diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**
diff --git a/src/pixi/primitives/Graphics.js b/src/pixi/primitives/Graphics.js
index 8fddeab..f336e8f 100644
--- a/src/pixi/primitives/Graphics.js
+++ b/src/pixi/primitives/Graphics.js
@@ -67,21 +67,44 @@
     this._webGL = [];
 
     this.isMask = false;
+
+    this.bounds = null;
+
+    this.boundsPadding = 10;
 };
 
 // constructor
 PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
 PIXI.Graphics.prototype.constructor = PIXI.Graphics;
 
-/*
-*   Not yet implemented
-*/
+/**
+ * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite.
+ * This is useful if your graphics element does not change often as it will speed up the rendering of the object
+ * It is also usful as the graphics object will always be aliased because it will be rendered using canvas
+ * Not recommended if you are conastanly redrawing the graphics element.
+ *
+ * @property cacheAsBitmap
+ * @default false
+ * @type Boolean
+ * @private
+ */
 Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", {
     get: function() {
         return  this._cacheAsBitmap;
     },
     set: function(value) {
         this._cacheAsBitmap = value;
+
+        if(this._cacheAsBitmap)
+        {
+            this._generateCachedSprite();
+        }
+        else
+        {
+            this.destroyCachedSprite();
+            this.dirty = true;
+        }
+
     }
 });
 
@@ -249,34 +272,72 @@
     this.bounds = null; //new PIXI.Rectangle();
 };
 
+/**
+ * Useful function that returns a texture of the graphics object that can then be used to create sprites
+ * This can be quite useful if your geometry is complicated and needs to be reused multiple times.
+ *
+ * @method generateTexture
+ * @return {Texture} a texture of the graphics object
+ */
+PIXI.Graphics.prototype.generateTexture = function()
+{
+    var bounds = this.getBounds();
+
+    var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+    var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+
+    canvasBuffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context);
+
+    return texture;
+};
 
 PIXI.Graphics.prototype._renderWebGL = function(renderSession)
 {
     // if the sprite is not visible or the alpha is 0 then no need to render this element
     if(this.visible === false || this.alpha === 0 || this.isMask === true)return;
     
-   
-    renderSession.spriteBatch.stop();
-
-    if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
-    if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
-  
-    // check blend mode
-    if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+    if(this._cacheAsBitmap)
     {
-        this.spriteBatch.currentBlendMode = this.blendMode;
-        var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
-        this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
-    }
- 
-    PIXI.WebGLGraphics.renderGraphics(this, renderSession);
-    
-    if(this._filters)renderSession.filterManager.popFilter();
-    if(this._mask)renderSession.maskManager.popMask(renderSession);
-      
-    renderSession.drawCount++;
+       
+        if(this.dirty)
+        {
+            this._generateCachedSprite();
+            // we will also need to update the texture on the gpu too!
+            PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl);
+            
+            this.dirty =  false;
+        }
 
-    renderSession.spriteBatch.start();
+        PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession);
+
+        return;
+    }
+    else
+    {
+        renderSession.spriteBatch.stop();
+
+        if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
+        if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
+      
+        // check blend mode
+        if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+        {
+            this.spriteBatch.currentBlendMode = this.blendMode;
+            var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
+            this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
+        }
+     
+        PIXI.WebGLGraphics.renderGraphics(this, renderSession);
+        
+        if(this._filters)renderSession.filterManager.popFilter();
+        if(this._mask)renderSession.maskManager.popMask(renderSession);
+          
+        renderSession.drawCount++;
+
+        renderSession.spriteBatch.start();
+    }
 };
 
 PIXI.Graphics.prototype._renderCanvas = function(renderSession)
@@ -425,9 +486,50 @@
         }
     }
 
-    this.bounds = new PIXI.Rectangle(minX, minY, maxX - minX, maxY - minY);
+    var padding = this.boundsPadding;
+    this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2);
 };
 
+PIXI.Graphics.prototype._generateCachedSprite = function()
+{
+    var bounds = this.getBounds();
+
+    if(!this._cachedSprite)
+    {
+        var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+        var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+        
+        this._cachedSprite = new PIXI.Sprite(texture);
+        this._cachedSprite.buffer = canvasBuffer;
+
+        this._cachedSprite.worldTransform = this.worldTransform;
+    }
+    else
+    {
+        this._cachedSprite.buffer.resize(bounds.width, bounds.height);
+    }
+
+    // leverage the anchor to account for the offest of the element
+    this._cachedSprite.anchor.x = -( bounds.x / bounds.width );
+    this._cachedSprite.anchor.y = -( bounds.y / bounds.height );
+
+   // this._cachedSprite.buffer.context.save();
+    this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context);
+   // this._cachedSprite.buffer.context.restore();
+};
+
+PIXI.Graphics.prototype.destroyCachedSprite = function()
+{
+    this._cachedSprite.texture.destroy(true);
+
+    // let the gc collect the unused sprite
+    // TODO could be object pooled!
+    this._cachedSprite = null;
+};
+
+
 // SOME TYPES:
 PIXI.Graphics.POLY = 0;
 PIXI.Graphics.RECT = 1;

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**
diff --git a/src/pixi/primitives/Graphics.js b/src/pixi/primitives/Graphics.js
index 8fddeab..f336e8f 100644
--- a/src/pixi/primitives/Graphics.js
+++ b/src/pixi/primitives/Graphics.js
@@ -67,21 +67,44 @@
     this._webGL = [];
 
     this.isMask = false;
+
+    this.bounds = null;
+
+    this.boundsPadding = 10;
 };
 
 // constructor
 PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
 PIXI.Graphics.prototype.constructor = PIXI.Graphics;
 
-/*
-*   Not yet implemented
-*/
+/**
+ * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite.
+ * This is useful if your graphics element does not change often as it will speed up the rendering of the object
+ * It is also usful as the graphics object will always be aliased because it will be rendered using canvas
+ * Not recommended if you are conastanly redrawing the graphics element.
+ *
+ * @property cacheAsBitmap
+ * @default false
+ * @type Boolean
+ * @private
+ */
 Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", {
     get: function() {
         return  this._cacheAsBitmap;
     },
     set: function(value) {
         this._cacheAsBitmap = value;
+
+        if(this._cacheAsBitmap)
+        {
+            this._generateCachedSprite();
+        }
+        else
+        {
+            this.destroyCachedSprite();
+            this.dirty = true;
+        }
+
     }
 });
 
@@ -249,34 +272,72 @@
     this.bounds = null; //new PIXI.Rectangle();
 };
 
+/**
+ * Useful function that returns a texture of the graphics object that can then be used to create sprites
+ * This can be quite useful if your geometry is complicated and needs to be reused multiple times.
+ *
+ * @method generateTexture
+ * @return {Texture} a texture of the graphics object
+ */
+PIXI.Graphics.prototype.generateTexture = function()
+{
+    var bounds = this.getBounds();
+
+    var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+    var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+
+    canvasBuffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context);
+
+    return texture;
+};
 
 PIXI.Graphics.prototype._renderWebGL = function(renderSession)
 {
     // if the sprite is not visible or the alpha is 0 then no need to render this element
     if(this.visible === false || this.alpha === 0 || this.isMask === true)return;
     
-   
-    renderSession.spriteBatch.stop();
-
-    if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
-    if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
-  
-    // check blend mode
-    if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+    if(this._cacheAsBitmap)
     {
-        this.spriteBatch.currentBlendMode = this.blendMode;
-        var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
-        this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
-    }
- 
-    PIXI.WebGLGraphics.renderGraphics(this, renderSession);
-    
-    if(this._filters)renderSession.filterManager.popFilter();
-    if(this._mask)renderSession.maskManager.popMask(renderSession);
-      
-    renderSession.drawCount++;
+       
+        if(this.dirty)
+        {
+            this._generateCachedSprite();
+            // we will also need to update the texture on the gpu too!
+            PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl);
+            
+            this.dirty =  false;
+        }
 
