if (frameCacheByAsset[frameName])
{
    bitmapData = frameCacheByAsset[frameName];
    //bitmapData.draw(frameCacheByAsset[frameName]);

    //trace("cache asignado", frameName);

}
else
{
    trace("creando cache", frameName);
    bitmapData.fillRect(bitmapData.rect, 0);
    mAnimSheet.drawFrame(curIndex, bitmapData);

    var bmpData:BitmapData = new BitmapData(bitmapData.rect.width, bitmapData.rect.height, true, 0x0);
    bmpData.draw(this.bitmapData);
    frameCacheByAsset[frameName] = bmpData;
}