 			{
 				parentName = slotObjectInList[A_BONE];
 				firstAttachment = slotObjectInList[ATTACHMENT];
+                var additive:Object = slotObjectInList[ADDITIVE];
+                if(additive && additive is Boolean)
+                {
+                    var isAdditive:Boolean = additive as Boolean;
+                    if(isAdditive)
+                    {
+                        blendMode = "add";
+                    }
+                    else
+                    {
+                        blendMode = "normal";
+                    }
+                }
+                else
+                {
+                    blendMode = "normal";
+                }
 				break;
 			}
 			zOrder ++;
 		}
 		//默认的display标记出来，以便放到displayList的首位
-		skinXML.appendChild(formatSlot(skinObject[slotName], slotName, parentName, firstAttachment, zOrder, textureAtlasXML));
+		skinXML.appendChild(formatSlot(skinObject[slotName], slotName, parentName, firstAttachment, blendMode, zOrder, textureAtlasXML));
 	}
 			
 	return skinXML;
 }
 
-function formatSlot(slotObject:Object, slotName:String, slotParent:String, firstAttachment:String, zOrder:int, textureAtlasXML:XML):XML
+function formatSlot(slotObject:Object, slotName:String, slotParent:String, firstAttachment:String, blendMode:String, zOrder:int, textureAtlasXML:XML):XML
 {
 	var slotXML:XML =
 		<{ConstValues.SLOT}
 			{ConstValues.A_NAME}={slotName}
 			{ConstValues.A_PARENT}={slotParent}
 			{ConstValues.A_Z_ORDER}={zOrder}
+            {ConstValues.A_BLENDMODE}={blendMode}
 		/>;
 	
 	var displayXML:XML;

	
	var parentName:String;
	var firstAttachment:String;
	var zOrder:int;
	for(var slotName:String in skinObject)
	{

			case "1":
			case "true":
			case "yes":
				boneXML.@[ConstValues.A_SCALE_MODE] = 2;
				break;
			default:
				boneXML.@[ConstValues.A_SCALE_MODE] = 0;
				break;
		}
	}
	else
	{
		boneXML.@[ConstValues.A_SCALE_MODE] = 2;
	}
	
	var parent:String = boneObject[A_PARENT];