-    renderSession.spriteBatch.start();
+        PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession);
+
+        return;
+    }
+    else
+    {
+        renderSession.spriteBatch.stop();
+
+        if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
+        if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
+      
+        // check blend mode
+        if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+        {
+            this.spriteBatch.currentBlendMode = this.blendMode;
+            var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
+            this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
+        }
+     
+        PIXI.WebGLGraphics.renderGraphics(this, renderSession);
+        
+        if(this._filters)renderSession.filterManager.popFilter();
+        if(this._mask)renderSession.maskManager.popMask(renderSession);
+          
+        renderSession.drawCount++;
+
+        renderSession.spriteBatch.start();
+    }
 };
 
 PIXI.Graphics.prototype._renderCanvas = function(renderSession)
@@ -425,9 +486,50 @@
         }
     }
 
-    this.bounds = new PIXI.Rectangle(minX, minY, maxX - minX, maxY - minY);
+    var padding = this.boundsPadding;
+    this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2);
 };
 
+PIXI.Graphics.prototype._generateCachedSprite = function()
+{
+    var bounds = this.getBounds();
+
+    if(!this._cachedSprite)
+    {
+        var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+        var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+        
+        this._cachedSprite = new PIXI.Sprite(texture);
+        this._cachedSprite.buffer = canvasBuffer;
+
+        this._cachedSprite.worldTransform = this.worldTransform;
+    }
+    else
+    {
+        this._cachedSprite.buffer.resize(bounds.width, bounds.height);
+    }
+
+    // leverage the anchor to account for the offest of the element
+    this._cachedSprite.anchor.x = -( bounds.x / bounds.width );
+    this._cachedSprite.anchor.y = -( bounds.y / bounds.height );
+
+   // this._cachedSprite.buffer.context.save();
+    this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context);
+   // this._cachedSprite.buffer.context.restore();
+};
+
+PIXI.Graphics.prototype.destroyCachedSprite = function()
+{
+    this._cachedSprite.texture.destroy(true);
+
+    // let the gc collect the unused sprite
+    // TODO could be object pooled!
+    this._cachedSprite = null;
+};
+
+
 // SOME TYPES:
 PIXI.Graphics.POLY = 0;
 PIXI.Graphics.RECT = 1;
diff --git a/src/pixi/renderers/canvas/CanvasRenderer.js b/src/pixi/renderers/canvas/CanvasRenderer.js
index d98e6fd..867b7f9 100644
--- a/src/pixi/renderers/canvas/CanvasRenderer.js
+++ b/src/pixi/renderers/canvas/CanvasRenderer.js
@@ -120,8 +120,8 @@
     //stage.__childrenRemoved = [];
 
     // update textures if need be
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
 
     PIXI.visibleCount++;
     stage.updateTransform();
@@ -149,7 +149,7 @@
     // remove frame updates..
     if(PIXI.Texture.frameUpdates.length > 0)
     {
-        PIXI.Texture.frameUpdates = [];
+        PIXI.Texture.frameUpdates.length = 0;
     }
 };
 

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**
diff --git a/src/pixi/primitives/Graphics.js b/src/pixi/primitives/Graphics.js
index 8fddeab..f336e8f 100644
--- a/src/pixi/primitives/Graphics.js
+++ b/src/pixi/primitives/Graphics.js
@@ -67,21 +67,44 @@
     this._webGL = [];
 
     this.isMask = false;
+
+    this.bounds = null;
+
+    this.boundsPadding = 10;
 };
 
 // constructor
 PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
 PIXI.Graphics.prototype.constructor = PIXI.Graphics;
 
-/*
-*   Not yet implemented
-*/
+/**
+ * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite.
+ * This is useful if your graphics element does not change often as it will speed up the rendering of the object
+ * It is also usful as the graphics object will always be aliased because it will be rendered using canvas
+ * Not recommended if you are conastanly redrawing the graphics element.
+ *
+ * @property cacheAsBitmap
+ * @default false
+ * @type Boolean
+ * @private
+ */
 Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", {
     get: function() {
         return  this._cacheAsBitmap;
     },
     set: function(value) {
         this._cacheAsBitmap = value;
+
+        if(this._cacheAsBitmap)
+        {
+            this._generateCachedSprite();
+        }
+        else
+        {
+            this.destroyCachedSprite();
+            this.dirty = true;
+        }
+
     }
 });
 
@@ -249,34 +272,72 @@
     this.bounds = null; //new PIXI.Rectangle();
 };
 
+/**
+ * Useful function that returns a texture of the graphics object that can then be used to create sprites
+ * This can be quite useful if your geometry is complicated and needs to be reused multiple times.
+ *
+ * @method generateTexture
+ * @return {Texture} a texture of the graphics object
+ */
+PIXI.Graphics.prototype.generateTexture = function()
+{
+    var bounds = this.getBounds();
+
+    var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+    var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+
+    canvasBuffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context);
+
+    return texture;
+};
 
 PIXI.Graphics.prototype._renderWebGL = function(renderSession)
 {
     // if the sprite is not visible or the alpha is 0 then no need to render this element
     if(this.visible === false || this.alpha === 0 || this.isMask === true)return;
     
-   
-    renderSession.spriteBatch.stop();
-
-    if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
-    if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
-  
-    // check blend mode
-    if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+    if(this._cacheAsBitmap)
     {
-        this.spriteBatch.currentBlendMode = this.blendMode;
-        var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
-        this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
-    }
- 
-    PIXI.WebGLGraphics.renderGraphics(this, renderSession);
-    
-    if(this._filters)renderSession.filterManager.popFilter();
-    if(this._mask)renderSession.maskManager.popMask(renderSession);
-      
-    renderSession.drawCount++;
+       
+        if(this.dirty)
+        {
+            this._generateCachedSprite();
+            // we will also need to update the texture on the gpu too!
+            PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl);
+            
+            this.dirty =  false;
+        }
 
-    renderSession.spriteBatch.start();
+        PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession);
+
+        return;
+    }
+    else
+    {
+        renderSession.spriteBatch.stop();
+
+        if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
+        if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
+      
+        // check blend mode
+        if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+        {
+            this.spriteBatch.currentBlendMode = this.blendMode;
+            var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
+            this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
+        }
+     
+        PIXI.WebGLGraphics.renderGraphics(this, renderSession);
+        
+        if(this._filters)renderSession.filterManager.popFilter();
+        if(this._mask)renderSession.maskManager.popMask(renderSession);
+          
+        renderSession.drawCount++;
+
+        renderSession.spriteBatch.start();
+    }
 };
 
 PIXI.Graphics.prototype._renderCanvas = function(renderSession)
@@ -425,9 +486,50 @@
         }
     }
 
-    this.bounds = new PIXI.Rectangle(minX, minY, maxX - minX, maxY - minY);
+    var padding = this.boundsPadding;
+    this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2);
 };
 
+PIXI.Graphics.prototype._generateCachedSprite = function()
+{
+    var bounds = this.getBounds();
+
+    if(!this._cachedSprite)
+    {
+        var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+        var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+        
+        this._cachedSprite = new PIXI.Sprite(texture);
+        this._cachedSprite.buffer = canvasBuffer;
+
+        this._cachedSprite.worldTransform = this.worldTransform;
+    }
+    else
+    {
+        this._cachedSprite.buffer.resize(bounds.width, bounds.height);
+    }
+
+    // leverage the anchor to account for the offest of the element
+    this._cachedSprite.anchor.x = -( bounds.x / bounds.width );
+    this._cachedSprite.anchor.y = -( bounds.y / bounds.height );
+
+   // this._cachedSprite.buffer.context.save();
+    this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context);
+   // this._cachedSprite.buffer.context.restore();
+};
+
+PIXI.Graphics.prototype.destroyCachedSprite = function()
+{
+    this._cachedSprite.texture.destroy(true);
+
+    // let the gc collect the unused sprite
+    // TODO could be object pooled!
+    this._cachedSprite = null;
+};
+
+
 // SOME TYPES:
 PIXI.Graphics.POLY = 0;
 PIXI.Graphics.RECT = 1;
diff --git a/src/pixi/renderers/canvas/CanvasRenderer.js b/src/pixi/renderers/canvas/CanvasRenderer.js
index d98e6fd..867b7f9 100644
--- a/src/pixi/renderers/canvas/CanvasRenderer.js
+++ b/src/pixi/renderers/canvas/CanvasRenderer.js
@@ -120,8 +120,8 @@
     //stage.__childrenRemoved = [];
 
