[away3d] I am not getting full screen viewPort

[Ali]

Hi,

I am trying to make one background that can fill the complete view
port but when it starts rendering it only display 4:3 ratio screen not
16:9. I want to make bg adjust automatically according to the users
screen resolution. Here is a code I am trying to work with

//
*********************************************************************************//
package
{
        import away3d.cameras.HoverCamera3D;
        import away3d.containers.View3D;
        import away3d.materials.TransformBitmapMaterial;
        import away3d.primitives.Plane;
        import away3d.primitives.Sphere;

        import flash.display.Bitmap;
        import flash.display.Sprite;
        import flash.events.Event;

        [SWF( backgroundColor="#0a0a0a")]

        public class bgtry extends Sprite
        {
                [Embed("../assets/bg.jpg")]
                private var bg:Class;

                private var bgPlane:Plane;
                private var cam:HoverCamera3D=new HoverCamera3D();
                private var sphr:Sphere;
                private var view:View3D;

                private var bmpMat:Bitmap=new bg() as Bitmap;
                private var stMat:TransformBitmapMaterial=new
TransformBitmapMaterial(bmpMat.bitmapData,{scaleX:1,scaleY:1});
                public function bgtry()
                {

                        init();
                }
                private function init():void{
                        view = new View3D();
                        view.x=stage.stageWidth/2;
                        view.y=stage.stageHeight/2;

                        bgPlane=new Plane({material:"orange#black"});
                        bgPlane.width=stage.stageWidth*2;
                        bgPlane.height=stage.stageWidth*0.5;

                        bgPlane.material=stMat;
                        bgPlane.segmentsH=5;
                        bgPlane.segmentsW=5;

                        this.addChild(view);

                        view.scene.addChild(bgPlane);
                        view.camera=cam;
//                      cam.zoom=10;
                        this.addEventListener(Event.ENTER_FRAME,entFrm);
                        view.render();
                }
                private function entFrm(e:Event):void{
                        //bgPlane.x-=0.5;
                        view.render();
                }
        }
}

//***********************************************************//

I am a beginner please help me how to solve this issue. Thanks in
advance