diff --git a/src/core/renderers/webgl/filters/FilterShader.js b/src/core/renderers/webgl/filters/FilterShader.js
deleted file mode 100644
index c5a7b77..0000000
--- a/src/core/renderers/webgl/filters/FilterShader.js
+++ /dev/null
@@ -1,91 +0,0 @@
-var Shader = require('pixi-gl-core').GLShader;
-
-/**
- * @class
- * @memberof PIXI
- * @extends PIXI.Shader
- * @param shaderManager {PIXI.ShaderManager} The webgl shader manager this shader works for.
- * @param [vertexSrc] {string} The source of the vertex shader.
- * @param [fragmentSrc] {string} The source of the fragment shader.
- * @param [customUniforms] {object} Custom uniforms to use to augment the built-in ones.
- * @param [fragmentSrc] {string} The source of the fragment shader.
- */
-function FilterShader(gl)
-{
-   
-    /**
-     * The vertex shader.
-     *
-     * @member {string}
-     */
-    vertexSrc = FilterShader.defaultVertexSrc;
-
-    /**
-     * The fragment shader.
-     *
-     * @member {string}
-     */
-    fragmentSrc = FilterShader.defaultFragmentSrc;
-
-    Shader.call(this, gl, vertexSrc, fragmentSrc);
-}
-
-// constructor
-FilterShader.prototype = Object.create(Shader.prototype);
-FilterShader.prototype.constructor = FilterShader;
-module.exports = FilterShader;
-
-/**
- * The default vertex shader source
- *
- * @static
- * @constant
- */
-FilterShader.defaultVertexSrc = [
-    'precision lowp float;',
-    'attribute vec2 aVertexPosition;',
-    'attribute vec2 aTextureCoord;',
-
-    'uniform mat3 projectionMatrix;',
-    'uniform mat3 otherMatrix;',
-    'varying vec2 vTextureCoord;',
-    'varying vec2 vFilterCoord;',
-
-    'void main(void){',
-    '   gl_Position = vec4((projectionMatrix * vec3(aVertexPosition, 1.0)).xy, 0.0, 1.0);',
-    '   vFilterCoord = ( otherMatrix * vec3( aTextureCoord, 1.0)  ).xy;',
-    '   vTextureCoord = aTextureCoord ;',
-    '}'
-].join('\n');
-
-/**
- * The default fragment shader source
- *
- * @static
- * @constant
- */
-FilterShader.defaultFragmentSrc = [
-    'precision lowp float;',
-
-    'varying vec2 vTextureCoord;',
-    'varying vec2 vFilterCoord;',
-    'uniform sampler2D uSampler;',
-    'uniform sampler2D filterSampler;',
-
-    'void main(void){',
-    '   vec4 masky = texture2D(filterSampler, vFilterCoord);',
-    '   vec4 sample = texture2D(uSampler, vTextureCoord);',
-    '   vec4 color;',
-    '   if(mod(vFilterCoord.x, 1.0) > 0.5){',
-    '   ',
-    '     color = vec4(1.0, 0.0, 0.0, 1.0);',
-    '   }',
-    '   else',
-    '   {',
-    '     color = vec4(0.0, 1.0, 0.0, 1.0) ;',
-    '   }',
-   // '   gl_FragColor = vec4(mod(vFilterCoord.x, 1.5), vFilterCoord.y,0.0,1.0);',
-    '   gl_FragColor = mix(sample, masky, 0.5);',
-    '   gl_FragColor *= sample.a;',
-    '}'
-].join('\n');