     // update textures if need be
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
 
     PIXI.visibleCount++;
     stage.updateTransform();
@@ -149,7 +149,7 @@
     // remove frame updates..
     if(PIXI.Texture.frameUpdates.length > 0)
     {
-        PIXI.Texture.frameUpdates = [];
+        PIXI.Texture.frameUpdates.length = 0;
     }
 };
 
diff --git a/src/pixi/renderers/webgl/WebGLRenderer.js b/src/pixi/renderers/webgl/WebGLRenderer.js
index 58210ea..2cb7f99 100644
--- a/src/pixi/renderers/webgl/WebGLRenderer.js
+++ b/src/pixi/renderers/webgl/WebGLRenderer.js
@@ -2,13 +2,7 @@
  * @author Mat Groves http://matgroves.com/ @Doormat23
  */
 
-PIXI._defaultFrame = new PIXI.Rectangle(0,0,1,1);
-
-// an instance of the gl context..
-// only one at the moment :/
-PIXI.gl = null;
-
-
+PIXI.glContexts = []; // this is where we store the webGL contexts for easy access.
 
 /**
  * the WebGLRenderer is draws the stage and all its content onto a webGL enabled canvas. This renderer
@@ -46,8 +40,6 @@
     this.view.addEventListener('webglcontextlost', function(event) { scope.handleContextLost(event); }, false);
     this.view.addEventListener('webglcontextrestored', function(event) { scope.handleContextRestored(event); }, false);
 
-    this.batchs = [];
-
     this.options = {
         alpha: this.transparent,
         antialias:!!antialias, // SPEED UP??
@@ -71,6 +63,8 @@
     var gl = this.gl;
     this.glContextId = gl.id = PIXI.WebGLRenderer.glContextId ++;
 
+    PIXI.glContexts[this.glContextId] = gl;
+
     if(!PIXI.blendModesWebGL)
     {
         PIXI.blendModesWebGL = [];
@@ -111,8 +105,6 @@
 
     gl.useProgram(this.shaderManager.defaultShader.program);
 
-    PIXI.WebGLRenderer.gl = gl;
-
     gl.disable(gl.DEPTH_TEST);
     gl.disable(gl.CULL_FACE);
 
@@ -242,59 +234,12 @@
     for (i = 0; i < PIXI.texturesToDestroy.length; i++)
         PIXI.WebGLRenderer.destroyTexture(PIXI.texturesToDestroy[i]);
 
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
-    PIXI.Texture.frameUpdates = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
+    PIXI.Texture.frameUpdates.length = 0;
 };
 
 /**
- * Updates a loaded webgl texture
- *
- * @static
- * @method updateTexture
- * @param texture {Texture} The texture to update
- * @private
- */
-
- /*
-PIXI.WebGLRenderer.updateTexture = function(texture)
-{
-    //TODO break this out into a texture manager...
-    var gl = this.gl;
-
-    if(!texture._glTexture)
-    {
-        texture._glTexture = gl.createTexture();
-    }
-
-    if(texture.hasLoaded)
-    {
-        gl.bindTexture(gl.TEXTURE_2D, texture._glTexture);
-        gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
-
-        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, texture.source);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-
-        // reguler...
-
-        if(!texture._powerOf2)
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-        }
-        else
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
-        }
-
-        gl.bindTexture(gl.TEXTURE_2D, null);
-    }
-};
-*/
-
-/**
  * Destroys a loaded webgl texture
  *
  * @method destroyTexture
@@ -304,13 +249,19 @@
 PIXI.WebGLRenderer.destroyTexture = function(texture)
 {
     //TODO break this out into a texture manager...
-    var gl = PIXI.gl;
 
-    if(texture._glTexture)
+    for (var i = texture._glTextures.length - 1; i >= 0; i--)
     {
-        texture._glTexture = gl.createTexture();
-        gl.deleteTexture(gl.TEXTURE_2D, texture._glTexture);
+        var glTexture = texture._glTextures[i];
+        var gl = PIXI.glContexts[i];
+
+        if(gl && glTexture)
+        {
+            gl.deleteTexture(glTexture);
+        }
     }
+
+    texture._glTextures.length = 0;
 };
 
 PIXI.WebGLRenderer.updateTextureFrame = function(texture)
@@ -373,6 +324,8 @@
 
         gl.bindTexture(gl.TEXTURE_2D, null);
     }
+
+    return  texture._glTextures[gl.id];
 };
 
 PIXI.updateWebGLTexture = function(texture, gl)

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**
diff --git a/src/pixi/primitives/Graphics.js b/src/pixi/primitives/Graphics.js
index 8fddeab..f336e8f 100644
--- a/src/pixi/primitives/Graphics.js
+++ b/src/pixi/primitives/Graphics.js
@@ -67,21 +67,44 @@
     this._webGL = [];
 
     this.isMask = false;
+
+    this.bounds = null;
+
+    this.boundsPadding = 10;
 };
 
 // constructor
 PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
 PIXI.Graphics.prototype.constructor = PIXI.Graphics;
 
-/*
-*   Not yet implemented
-*/
+/**
+ * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite.
+ * This is useful if your graphics element does not change often as it will speed up the rendering of the object
+ * It is also usful as the graphics object will always be aliased because it will be rendered using canvas
+ * Not recommended if you are conastanly redrawing the graphics element.
+ *
+ * @property cacheAsBitmap
+ * @default false
+ * @type Boolean
+ * @private
+ */
 Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", {
     get: function() {
         return  this._cacheAsBitmap;
     },
     set: function(value) {
         this._cacheAsBitmap = value;
+
+        if(this._cacheAsBitmap)
+        {
+            this._generateCachedSprite();
+        }
+        else
+        {
+            this.destroyCachedSprite();
+            this.dirty = true;
+        }
+
     }
 });
 
@@ -249,34 +272,72 @@
     this.bounds = null; //new PIXI.Rectangle();
 };
 
+/**
+ * Useful function that returns a texture of the graphics object that can then be used to create sprites
+ * This can be quite useful if your geometry is complicated and needs to be reused multiple times.
+ *
+ * @method generateTexture
+ * @return {Texture} a texture of the graphics object
+ */
+PIXI.Graphics.prototype.generateTexture = function()
+{
+    var bounds = this.getBounds();
+
+    var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+    var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+
+    canvasBuffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context);
+
+    return texture;
+};
 
 PIXI.Graphics.prototype._renderWebGL = function(renderSession)
 {
     // if the sprite is not visible or the alpha is 0 then no need to render this element
     if(this.visible === false || this.alpha === 0 || this.isMask === true)return;
     
-   
-    renderSession.spriteBatch.stop();
-
-    if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
-    if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
-  
-    // check blend mode
-    if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+    if(this._cacheAsBitmap)
     {
-        this.spriteBatch.currentBlendMode = this.blendMode;
-        var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
-        this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
-    }
- 
-    PIXI.WebGLGraphics.renderGraphics(this, renderSession);
-    
-    if(this._filters)renderSession.filterManager.popFilter();
-    if(this._mask)renderSession.maskManager.popMask(renderSession);
-      
-    renderSession.drawCount++;
+       
+        if(this.dirty)
+        {
+            this._generateCachedSprite();
+            // we will also need to update the texture on the gpu too!
+            PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl);
+            
+            this.dirty =  false;
+        }
 
-    renderSession.spriteBatch.start();
+        PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession);
+
+        return;
+    }
+    else
+    {
+        renderSession.spriteBatch.stop();
+
+        if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
+        if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
+      
+        // check blend mode
+        if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+        {
+            this.spriteBatch.currentBlendMode = this.blendMode;
+            var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
+            this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
+        }
+     
+        PIXI.WebGLGraphics.renderGraphics(this, renderSession);
+        
+        if(this._filters)renderSession.filterManager.popFilter();
+        if(this._mask)renderSession.maskManager.popMask(renderSession);
+          
+        renderSession.drawCount++;
+
+        renderSession.spriteBatch.start();
+    }
 };
 
