diff --git a/src/filters/invert/InvertFilter.js b/src/filters/invert/InvertFilter.js
index 69b8321..7ac47bf 100644
--- a/src/filters/invert/InvertFilter.js
+++ b/src/filters/invert/InvertFilter.js
@@ -1,4 +1,4 @@
-var AbstractFilter = require('./AbstractFilter');
+var core = require('../../core');
 
 /**
  * This inverts your Display Objects colors.
@@ -9,7 +9,7 @@
  */
 function InvertFilter()
 {
-    AbstractFilter.call(this,
+    core.AbstractFilter.call(this,
         // vertex shader
         null,
         // fragment shader
@@ -21,7 +21,7 @@
     );
 }
 
-InvertFilter.prototype = Object.create(AbstractFilter.prototype);
+InvertFilter.prototype = Object.create(core.AbstractFilter.prototype);
 InvertFilter.prototype.constructor = InvertFilter;
 module.exports = InvertFilter;
 

diff --git a/src/filters/invert/InvertFilter.js b/src/filters/invert/InvertFilter.js
index 69b8321..7ac47bf 100644
--- a/src/filters/invert/InvertFilter.js
+++ b/src/filters/invert/InvertFilter.js
@@ -1,4 +1,4 @@
-var AbstractFilter = require('./AbstractFilter');
+var core = require('../../core');
 
 /**
  * This inverts your Display Objects colors.
@@ -9,7 +9,7 @@
  */
 function InvertFilter()
 {
-    AbstractFilter.call(this,
+    core.AbstractFilter.call(this,
         // vertex shader
         null,
         // fragment shader
@@ -21,7 +21,7 @@
     );
 }
 
-InvertFilter.prototype = Object.create(AbstractFilter.prototype);
+InvertFilter.prototype = Object.create(core.AbstractFilter.prototype);
 InvertFilter.prototype.constructor = InvertFilter;
 module.exports = InvertFilter;
 
diff --git a/src/filters/pixelate/PixelateFilter.js b/src/filters/pixelate/PixelateFilter.js
index 3b36cdd..69c85f2 100644
--- a/src/filters/pixelate/PixelateFilter.js
+++ b/src/filters/pixelate/PixelateFilter.js
@@ -1,4 +1,4 @@
-var AbstractFilter = require('./AbstractFilter');
+var core = require('../../core');
 
 /**
  * This filter applies a pixelate effect making display objects appear 'blocky'.
@@ -9,11 +9,11 @@
  */
 function PixelateFilter()
 {
-    AbstractFilter.call(this,
+    core.AbstractFilter.call(this,
         // vertex shader
         null,
         // fragment shader
-        require('fs').readFileSync(__dirname + '/invert.frag', 'utf8'),
+        require('fs').readFileSync(__dirname + '/pixelate.frag', 'utf8'),
         // custom uniforms
         {
             dimensions: { type: '4fv',  value: new Float32Array([0, 0, 0, 0]) },
@@ -22,13 +22,14 @@
     );
 }
 
-PixelateFilter.prototype = Object.create(AbstractFilter.prototype);
+PixelateFilter.prototype = Object.create(core.AbstractFilter.prototype);
 PixelateFilter.prototype.constructor = PixelateFilter;
 module.exports = PixelateFilter;
 
 Object.defineProperties(PixelateFilter.prototype, {
     /**
-     * This a point that describes the size of the blocks. x is the width of the block and y is the height.
+     * This a point that describes the size of the blocks.
+     * x is the width of the block and y is the height.
      *
      * @member {Point}
      * @memberof PixelateFilter#