diff --git a/src/pixi/extras/TilingSprite.js b/src/pixi/extras/TilingSprite.js
index 41e88a6..4bdc23e 100644
--- a/src/pixi/extras/TilingSprite.js
+++ b/src/pixi/extras/TilingSprite.js
@@ -186,7 +186,7 @@
     renderSession.spriteBatch.stop();
 
     if (this._filters) renderSession.filterManager.popFilter();
-    if (this._mask) renderSession.maskManager.popMask(renderSession);
+    if (this._mask) renderSession.maskManager.popMask(this._mask, renderSession);
     
     renderSession.spriteBatch.start();
 };
@@ -452,4 +452,4 @@
 
     this.refreshTexture = false;
     this.tilingTexture.baseTexture._powerOf2 = true;
-};
\ No newline at end of file
+};

diff --git a/src/pixi/extras/TilingSprite.js b/src/pixi/extras/TilingSprite.js
index 41e88a6..4bdc23e 100644
--- a/src/pixi/extras/TilingSprite.js
+++ b/src/pixi/extras/TilingSprite.js
@@ -186,7 +186,7 @@
     renderSession.spriteBatch.stop();
 
     if (this._filters) renderSession.filterManager.popFilter();
-    if (this._mask) renderSession.maskManager.popMask(renderSession);
+    if (this._mask) renderSession.maskManager.popMask(this._mask, renderSession);
     
     renderSession.spriteBatch.start();
 };
@@ -452,4 +452,4 @@
 
     this.refreshTexture = false;
     this.tilingTexture.baseTexture._powerOf2 = true;
-};
\ No newline at end of file
+};
diff --git a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
index dee407e..b40efaf 100644
--- a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
@@ -10,13 +10,7 @@
 */
 PIXI.WebGLMaskManager = function(gl)
 {
-    this.maskStack = [];
-    this.maskPosition = 0;
-
     this.setContext(gl);
-
-    this.reverse = false;
-    this.count = 0;
 };
 
 /**
@@ -68,6 +62,5 @@
 */
 PIXI.WebGLMaskManager.prototype.destroy = function()
 {
-    this.maskStack = null;
     this.gl = null;
-};
\ No newline at end of file
+};

diff --git a/src/pixi/extras/TilingSprite.js b/src/pixi/extras/TilingSprite.js
index 41e88a6..4bdc23e 100644
--- a/src/pixi/extras/TilingSprite.js
+++ b/src/pixi/extras/TilingSprite.js
@@ -186,7 +186,7 @@
     renderSession.spriteBatch.stop();
 
     if (this._filters) renderSession.filterManager.popFilter();
-    if (this._mask) renderSession.maskManager.popMask(renderSession);
+    if (this._mask) renderSession.maskManager.popMask(this._mask, renderSession);
     
     renderSession.spriteBatch.start();
 };
@@ -452,4 +452,4 @@
 
     this.refreshTexture = false;
     this.tilingTexture.baseTexture._powerOf2 = true;
-};
\ No newline at end of file
+};
diff --git a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
index dee407e..b40efaf 100644
--- a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
@@ -10,13 +10,7 @@
 */
 PIXI.WebGLMaskManager = function(gl)
 {
-    this.maskStack = [];
-    this.maskPosition = 0;
-
     this.setContext(gl);
-
-    this.reverse = false;
-    this.count = 0;
 };
 
 /**
@@ -68,6 +62,5 @@
 */
 PIXI.WebGLMaskManager.prototype.destroy = function()
 {
-    this.maskStack = null;
     this.gl = null;
-};
\ No newline at end of file
+};
diff --git a/src/pixi/renderers/webgl/utils/WebGLShaderManager.js b/src/pixi/renderers/webgl/utils/WebGLShaderManager.js
index 3d7aa35..626ac21 100644
--- a/src/pixi/renderers/webgl/utils/WebGLShaderManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLShaderManager.js
@@ -14,7 +14,6 @@
     this.maxAttibs = 10;
     this.attribState = [];
     this.tempAttribState = [];
-    this.shaderMap = [];
 
     for (var i = 0; i < this.maxAttibs; i++) {
         this.attribState[i] = false;
@@ -39,7 +38,7 @@
     this.primitiveShader = new PIXI.PrimitiveShader(gl);
 