 PIXI.Graphics.prototype._renderCanvas = function(renderSession)
@@ -425,9 +486,50 @@
         }
     }
 
-    this.bounds = new PIXI.Rectangle(minX, minY, maxX - minX, maxY - minY);
+    var padding = this.boundsPadding;
+    this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2);
 };
 
+PIXI.Graphics.prototype._generateCachedSprite = function()
+{
+    var bounds = this.getBounds();
+
+    if(!this._cachedSprite)
+    {
+        var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+        var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+        
+        this._cachedSprite = new PIXI.Sprite(texture);
+        this._cachedSprite.buffer = canvasBuffer;
+
+        this._cachedSprite.worldTransform = this.worldTransform;
+    }
+    else
+    {
+        this._cachedSprite.buffer.resize(bounds.width, bounds.height);
+    }
+
+    // leverage the anchor to account for the offest of the element
+    this._cachedSprite.anchor.x = -( bounds.x / bounds.width );
+    this._cachedSprite.anchor.y = -( bounds.y / bounds.height );
+
+   // this._cachedSprite.buffer.context.save();
+    this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context);
+   // this._cachedSprite.buffer.context.restore();
+};
+
+PIXI.Graphics.prototype.destroyCachedSprite = function()
+{
+    this._cachedSprite.texture.destroy(true);
+
+    // let the gc collect the unused sprite
+    // TODO could be object pooled!
+    this._cachedSprite = null;
+};
+
+
 // SOME TYPES:
 PIXI.Graphics.POLY = 0;
 PIXI.Graphics.RECT = 1;
diff --git a/src/pixi/renderers/canvas/CanvasRenderer.js b/src/pixi/renderers/canvas/CanvasRenderer.js
index d98e6fd..867b7f9 100644
--- a/src/pixi/renderers/canvas/CanvasRenderer.js
+++ b/src/pixi/renderers/canvas/CanvasRenderer.js
@@ -120,8 +120,8 @@
     //stage.__childrenRemoved = [];
 
     // update textures if need be
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
 
     PIXI.visibleCount++;
     stage.updateTransform();
@@ -149,7 +149,7 @@
     // remove frame updates..
     if(PIXI.Texture.frameUpdates.length > 0)
     {
-        PIXI.Texture.frameUpdates = [];
+        PIXI.Texture.frameUpdates.length = 0;
     }
 };
 
diff --git a/src/pixi/renderers/webgl/WebGLRenderer.js b/src/pixi/renderers/webgl/WebGLRenderer.js
index 58210ea..2cb7f99 100644
--- a/src/pixi/renderers/webgl/WebGLRenderer.js
+++ b/src/pixi/renderers/webgl/WebGLRenderer.js
@@ -2,13 +2,7 @@
  * @author Mat Groves http://matgroves.com/ @Doormat23
  */
 
-PIXI._defaultFrame = new PIXI.Rectangle(0,0,1,1);
-
-// an instance of the gl context..
-// only one at the moment :/
-PIXI.gl = null;
-
-
+PIXI.glContexts = []; // this is where we store the webGL contexts for easy access.
 
 /**
  * the WebGLRenderer is draws the stage and all its content onto a webGL enabled canvas. This renderer
@@ -46,8 +40,6 @@
     this.view.addEventListener('webglcontextlost', function(event) { scope.handleContextLost(event); }, false);
     this.view.addEventListener('webglcontextrestored', function(event) { scope.handleContextRestored(event); }, false);
 
-    this.batchs = [];
-
     this.options = {
         alpha: this.transparent,
         antialias:!!antialias, // SPEED UP??
@@ -71,6 +63,8 @@
     var gl = this.gl;
     this.glContextId = gl.id = PIXI.WebGLRenderer.glContextId ++;
 
+    PIXI.glContexts[this.glContextId] = gl;
+
     if(!PIXI.blendModesWebGL)
     {
         PIXI.blendModesWebGL = [];
@@ -111,8 +105,6 @@
 
     gl.useProgram(this.shaderManager.defaultShader.program);
 
-    PIXI.WebGLRenderer.gl = gl;
-
     gl.disable(gl.DEPTH_TEST);
     gl.disable(gl.CULL_FACE);
 
@@ -242,59 +234,12 @@
     for (i = 0; i < PIXI.texturesToDestroy.length; i++)
         PIXI.WebGLRenderer.destroyTexture(PIXI.texturesToDestroy[i]);
 
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
-    PIXI.Texture.frameUpdates = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
+    PIXI.Texture.frameUpdates.length = 0;
 };
 
 /**
- * Updates a loaded webgl texture
- *
- * @static
- * @method updateTexture
- * @param texture {Texture} The texture to update
- * @private
- */
-
- /*
-PIXI.WebGLRenderer.updateTexture = function(texture)
-{
-    //TODO break this out into a texture manager...
-    var gl = this.gl;
-
-    if(!texture._glTexture)
-    {
-        texture._glTexture = gl.createTexture();
-    }
-
-    if(texture.hasLoaded)
-    {
-        gl.bindTexture(gl.TEXTURE_2D, texture._glTexture);
-        gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
-
-        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, texture.source);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-
-        // reguler...
-
-        if(!texture._powerOf2)
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-        }
-        else
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
-        }
-
-        gl.bindTexture(gl.TEXTURE_2D, null);
-    }
-};
-*/
-
-/**
  * Destroys a loaded webgl texture
  *
  * @method destroyTexture
@@ -304,13 +249,19 @@
 PIXI.WebGLRenderer.destroyTexture = function(texture)
 {
     //TODO break this out into a texture manager...
-    var gl = PIXI.gl;
 
-    if(texture._glTexture)
+    for (var i = texture._glTextures.length - 1; i >= 0; i--)
     {
-        texture._glTexture = gl.createTexture();
-        gl.deleteTexture(gl.TEXTURE_2D, texture._glTexture);
+        var glTexture = texture._glTextures[i];
+        var gl = PIXI.glContexts[i];
+
+        if(gl && glTexture)
+        {
+            gl.deleteTexture(glTexture);
+        }
     }
+
+    texture._glTextures.length = 0;
 };
 
 PIXI.WebGLRenderer.updateTextureFrame = function(texture)
@@ -373,6 +324,8 @@
 
         gl.bindTexture(gl.TEXTURE_2D, null);
     }
+
+    return  texture._glTextures[gl.id];
 };
 
 PIXI.updateWebGLTexture = function(texture, gl)
diff --git a/src/pixi/renderers/webgl/utils/WebGLGraphics.js b/src/pixi/renderers/webgl/utils/WebGLGraphics.js
index fff1223..72fd085 100644
--- a/src/pixi/renderers/webgl/utils/WebGLGraphics.js
+++ b/src/pixi/renderers/webgl/utils/WebGLGraphics.js
@@ -193,13 +193,18 @@
 
     if(graphicsData.lineWidth)
     {
+        var tempPoints = graphicsData.points;
+
         graphicsData.points = [x, y,
                   x + width, y,
                   x + width, y + height,
                   x, y + height,
                   x, y];
 
+
         PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
+
+        graphicsData.points = tempPoints;
     }
 };
 
@@ -260,6 +265,8 @@
 
     if(graphicsData.lineWidth)
     {
+        var tempPoints = graphicsData.points;
+
         graphicsData.points = [];
 
         for (i = 0; i < totalSegs + 1; i++)
@@ -269,6 +276,8 @@
         }
 
         PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
+
+        graphicsData.points = tempPoints;
     }
 };
 

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**
diff --git a/src/pixi/primitives/Graphics.js b/src/pixi/primitives/Graphics.js
index 8fddeab..f336e8f 100644
--- a/src/pixi/primitives/Graphics.js
+++ b/src/pixi/primitives/Graphics.js
@@ -67,21 +67,44 @@
     this._webGL = [];
 
     this.isMask = false;
+
+    this.bounds = null;
+
+    this.boundsPadding = 10;
 };
 
 // constructor
 PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
 PIXI.Graphics.prototype.constructor = PIXI.Graphics;
 
