package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.BlendMode; import flash.display.Sprite; import flash.events.Event; import flash.filters.BlurFilter; import flash.filters.ColorMatrixFilter; import flash.filters.GlowFilter; import flash.geom.Point; [SWF(backgroundColor='#FFFFFF', frameRate=60)] public class Main extends Sprite { private var container:Sprite; private var circle:Sprite; private var bmd:BitmapData; private var bmp:Bitmap; public function Main() { initDisplay(); addEventListener(Event.ENTER_FRAME, enterFrameHandler); } private function initDisplay():void { container = new Sprite(); circle = new Sprite() circle.graphics.beginFill(0xFF0000) circle.graphics.drawRect(0, 0, 300, 5); container.addChild(circle); bmd = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000); bmp = new Bitmap(); bmp.bitmapData = bmd; bmp.blendMode = BlendMode.HARDLIGHT; addChild(bmp); } private var angleX:Number = 0; private var angleY:Number = 0; private function enterFrameHandler(event:Event):void { bmd.draw(container); angleX += 5; angleY += 0.5; var px:Number = Math.cos(Math.PI / 180 * angleX) * stage.stageWidth / 10; var py:Number = Math.sin(Math.PI / 180 * angleY) * stage.stageHeight / 2.4; circle.x = px + circle.width / 4; circle.y = py + stage.stageHeight / 2; var point:Point = new Point(); bmd.threshold(bmd, bmd.rect, point, "<", 0x00333333, 0x00000000, 0x00FF0000, true); var matrix:Array = [ 1, 0, 0, 0, 0, 0, 1, 0, 0, 5, 0, 0, 1, 0, 2, 0, 0, 0, 1, -0.3 ]; var matrixFilter:ColorMatrixFilter = new ColorMatrixFilter(matrix); bmd.applyFilter(bmd, bmd.rect, point, new GlowFilter(0x22FF00, 1, 6, 6, 10)); bmd.applyFilter(bmd, bmd.rect, point, new GlowFilter(0x0011FF, 1, 6, 6, 10)); bmd.applyFilter(bmd, bmd.rect, point, new BlurFilter(7, 7)); bmd.applyFilter(bmd, bmd.rect, point, matrixFilter); bmd.applyFilter(bmd, bmd.rect, point, new GlowFilter(0x0000FF, 3, 3, 1, 5)); } } }