diff --git a/src/core/display/Container.js b/src/core/display/Container.js
index 6481ad1..5f12eda 100644
--- a/src/core/display/Container.js
+++ b/src/core/display/Container.js
@@ -126,7 +126,6 @@
         child.parent = this;
 
         this.children.splice(index, 0, child);
-
         return child;
     }
     else
@@ -420,8 +419,9 @@
  */
 Container.prototype.renderWebGL = function (renderer)
 {
+
     // if the object is not visible or the alpha is 0 then no need to render this element
-    if (this.isMask || !this.visible || this.alpha <= 0 || !this.renderable)
+    if (this.isMask || !this.visible || this.worldAlpha <= 0 || !this.renderable)
     {
         return;
     }

diff --git a/src/core/display/Container.js b/src/core/display/Container.js
index 6481ad1..5f12eda 100644
--- a/src/core/display/Container.js
+++ b/src/core/display/Container.js
@@ -126,7 +126,6 @@
         child.parent = this;
 
         this.children.splice(index, 0, child);
-
         return child;
     }
     else
@@ -420,8 +419,9 @@
  */
 Container.prototype.renderWebGL = function (renderer)
 {
+
     // if the object is not visible or the alpha is 0 then no need to render this element
-    if (this.isMask || !this.visible || this.alpha <= 0 || !this.renderable)
+    if (this.isMask || !this.visible || this.worldAlpha <= 0 || !this.renderable)
     {
         return;
     }
diff --git a/src/core/display/DisplayObject.js b/src/core/display/DisplayObject.js
index e768ac8..fe2c0b0 100644
--- a/src/core/display/DisplayObject.js
+++ b/src/core/display/DisplayObject.js
@@ -1,4 +1,5 @@
-var math = require('../math');
+var math = require('../math'),
+    utils = require('../utils');
 
 /**
  * The base class for all objects that are rendered on the screen.
@@ -58,7 +59,7 @@
      *
      * @member {boolean}
      */
-    this.renderable = false;
+    this.renderable = true;
 
     /**
      * The display object container that contains this display object.
@@ -132,7 +133,8 @@
      */
     this._mask = null;
 
-    this._isMask = false;
+    //TODO rename to _isMask
+    this.isMask = false;
 
     /**
      * Cached internal flag.
@@ -141,10 +143,13 @@
      * @private
      */
     this._cacheIsDirty = false;
+
+   // this.cacheAsBitmap = false;
 }
 
 // constructor
 DisplayObject.prototype.constructor = DisplayObject;
+utils.eventTarget.mixin(DisplayObject.prototype);
 module.exports = DisplayObject;
 
 Object.defineProperties(DisplayObject.prototype, {
@@ -332,6 +337,9 @@
 DisplayObject.prototype.displayObjectUpdateTransform = DisplayObject.prototype.updateTransform;
 
 /**
+ *
+ *
+ *
  * Retrieves the bounds of the displayObject as a rectangle object
  *
  * @param matrix {Matrix}

diff --git a/src/core/display/Container.js b/src/core/display/Container.js
index 6481ad1..5f12eda 100644
--- a/src/core/display/Container.js
+++ b/src/core/display/Container.js
@@ -126,7 +126,6 @@
         child.parent = this;
 
         this.children.splice(index, 0, child);
-
         return child;
     }
     else
@@ -420,8 +419,9 @@
  */
 Container.prototype.renderWebGL = function (renderer)
 {
+
     // if the object is not visible or the alpha is 0 then no need to render this element
-    if (this.isMask || !this.visible || this.alpha <= 0 || !this.renderable)
+    if (this.isMask || !this.visible || this.worldAlpha <= 0 || !this.renderable)
     {
         return;
     }
diff --git a/src/core/display/DisplayObject.js b/src/core/display/DisplayObject.js
index e768ac8..fe2c0b0 100644
--- a/src/core/display/DisplayObject.js
+++ b/src/core/display/DisplayObject.js
@@ -1,4 +1,5 @@
-var math = require('../math');
+var math = require('../math'),
+    utils = require('../utils');
 
 /**
  * The base class for all objects that are rendered on the screen.
@@ -58,7 +59,7 @@
      *
      * @member {boolean}
      */
-    this.renderable = false;
+    this.renderable = true;
 
     /**
      * The display object container that contains this display object.
@@ -132,7 +133,8 @@
      */
     this._mask = null;
 
-    this._isMask = false;
+    //TODO rename to _isMask
+    this.isMask = false;
 
     /**
      * Cached internal flag.
@@ -141,10 +143,13 @@
      * @private
      */
     this._cacheIsDirty = false;
+
+   // this.cacheAsBitmap = false;
 }
 
 // constructor
 DisplayObject.prototype.constructor = DisplayObject;
+utils.eventTarget.mixin(DisplayObject.prototype);
 module.exports = DisplayObject;
 
 Object.defineProperties(DisplayObject.prototype, {
@@ -332,6 +337,9 @@
 DisplayObject.prototype.displayObjectUpdateTransform = DisplayObject.prototype.updateTransform;
 
 /**
+ *
+ *
+ *
  * Retrieves the bounds of the displayObject as a rectangle object
  *
  * @param matrix {Matrix}
diff --git a/src/core/particles/ParticleContainer.js b/src/core/particles/ParticleContainer.js
index af644fe..bf7d423 100644
--- a/src/core/particles/ParticleContainer.js
+++ b/src/core/particles/ParticleContainer.js
@@ -59,9 +59,9 @@
  */
 ParticleContainer.prototype.renderWebGL = function (renderer)
 {
-    if (!this.visible || this.alpha <= 0 || !this.children.length || !this.renderable)
+    if (!this.visible || this.worldAlpha <= 0 || !this.children.length || !this.renderable)
     {
-        return;
+      //  return;
     }
 
     renderer.setObjectRenderer( renderer.plugins.particle );
@@ -123,7 +123,7 @@
  */
 ParticleContainer.prototype.renderCanvas = function (renderer)
 {
-    if (!this.visible || this.alpha <= 0 || !this.children.length || !this.renderable)
+    if (!this.visible || this.worldAlpha <= 0 || !this.children.length || !this.renderable)
     {
         return;
     }