[AS3] 使用matrix顏色變形矩陣操作Bitmap物件，使其為原值，圖形RGB不變

matrix[0]、matrix[6]、matrix[12] 值皆為1時，Bitmap物件為原值，圖形不變。

991221_ColorMF_identity.swf

package  {
 import flash.display.Sprite;
 import flash.filters.ColorMatrixFilter;
 import flash.display.BitmapData;
 import flash.display.Bitmap;
 import flash.display.DisplayObject;
 //
 public class ColorMF_identity_991221 extends Sprite{
  public var bmd:BitmapData = new MyPhoto(0,0);
  public var bm:Bitmap = new Bitmap(bmd);
  public function ColorMF_identity_991221() {
   addChild(bm);
   var matrix:Array = new Array();
   matrix = matrix.concat([1, 0, 0, 0, 0]); //RED Channel
   matrix = matrix.concat([0, 1, 0, 0, 0]); //GREEN Channel
   matrix = matrix.concat([0, 0, 1, 0, 0]); //BLUE Channel
   matrix = matrix.concat([0, 0, 0, 1, 0]); //ALPHA Channel
   var myFilter:ColorMatrixFilter = new ColorMatrixFilter(matrix);
   bm.filters = [myFilter];
  }

 }
 
}