From 9d571d8eacb07e1b96de049feca976b3309cd21d Mon Sep 17 00:00:00 2001
From: Juan Linietsky <reduzio@gmail.com>
Date: Fri, 22 Jan 2016 18:54:43 -0300
Subject: [PATCH] -Fix viewport converting the scren in grayness, fixes #3406

---
 scene/main/viewport.cpp | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index 5e8868c3267..9297d49e2bf 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -331,20 +331,24 @@ void Viewport::_notification(int p_what) {
 				}
 			}
 
+
+			parent=NULL;
+			Node *parent_node=get_parent();
+
+
+			while(parent_node) {
+
+				parent = parent_node->cast_to<Viewport>();
+				if (parent)
+					break;
+
+				parent_node=parent_node->get_parent();
+			}
+
+
 			if (!render_target)
 				_vp_enter_tree();
 
-			this->parent=NULL;
-			Node *parent=get_parent();
-
-			if (parent) {
-
-
-				while(parent && !(this->parent=parent->cast_to<Viewport>())) {
-
-					parent=parent->get_parent();
-				}
-			}
 
 			current_canvas=find_world_2d()->get_canvas();
 			VisualServer::get_singleton()->viewport_set_scenario(viewport,find_world()->get_scenario());