-/*
-*   Not yet implemented
-*/
+/**
+ * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite.
+ * This is useful if your graphics element does not change often as it will speed up the rendering of the object
+ * It is also usful as the graphics object will always be aliased because it will be rendered using canvas
+ * Not recommended if you are conastanly redrawing the graphics element.
+ *
+ * @property cacheAsBitmap
+ * @default false
+ * @type Boolean
+ * @private
+ */
 Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", {
     get: function() {
         return  this._cacheAsBitmap;
     },
     set: function(value) {
         this._cacheAsBitmap = value;
+
+        if(this._cacheAsBitmap)
+        {
+            this._generateCachedSprite();
+        }
+        else
+        {
+            this.destroyCachedSprite();
+            this.dirty = true;
+        }
+
     }
 });
 
@@ -249,34 +272,72 @@
     this.bounds = null; //new PIXI.Rectangle();
 };
 
+/**
+ * Useful function that returns a texture of the graphics object that can then be used to create sprites
+ * This can be quite useful if your geometry is complicated and needs to be reused multiple times.
+ *
+ * @method generateTexture
+ * @return {Texture} a texture of the graphics object
+ */
+PIXI.Graphics.prototype.generateTexture = function()
+{
+    var bounds = this.getBounds();
+
+    var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+    var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+
+    canvasBuffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context);
+
+    return texture;
+};
 
 PIXI.Graphics.prototype._renderWebGL = function(renderSession)
 {
     // if the sprite is not visible or the alpha is 0 then no need to render this element
     if(this.visible === false || this.alpha === 0 || this.isMask === true)return;
     
-   
-    renderSession.spriteBatch.stop();
-
-    if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
-    if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
-  
-    // check blend mode
-    if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+    if(this._cacheAsBitmap)
     {
-        this.spriteBatch.currentBlendMode = this.blendMode;
-        var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
-        this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
-    }
- 
-    PIXI.WebGLGraphics.renderGraphics(this, renderSession);
-    
-    if(this._filters)renderSession.filterManager.popFilter();
-    if(this._mask)renderSession.maskManager.popMask(renderSession);
-      
-    renderSession.drawCount++;
+       
+        if(this.dirty)
+        {
+            this._generateCachedSprite();
+            // we will also need to update the texture on the gpu too!
+            PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl);
+            
+            this.dirty =  false;
+        }
 
-    renderSession.spriteBatch.start();
+        PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession);
+
+        return;
+    }
+    else
+    {
+        renderSession.spriteBatch.stop();
+
+        if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
+        if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
+      
+        // check blend mode
+        if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+        {
+            this.spriteBatch.currentBlendMode = this.blendMode;
+            var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
+            this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
+        }
+     
+        PIXI.WebGLGraphics.renderGraphics(this, renderSession);
+        
+        if(this._filters)renderSession.filterManager.popFilter();
+        if(this._mask)renderSession.maskManager.popMask(renderSession);
+          
+        renderSession.drawCount++;
+
+        renderSession.spriteBatch.start();
+    }
 };
 
 PIXI.Graphics.prototype._renderCanvas = function(renderSession)
@@ -425,9 +486,50 @@
         }
     }
 
-    this.bounds = new PIXI.Rectangle(minX, minY, maxX - minX, maxY - minY);
+    var padding = this.boundsPadding;
+    this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2);
 };
 
+PIXI.Graphics.prototype._generateCachedSprite = function()
+{
+    var bounds = this.getBounds();
+
+    if(!this._cachedSprite)
+    {
+        var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+        var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+        
+        this._cachedSprite = new PIXI.Sprite(texture);
+        this._cachedSprite.buffer = canvasBuffer;
+
+        this._cachedSprite.worldTransform = this.worldTransform;
+    }
+    else
+    {
+        this._cachedSprite.buffer.resize(bounds.width, bounds.height);
+    }
+
+    // leverage the anchor to account for the offest of the element
+    this._cachedSprite.anchor.x = -( bounds.x / bounds.width );
+    this._cachedSprite.anchor.y = -( bounds.y / bounds.height );
+
+   // this._cachedSprite.buffer.context.save();
+    this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context);
+   // this._cachedSprite.buffer.context.restore();
+};
+
+PIXI.Graphics.prototype.destroyCachedSprite = function()
+{
+    this._cachedSprite.texture.destroy(true);
+
+    // let the gc collect the unused sprite
+    // TODO could be object pooled!
+    this._cachedSprite = null;
+};
+
+
 // SOME TYPES:
 PIXI.Graphics.POLY = 0;
 PIXI.Graphics.RECT = 1;
diff --git a/src/pixi/renderers/canvas/CanvasRenderer.js b/src/pixi/renderers/canvas/CanvasRenderer.js
index d98e6fd..867b7f9 100644
--- a/src/pixi/renderers/canvas/CanvasRenderer.js
+++ b/src/pixi/renderers/canvas/CanvasRenderer.js
@@ -120,8 +120,8 @@
     //stage.__childrenRemoved = [];
 
     // update textures if need be
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
 
     PIXI.visibleCount++;
     stage.updateTransform();
@@ -149,7 +149,7 @@
     // remove frame updates..
     if(PIXI.Texture.frameUpdates.length > 0)
     {
-        PIXI.Texture.frameUpdates = [];
+        PIXI.Texture.frameUpdates.length = 0;
     }
 };
 
diff --git a/src/pixi/renderers/webgl/WebGLRenderer.js b/src/pixi/renderers/webgl/WebGLRenderer.js
index 58210ea..2cb7f99 100644
--- a/src/pixi/renderers/webgl/WebGLRenderer.js
+++ b/src/pixi/renderers/webgl/WebGLRenderer.js
@@ -2,13 +2,7 @@
  * @author Mat Groves http://matgroves.com/ @Doormat23
  */
 
-PIXI._defaultFrame = new PIXI.Rectangle(0,0,1,1);
-
-// an instance of the gl context..
-// only one at the moment :/
-PIXI.gl = null;
-
-
+PIXI.glContexts = []; // this is where we store the webGL contexts for easy access.
 
 /**
  * the WebGLRenderer is draws the stage and all its content onto a webGL enabled canvas. This renderer
@@ -46,8 +40,6 @@
     this.view.addEventListener('webglcontextlost', function(event) { scope.handleContextLost(event); }, false);
     this.view.addEventListener('webglcontextrestored', function(event) { scope.handleContextRestored(event); }, false);
 
-    this.batchs = [];
-
     this.options = {
         alpha: this.transparent,
         antialias:!!antialias, // SPEED UP??
@@ -71,6 +63,8 @@
     var gl = this.gl;
     this.glContextId = gl.id = PIXI.WebGLRenderer.glContextId ++;
 
+    PIXI.glContexts[this.glContextId] = gl;
+
     if(!PIXI.blendModesWebGL)
     {
         PIXI.blendModesWebGL = [];
@@ -111,8 +105,6 @@
 
     gl.useProgram(this.shaderManager.defaultShader.program);
 
-    PIXI.WebGLRenderer.gl = gl;
-
     gl.disable(gl.DEPTH_TEST);
     gl.disable(gl.CULL_FACE);
 
@@ -242,59 +234,12 @@
     for (i = 0; i < PIXI.texturesToDestroy.length; i++)
         PIXI.WebGLRenderer.destroyTexture(PIXI.texturesToDestroy[i]);
 
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
-    PIXI.Texture.frameUpdates = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
+    PIXI.Texture.frameUpdates.length = 0;
 };
 
 /**
- * Updates a loaded webgl texture
- *
- * @static
- * @method updateTexture
- * @param texture {Texture} The texture to update
- * @private
- */
-
- /*
-PIXI.WebGLRenderer.updateTexture = function(texture)
-{
-    //TODO break this out into a texture manager...
-    var gl = this.gl;
-
-    if(!texture._glTexture)
-    {
-        texture._glTexture = gl.createTexture();
-    }
-
-    if(texture.hasLoaded)
-    {
-        gl.bindTexture(gl.TEXTURE_2D, texture._glTexture);
-        gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
-
-        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, texture.source);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-
-        // reguler...
-
-        if(!texture._powerOf2)
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-        }
-        else
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
-        }
-
-        gl.bindTexture(gl.TEXTURE_2D, null);
-    }
-};
-*/
-
-/**
  * Destroys a loaded webgl texture
  *
  * @method destroyTexture
@@ -304,13 +249,19 @@
 PIXI.WebGLRenderer.destroyTexture = function(texture)
 {
     //TODO break this out into a texture manager...
-    var gl = PIXI.gl;
 