     // the next one is used for rendering triangle strips
-    this.complexPrimativeShader = new PIXI.ComplexPrimitiveShader(gl);
+    this.complexPrimitiveShader = new PIXI.ComplexPrimitiveShader(gl);
 
     // this shader is used for the default sprite rendering
     this.defaultShader = new PIXI.PixiShader(gl);
@@ -122,6 +121,8 @@
 
     this.primitiveShader.destroy();
 
+    this.complexPrimitiveShader.destroy();
+
     this.defaultShader.destroy();
 
     this.fastShader.destroy();

diff --git a/src/pixi/extras/TilingSprite.js b/src/pixi/extras/TilingSprite.js
index 41e88a6..4bdc23e 100644
--- a/src/pixi/extras/TilingSprite.js
+++ b/src/pixi/extras/TilingSprite.js
@@ -186,7 +186,7 @@
     renderSession.spriteBatch.stop();
 
     if (this._filters) renderSession.filterManager.popFilter();
-    if (this._mask) renderSession.maskManager.popMask(renderSession);
+    if (this._mask) renderSession.maskManager.popMask(this._mask, renderSession);
     
     renderSession.spriteBatch.start();
 };
@@ -452,4 +452,4 @@
 
     this.refreshTexture = false;
     this.tilingTexture.baseTexture._powerOf2 = true;
-};
\ No newline at end of file
+};
diff --git a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
index dee407e..b40efaf 100644
--- a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
@@ -10,13 +10,7 @@
 */
 PIXI.WebGLMaskManager = function(gl)
 {
-    this.maskStack = [];
-    this.maskPosition = 0;
-
     this.setContext(gl);
-
-    this.reverse = false;
-    this.count = 0;
 };
 
 /**
@@ -68,6 +62,5 @@
 */
 PIXI.WebGLMaskManager.prototype.destroy = function()
 {
-    this.maskStack = null;
     this.gl = null;
-};
\ No newline at end of file
+};
diff --git a/src/pixi/renderers/webgl/utils/WebGLShaderManager.js b/src/pixi/renderers/webgl/utils/WebGLShaderManager.js
index 3d7aa35..626ac21 100644
--- a/src/pixi/renderers/webgl/utils/WebGLShaderManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLShaderManager.js
@@ -14,7 +14,6 @@
     this.maxAttibs = 10;
     this.attribState = [];
     this.tempAttribState = [];
-    this.shaderMap = [];
 
     for (var i = 0; i < this.maxAttibs; i++) {
         this.attribState[i] = false;
@@ -39,7 +38,7 @@
     this.primitiveShader = new PIXI.PrimitiveShader(gl);
 
     // the next one is used for rendering triangle strips
-    this.complexPrimativeShader = new PIXI.ComplexPrimitiveShader(gl);
+    this.complexPrimitiveShader = new PIXI.ComplexPrimitiveShader(gl);
 
     // this shader is used for the default sprite rendering
     this.defaultShader = new PIXI.PixiShader(gl);
@@ -122,6 +121,8 @@
 
     this.primitiveShader.destroy();
 
+    this.complexPrimitiveShader.destroy();
+
     this.defaultShader.destroy();
 
     this.fastShader.destroy();
diff --git a/src/pixi/renderers/webgl/utils/WebGLStencilManager.js b/src/pixi/renderers/webgl/utils/WebGLStencilManager.js
index 5101403..411096a 100644
--- a/src/pixi/renderers/webgl/utils/WebGLStencilManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLStencilManager.js
@@ -138,7 +138,7 @@
 
     if(webGLData.mode === 1)
     {
-        shader = renderSession.shaderManager.complexPrimativeShader;
+        shader = renderSession.shaderManager.complexPrimitiveShader;
 
         renderSession.shaderManager.setShader( shader );
 
@@ -285,4 +285,4 @@
 {
     this.maskStack = null;
     this.gl = null;
-};
\ No newline at end of file
+};