[Starling] Вращение текстуры вокруг центра

[AlexCooper]

Сделал замеры. каждый кадр генерируется рандомная текстура 400х400.
Фпс не проседает

GenText.rar

[AlexCooper]

package
{
	import flash.display3D.textures.Texture;
 
	import starling.display.Image;
	import starling.display.Sprite;
	import starling.events.Event;
	import starling.textures.Texture;
 
	public class Main extends Sprite
	{
		private var image:Image;
		private var text:starling.textures.Texture;
 
		public function Main()
		{
			super();
 
			text = starling.textures.Texture.fromBitmapData( PsevdoTexture.getBitmapdata() );
 
			image = new Image(text);
			image.x = 
			image.y = 100;
 
			addChild( image );
 
			this.addEventListener( Event.ENTER_FRAME, customRender );
		}
 
		private function customRender(e:Event):void
		{			
			flash.display3D.textures.Texture(text.base).uploadFromBitmapData( PsevdoTexture.getBitmapdata() );/**/
		}
	}
}

package
{
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.display.DisplayObject;
	import flash.display.PixelSnapping;
	import flash.display.Sprite;
	import flash.geom.Matrix;
	import flash.geom.Rectangle;
 
	public class PsevdoTexture
	{		
		private static var _bd:BitmapData;
		private static var bitmap:Bitmap;
		private static var sprite:Sprite;
		private static var debug:Boolean = true;
 
		public static function getBitmapdata():BitmapData
		{
			var size:Number = 400;
 
			var spr:Sprite = new Sprite();
				spr.graphics.beginFill(0xAAAAAA,0);
				spr.graphics.drawRect(0,0,size,size);
				spr.graphics.endFill();
				spr.graphics.lineStyle(2,0xFF0000*Math.random(),1);
				spr.graphics.moveTo(0,0);
 
 
				spr.graphics.lineTo(Math.random()*size,Math.random()*size);
 
			var cont:Sprite = new Sprite();
				cont.addChild( spr );
 
 
			return get(cont);
		}
 
		private static function get( ARG_object:DisplayObject, ARG_x:Number = 0, ARG_y:Number = 0, ARG_width:Number = 0, ARG_height:Number = 0,transpend:Boolean=false):BitmapData {
 
			if (!ARG_width) ARG_width = (ARG_object.mask) ? ARG_object.mask.width : ARG_object.width;
			if (!ARG_height) ARG_height = (ARG_object.mask) ? ARG_object.mask.height : ARG_object.height;
 
			var cropArea:Rectangle = new Rectangle(0, 0, ARG_width, ARG_height);
			var fillColor:uint = transpend
				? 0x00000000
				: 0x0;
			var bmpd:BitmapData = new BitmapData(ARG_width, ARG_height,true,fillColor);
 
			var croppedBitmap:Bitmap = new Bitmap(bmpd, PixelSnapping.ALWAYS, true);
 
			var cropMatrix:Matrix = new Matrix();
				cropMatrix.translate(-ARG_x, -ARG_y);
 
			bmpd.draw( ARG_object, cropMatrix, null, null, cropArea, true );
 
			return bmpd; 
		}
	}
}