 @@
-module.exports = "#ifdef GL_ES\n\
-precision highp float;\n\
-#endif\n\
-\n\
-uniform vec3 uLensS;\n\
-uniform vec2 uLensF;\n\
-uniform vec2 uFov;\n\
-\n\
-uniform sampler2D uSampler;\n\
-\n\
-varying vec3 vPosition;\n\
-varying vec2 vTextureCoord;\n\
-\n\
-vec2 GLCoord2TextureCoord(vec2 glCoord) {\n\
-	return glCoord  * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n\
-}\n\
-\n\
-void main(void){\n\
-	float scale = uLensS.z;\n\
-	vec3 vPos = vPosition;\n\
-	float Fx = uLensF.x;\n\
-	float Fy = uLensF.y;\n\
-\n\
-	vec2 vMapping = vPos.xy;\n\
-	vMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\
-	vMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\
-	vMapping = vMapping * uLensS.xy;\n\
-\n\
-	vMapping = GLCoord2TextureCoord(vMapping/scale);\n\
-\n\
-	vec4 texture = texture2D(uSampler, vMapping);\n\
-	if(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\
-		texture = vec4(0.0, 0.0, 0.0, 1.0);\n\
-	}\n\
-	gl_FragColor = texture;\n\
-}\n\
-";
diff --git a/src/modules/FisheyeGl/shaders/vertex.glvs.js b/src/modules/FisheyeGl/shaders/vertex.glvs.js
deleted file mode 100644
index 6020db1a..00000000
--- a/src/modules/FisheyeGl/shaders/vertex.glvs.js
+++ /dev/null
@@ -1,12 +0,0 @@
-module.exports = "#ifdef GL_ES\n\
-precision highp float;\n\
-#endif\n\
-attribute vec3 aVertexPosition;\n\
-attribute vec2 aTextureCoord;\n\
-varying vec3 vPosition;\n\
-varying vec2 vTextureCoord;\n\
-void main(void){\n\
-	vPosition = aVertexPosition;\n\
-	vTextureCoord = aTextureCoord;\n\
-	gl_Position = vec4(vPosition,1.0);\n\
-}";