-    if(texture._glTexture)
+    for (var i = texture._glTextures.length - 1; i >= 0; i--)
     {
-        texture._glTexture = gl.createTexture();
-        gl.deleteTexture(gl.TEXTURE_2D, texture._glTexture);
+        var glTexture = texture._glTextures[i];
+        var gl = PIXI.glContexts[i];
+
+        if(gl && glTexture)
+        {
+            gl.deleteTexture(glTexture);
+        }
     }
+
+    texture._glTextures.length = 0;
 };
 
 PIXI.WebGLRenderer.updateTextureFrame = function(texture)
@@ -373,6 +324,8 @@
 
         gl.bindTexture(gl.TEXTURE_2D, null);
     }
+
+    return  texture._glTextures[gl.id];
 };
 
 PIXI.updateWebGLTexture = function(texture, gl)
diff --git a/src/pixi/renderers/webgl/utils/WebGLGraphics.js b/src/pixi/renderers/webgl/utils/WebGLGraphics.js
index fff1223..72fd085 100644
--- a/src/pixi/renderers/webgl/utils/WebGLGraphics.js
+++ b/src/pixi/renderers/webgl/utils/WebGLGraphics.js
@@ -193,13 +193,18 @@
 
     if(graphicsData.lineWidth)
     {
+        var tempPoints = graphicsData.points;
+
         graphicsData.points = [x, y,
                   x + width, y,
                   x + width, y + height,
                   x, y + height,
                   x, y];
 
+
         PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
+
+        graphicsData.points = tempPoints;
     }
 };
 
@@ -260,6 +265,8 @@
 
     if(graphicsData.lineWidth)
     {
+        var tempPoints = graphicsData.points;
+
         graphicsData.points = [];
 
         for (i = 0; i < totalSegs + 1; i++)
@@ -269,6 +276,8 @@
         }
 
         PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
+
+        graphicsData.points = tempPoints;
     }
 };
 
diff --git a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
index 93614cf..8e6f46c 100644
--- a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
@@ -29,7 +29,7 @@
 
     this.maskStack.push(maskData);
     
-    gl.colorMask(false, false, false, false);
+    gl.colorMask(false, false, false, true);
     gl.stencilOp(gl.KEEP,gl.KEEP,gl.INCR);
 
     PIXI.WebGLGraphics.renderGraphics(maskData, renderSession);

diff --git a/Gruntfile.js b/Gruntfile.js
index e733fe7..8f53bd3 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -61,6 +61,7 @@
             '<%= dirs.src %>/loaders/BitmapFontLoader.js',
             '<%= dirs.src %>/loaders/SpineLoader.js',
             '<%= dirs.src %>/filters/AbstractFilter.js',
+            '<%= dirs.src %>/filters/AlphaMaskFilter.js',
             '<%= dirs.src %>/filters/ColorMatrixFilter.js',
             '<%= dirs.src %>/filters/GrayFilter.js',
             '<%= dirs.src %>/filters/DisplacementFilter.js',
diff --git a/src/pixi/display/DisplayObject.js b/src/pixi/display/DisplayObject.js
index 989410c..e353b85 100644
--- a/src/pixi/display/DisplayObject.js
+++ b/src/pixi/display/DisplayObject.js
@@ -446,6 +446,11 @@
     return bounds;
 };
 
+PIXI.DisplayObject.prototype.setStageReference = function(stage)
+{
+    this.stage = stage;
+    if(this._interactive)this.stage.dirty = true;
+};
 
 PIXI.DisplayObject.prototype._renderWebGL = function(renderSession)
 {
diff --git a/src/pixi/display/Stage.js b/src/pixi/display/Stage.js
index d220684..934cba3 100644
--- a/src/pixi/display/Stage.js
+++ b/src/pixi/display/Stage.js
@@ -50,9 +50,6 @@
      */
     this.dirty = true;
 
-    this.__childrenAdded = [];
-    this.__childrenRemoved = [];
-
     //the stage is it's own stage
     this.stage = this;
 
@@ -60,7 +57,6 @@
     this.stage.hitArea = new PIXI.Rectangle(0,0,100000, 100000);
 
     this.setBackgroundColor(backgroundColor);
-    this.worldVisible = true;
 };
 
 // constructor
diff --git a/src/pixi/filters/AlphaMaskFilter.js b/src/pixi/filters/AlphaMaskFilter.js
index c1cab2f..cd1dff9 100644
--- a/src/pixi/filters/AlphaMaskFilter.js
+++ b/src/pixi/filters/AlphaMaskFilter.js
@@ -21,17 +21,15 @@
     // set the uniforms
     //console.log()
     this.uniforms = {
-        displacementMap: {type: 'sampler2D', value:texture},
-        scale:           {type: '2f', value:{x:30, y:30}},
-        offset:          {type: '2f', value:{x:0, y:0}},
+        mask: {type: 'sampler2D', value:texture},
         mapDimensions:   {type: '2f', value:{x:1, y:5112}},
         dimensions:   {type: '4fv', value:[0,0,0,0]}
     };
 
     if(texture.baseTexture.hasLoaded)
     {
-        this.uniforms.mapDimensions.value.x = texture.width;
-        this.uniforms.mapDimensions.value.y = texture.height;
+        this.uniforms.mask.value.x = texture.width;
+        this.uniforms.mask.value.y = texture.height;
     }
     else
     {
@@ -44,30 +42,25 @@
         'precision mediump float;',
         'varying vec2 vTextureCoord;',
         'varying vec4 vColor;',
-        'uniform sampler2D displacementMap;',
+        'uniform sampler2D mask;',
         'uniform sampler2D uSampler;',
-        'uniform vec2 scale;',
         'uniform vec2 offset;',
         'uniform vec4 dimensions;',
-        'uniform vec2 mapDimensions;',// = vec2(256.0, 256.0);',
-        // 'const vec2 textureDimensions = vec2(750.0, 750.0);',
+        'uniform vec2 mapDimensions;',
 
         'void main(void) {',
         '   vec2 mapCords = vTextureCoord.xy;',
-        //'   mapCords -= ;',
         '   mapCords += (dimensions.zw + offset)/ dimensions.xy ;',
         '   mapCords.y *= -1.0;',
         '   mapCords.y += 1.0;',
-        '   vec2 matSample = texture2D(displacementMap, mapCords).xy;',
-        '   matSample -= 0.5;',
-        '   matSample *= scale;',
-        '   matSample /= mapDimensions;',
-        '   gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x + matSample.x, vTextureCoord.y + matSample.y));',
-        '   gl_FragColor.rgb = mix( gl_FragColor.rgb, gl_FragColor.rgb, 1.0);',
-        '   vec2 cord = vTextureCoord;',
+        '   mapCords *= dimensions.xy / mapDimensions;',
 
-        //'   gl_FragColor =  texture2D(displacementMap, cord);',
-     //   '   gl_FragColor = gl_FragColor;',
+        '   vec4 original =  texture2D(uSampler, vTextureCoord);',
+        '   float maskAlpha =  texture2D(mask, mapCords).r;',
+        '   original *= maskAlpha;',
+        //'   original.rgb *= maskAlpha;',
+        '   gl_FragColor =  original;',
+        //'   gl_FragColor = gl_FragColor;',
         '}'
     ];
 };
@@ -77,10 +70,10 @@
 
 PIXI.AlphaMaskFilter.prototype.onTextureLoaded = function()
 {
-    this.uniforms.mapDimensions.value.x = this.uniforms.displacementMap.value.width;
-    this.uniforms.mapDimensions.value.y = this.uniforms.displacementMap.value.height;
+    this.uniforms.mapDimensions.value.x = this.uniforms.mask.value.width;
+    this.uniforms.mapDimensions.value.y = this.uniforms.mask.value.height;
 
