root/as3/Astro/RadialBlur/src/Main.as

package 
{
    import flash.display.Bitmap;
        import flash.display.Sprite;
    import flash.events.MouseEvent;
    import org.unbland.debug.FPS;
        
        public class Main extends Sprite
        {
                [Embed (source="sunflower.jpg")]
        private var _imageClass:Class;
        
        private var _bitmap:Bitmap;
        private var _filter:RadialBlurFilter;
        
        public function Main():void 
                {
            FPS.initialize(stage);
            
                        _bitmap = addChild(Bitmap(new _imageClass())) as Bitmap;
            _filter = new RadialBlurFilter(_bitmap.width / 2, _bitmap.height / 2);
            
            _bitmap.filters = [_filter];
            
            stage.addEventListener(MouseEvent.MOUSE_MOVE, applyFilter);
                }
        
        private function applyFilter(e:MouseEvent):void 
        {
            _filter.centerX = mouseX;
            _filter.centerY = mouseY;
            _filter.amount = 50;
            
            _bitmap.filters = [_filter];
        }
        }
}