| Name | Type | Description | 
|---|---|---|
renderer | 
            
            PIXI.Renderer | 
                 The renderer this System works for.  | 
        
Implements
Members
maskStack Array<PIXI.MaskData> protected
The mask stack
Methods
Destroys the mask stack.
Gets count of masks of certain type.
Returns:
| Type | Description | 
|---|---|
| number | 
Changes the mask stack that is used by this System.
| Name | Type | Description | 
|---|---|---|
maskStack | 
            
            Array<PIXI.MaskData> | 
                 The mask stack  |