-    this.uniforms.displacementMap.value.baseTexture.off('loaded', this.boundLoadedFunction);
+    this.uniforms.mask.value.baseTexture.off('loaded', this.boundLoadedFunction);
 };
 
 /**
@@ -91,39 +84,10 @@
  */
 Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'map', {
     get: function() {
-        return this.uniforms.displacementMap.value;
+        return this.uniforms.mask.value;
     },
     set: function(value) {
-        this.uniforms.displacementMap.value = value;
+        this.uniforms.mask.value = value;
     }
 });
 
-/**
- * The multiplier used to scale the displacement result from the map calculation.
- *
- * @property scale
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'scale', {
-    get: function() {
-        return this.uniforms.scale.value;
-    },
-    set: function(value) {
-        this.uniforms.scale.value = value;
-    }
-});
-
-/**
- * The offset used to move the displacement map.
- *
- * @property offset
- * @type Point
- */
-Object.defineProperty(PIXI.AlphaMaskFilter.prototype, 'offset', {
-    get: function() {
-        return this.uniforms.offset.value;
-    },
-    set: function(value) {
-        this.uniforms.offset.value = value;
-    }
-});
diff --git a/src/pixi/loaders/SpineLoader.js b/src/pixi/loaders/SpineLoader.js
index f0a38ca..0f1f3c9 100644
--- a/src/pixi/loaders/SpineLoader.js
+++ b/src/pixi/loaders/SpineLoader.js
@@ -64,7 +64,7 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener("loaded", function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
+        scope.onLoaded();
     });
     jsonLoader.load();
 };
@@ -72,21 +72,6 @@
 /**
  * Invoke when JSON file is loaded
  *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpineLoader.prototype.onJSONLoaded = function () {
-    var spineJsonParser = new spine.SkeletonJson();
-    var skeletonData = spineJsonParser.readSkeletonData(this.json);
-
-    PIXI.AnimCache[this.url] = skeletonData;
-
-    this.onLoaded();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
  * @method onLoaded
  * @private
  */
diff --git a/src/pixi/loaders/SpriteSheetLoader.js b/src/pixi/loaders/SpriteSheetLoader.js
index e9844ce..4f4c802 100644
--- a/src/pixi/loaders/SpriteSheetLoader.js
+++ b/src/pixi/loaders/SpriteSheetLoader.js
@@ -80,47 +80,9 @@
     var jsonLoader = new PIXI.JsonLoader(this.url, this.crossorigin);
     jsonLoader.addEventListener('loaded', function (event) {
         scope.json = event.content.json;
-        scope.onJSONLoaded();
-    });
-    jsonLoader.load();
-};
-
-/**
- * Invoke when JSON file is loaded
- *
- * @method onJSONLoaded
- * @private
- */
-PIXI.SpriteSheetLoader.prototype.onJSONLoaded = function () {
-    var scope = this;
-    var textureUrl = this.baseUrl + this.json.meta.image;
-    var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
-    var frameData = this.json.frames;
-
-    this.texture = image.texture.baseTexture;
-    image.addEventListener('loaded', function () {
         scope.onLoaded();
     });
-
-    for (var i in frameData) {
-        var rect = frameData[i].frame;
-        if (rect) {
-            PIXI.TextureCache[i] = new PIXI.Texture(this.texture, {
-                x: rect.x,
-                y: rect.y,
-                width: rect.w,
-                height: rect.h
-            });
-            if (frameData[i].trimmed) {
-                //var realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].realSize = frameData[i].spriteSourceSize;
-                PIXI.TextureCache[i].trim.x = 0; // (realSize.x / rect.w)
-                // calculate the offset!
-            }
-        }
-    }
-
-    image.load();
+    jsonLoader.load();
 };
 
 /**
diff --git a/src/pixi/primitives/Graphics.js b/src/pixi/primitives/Graphics.js
index 8fddeab..f336e8f 100644
--- a/src/pixi/primitives/Graphics.js
+++ b/src/pixi/primitives/Graphics.js
@@ -67,21 +67,44 @@
     this._webGL = [];
 
     this.isMask = false;
+
+    this.bounds = null;
+
+    this.boundsPadding = 10;
 };
 
 // constructor
 PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
 PIXI.Graphics.prototype.constructor = PIXI.Graphics;
 
-/*
-*   Not yet implemented
-*/
+/**
+ * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite.
+ * This is useful if your graphics element does not change often as it will speed up the rendering of the object
+ * It is also usful as the graphics object will always be aliased because it will be rendered using canvas
+ * Not recommended if you are conastanly redrawing the graphics element.
+ *
+ * @property cacheAsBitmap
+ * @default false
+ * @type Boolean
+ * @private
+ */
 Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", {
     get: function() {
         return  this._cacheAsBitmap;
     },
     set: function(value) {
         this._cacheAsBitmap = value;
+
+        if(this._cacheAsBitmap)
+        {
+            this._generateCachedSprite();
+        }
+        else
+        {
+            this.destroyCachedSprite();
+            this.dirty = true;
+        }
+
     }
 });
 
@@ -249,34 +272,72 @@
     this.bounds = null; //new PIXI.Rectangle();
 };
 
+/**
+ * Useful function that returns a texture of the graphics object that can then be used to create sprites
+ * This can be quite useful if your geometry is complicated and needs to be reused multiple times.
+ *
+ * @method generateTexture
+ * @return {Texture} a texture of the graphics object
+ */
+PIXI.Graphics.prototype.generateTexture = function()
+{
+    var bounds = this.getBounds();
+
+    var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+    var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+
+    canvasBuffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context);
+
+    return texture;
+};
 
 PIXI.Graphics.prototype._renderWebGL = function(renderSession)
 {
     // if the sprite is not visible or the alpha is 0 then no need to render this element
     if(this.visible === false || this.alpha === 0 || this.isMask === true)return;
     
-   
-    renderSession.spriteBatch.stop();
-
-    if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
-    if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
-  
-    // check blend mode
-    if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+    if(this._cacheAsBitmap)
     {
-        this.spriteBatch.currentBlendMode = this.blendMode;
-        var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
-        this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
-    }
- 
-    PIXI.WebGLGraphics.renderGraphics(this, renderSession);
-    
-    if(this._filters)renderSession.filterManager.popFilter();
-    if(this._mask)renderSession.maskManager.popMask(renderSession);
-      
-    renderSession.drawCount++;
+       
+        if(this.dirty)
+        {
+            this._generateCachedSprite();
+            // we will also need to update the texture on the gpu too!
+            PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl);
+            
+            this.dirty =  false;
+        }
 
-    renderSession.spriteBatch.start();
+        PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession);
+
+        return;
+    }
+    else
+    {
+        renderSession.spriteBatch.stop();
+
+        if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession);
+        if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock);
+      
+        // check blend mode
+        if(this.blendMode !== renderSession.spriteBatch.currentBlendMode)
+        {
+            this.spriteBatch.currentBlendMode = this.blendMode;
+            var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode];
+            this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
+        }
+     
+        PIXI.WebGLGraphics.renderGraphics(this, renderSession);
+        
+        if(this._filters)renderSession.filterManager.popFilter();
+        if(this._mask)renderSession.maskManager.popMask(renderSession);
+          
+        renderSession.drawCount++;
+
+        renderSession.spriteBatch.start();
+    }
 };
 
 PIXI.Graphics.prototype._renderCanvas = function(renderSession)
@@ -425,9 +486,50 @@
         }
     }
 
-    this.bounds = new PIXI.Rectangle(minX, minY, maxX - minX, maxY - minY);
+    var padding = this.boundsPadding;
+    this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2);
 };
 
