Update FX, optional worldTime

hide/prefab/fx/FX.hx

@@ -102,7 +102,8 @@ class FXAnimation extends h3d.scene.Object {
 	}
 
 	static var tempMat = new h3d.Matrix();
-	public function setTime( localTime : Float, worldTime : Float ) {
+	public function setTime( localTime : Float, ?worldTime : Float ) {
+		if(worldTime == null) worldTime = localTime;
 		for(anim in objects) {
 			var m = tempMat;
 			if(anim.scale != null) {