+PIXI.Graphics.prototype._generateCachedSprite = function()
+{
+    var bounds = this.getBounds();
+
+    if(!this._cachedSprite)
+    {
+        var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height);
+        var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas);
+        
+        this._cachedSprite = new PIXI.Sprite(texture);
+        this._cachedSprite.buffer = canvasBuffer;
+
+        this._cachedSprite.worldTransform = this.worldTransform;
+    }
+    else
+    {
+        this._cachedSprite.buffer.resize(bounds.width, bounds.height);
+    }
+
+    // leverage the anchor to account for the offest of the element
+    this._cachedSprite.anchor.x = -( bounds.x / bounds.width );
+    this._cachedSprite.anchor.y = -( bounds.y / bounds.height );
+
+   // this._cachedSprite.buffer.context.save();
+    this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y);
+    
+    PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context);
+   // this._cachedSprite.buffer.context.restore();
+};
+
+PIXI.Graphics.prototype.destroyCachedSprite = function()
+{
+    this._cachedSprite.texture.destroy(true);
+
+    // let the gc collect the unused sprite
+    // TODO could be object pooled!
+    this._cachedSprite = null;
+};
+
+
 // SOME TYPES:
 PIXI.Graphics.POLY = 0;
 PIXI.Graphics.RECT = 1;
diff --git a/src/pixi/renderers/canvas/CanvasRenderer.js b/src/pixi/renderers/canvas/CanvasRenderer.js
index d98e6fd..867b7f9 100644
--- a/src/pixi/renderers/canvas/CanvasRenderer.js
+++ b/src/pixi/renderers/canvas/CanvasRenderer.js
@@ -120,8 +120,8 @@
     //stage.__childrenRemoved = [];
 
     // update textures if need be
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
 
     PIXI.visibleCount++;
     stage.updateTransform();
@@ -149,7 +149,7 @@
     // remove frame updates..
     if(PIXI.Texture.frameUpdates.length > 0)
     {
-        PIXI.Texture.frameUpdates = [];
+        PIXI.Texture.frameUpdates.length = 0;
     }
 };
 
diff --git a/src/pixi/renderers/webgl/WebGLRenderer.js b/src/pixi/renderers/webgl/WebGLRenderer.js
index 58210ea..2cb7f99 100644
--- a/src/pixi/renderers/webgl/WebGLRenderer.js
+++ b/src/pixi/renderers/webgl/WebGLRenderer.js
@@ -2,13 +2,7 @@
  * @author Mat Groves http://matgroves.com/ @Doormat23
  */
 
-PIXI._defaultFrame = new PIXI.Rectangle(0,0,1,1);
-
-// an instance of the gl context..
-// only one at the moment :/
-PIXI.gl = null;
-
-
+PIXI.glContexts = []; // this is where we store the webGL contexts for easy access.
 
 /**
  * the WebGLRenderer is draws the stage and all its content onto a webGL enabled canvas. This renderer
@@ -46,8 +40,6 @@
     this.view.addEventListener('webglcontextlost', function(event) { scope.handleContextLost(event); }, false);
     this.view.addEventListener('webglcontextrestored', function(event) { scope.handleContextRestored(event); }, false);
 
-    this.batchs = [];
-
     this.options = {
         alpha: this.transparent,
         antialias:!!antialias, // SPEED UP??
@@ -71,6 +63,8 @@
     var gl = this.gl;
     this.glContextId = gl.id = PIXI.WebGLRenderer.glContextId ++;
 
+    PIXI.glContexts[this.glContextId] = gl;
+
     if(!PIXI.blendModesWebGL)
     {
         PIXI.blendModesWebGL = [];
@@ -111,8 +105,6 @@
 
     gl.useProgram(this.shaderManager.defaultShader.program);
 
-    PIXI.WebGLRenderer.gl = gl;
-
     gl.disable(gl.DEPTH_TEST);
     gl.disable(gl.CULL_FACE);
 
@@ -242,59 +234,12 @@
     for (i = 0; i < PIXI.texturesToDestroy.length; i++)
         PIXI.WebGLRenderer.destroyTexture(PIXI.texturesToDestroy[i]);
 
-    PIXI.texturesToUpdate = [];
-    PIXI.texturesToDestroy = [];
-    PIXI.Texture.frameUpdates = [];
+    PIXI.texturesToUpdate.length = 0;
+    PIXI.texturesToDestroy.length = 0;
+    PIXI.Texture.frameUpdates.length = 0;
 };
 
 /**
- * Updates a loaded webgl texture
- *
- * @static
- * @method updateTexture
- * @param texture {Texture} The texture to update
- * @private
- */
-
- /*
-PIXI.WebGLRenderer.updateTexture = function(texture)
-{
-    //TODO break this out into a texture manager...
-    var gl = this.gl;
-
-    if(!texture._glTexture)
-    {
-        texture._glTexture = gl.createTexture();
-    }
-
-    if(texture.hasLoaded)
-    {
-        gl.bindTexture(gl.TEXTURE_2D, texture._glTexture);
-        gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
-
-        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, texture.source);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, texture.scaleMode === PIXI.BaseTexture.SCALE_MODE.LINEAR ? gl.LINEAR : gl.NEAREST);
-
-        // reguler...
-
-        if(!texture._powerOf2)
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-        }
-        else
-        {
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
-            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
-        }
-
-        gl.bindTexture(gl.TEXTURE_2D, null);
-    }
-};
-*/
-
-/**
  * Destroys a loaded webgl texture
  *
  * @method destroyTexture
@@ -304,13 +249,19 @@
 PIXI.WebGLRenderer.destroyTexture = function(texture)
 {
     //TODO break this out into a texture manager...
-    var gl = PIXI.gl;
 
-    if(texture._glTexture)
+    for (var i = texture._glTextures.length - 1; i >= 0; i--)
     {
-        texture._glTexture = gl.createTexture();
-        gl.deleteTexture(gl.TEXTURE_2D, texture._glTexture);
+        var glTexture = texture._glTextures[i];
+        var gl = PIXI.glContexts[i];
+
+        if(gl && glTexture)
+        {
+            gl.deleteTexture(glTexture);
+        }
     }
+
+    texture._glTextures.length = 0;
 };
 
 PIXI.WebGLRenderer.updateTextureFrame = function(texture)
@@ -373,6 +324,8 @@
 
         gl.bindTexture(gl.TEXTURE_2D, null);
     }
+
+    return  texture._glTextures[gl.id];
 };
 
 PIXI.updateWebGLTexture = function(texture, gl)
diff --git a/src/pixi/renderers/webgl/utils/WebGLGraphics.js b/src/pixi/renderers/webgl/utils/WebGLGraphics.js
index fff1223..72fd085 100644
--- a/src/pixi/renderers/webgl/utils/WebGLGraphics.js
+++ b/src/pixi/renderers/webgl/utils/WebGLGraphics.js
@@ -193,13 +193,18 @@
 
     if(graphicsData.lineWidth)
     {
+        var tempPoints = graphicsData.points;
+
         graphicsData.points = [x, y,
                   x + width, y,
                   x + width, y + height,
                   x, y + height,
                   x, y];
 
+
         PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
+
+        graphicsData.points = tempPoints;
     }
 };
 
@@ -260,6 +265,8 @@
 
     if(graphicsData.lineWidth)
     {
+        var tempPoints = graphicsData.points;
+
         graphicsData.points = [];
 
         for (i = 0; i < totalSegs + 1; i++)
@@ -269,6 +276,8 @@
         }
 
         PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
+
+        graphicsData.points = tempPoints;
     }
 };
 
diff --git a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
index 93614cf..8e6f46c 100644
--- a/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
+++ b/src/pixi/renderers/webgl/utils/WebGLMaskManager.js
@@ -29,7 +29,7 @@
 
     this.maskStack.push(maskData);
     
-    gl.colorMask(false, false, false, false);
+    gl.colorMask(false, false, false, true);
     gl.stencilOp(gl.KEEP,gl.KEEP,gl.INCR);
 
     PIXI.WebGLGraphics.renderGraphics(maskData, renderSession);
diff --git a/src/pixi/utils/Detector.js b/src/pixi/utils/Detector.js
index d6046a3..6fad22f 100644
--- a/src/pixi/utils/Detector.js
+++ b/src/pixi/utils/Detector.js
@@ -31,13 +31,15 @@
                                 }
                             } )();
 
-    if(webgl)
+    // used to detect ie 11 - no longer required
+    /*  if(webgl)
     {
         var ie =  (navigator.userAgent.toLowerCase().indexOf('trident') !== -1);
         webgl = !ie;
     }
+    */
 
-    //console.log(webgl);
+
     if( webgl )
     {
         return new PIXI.WebGLRenderer(width, height, view, transparent, antialias);