From 927a7916f659d5ddf845f02d802f7c8890824246 Mon Sep 17 00:00:00 2001
From: PouleyKetchoupp <pouleyketchoup@gmail.com>
Date: Tue, 13 Aug 2019 20:59:41 +0200
Subject: [PATCH] Fixed error in ParallaxLayer when set_mirroring is called
 before entering the tree

Fixes #31300
---
 scene/2d/parallax_layer.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scene/2d/parallax_layer.cpp b/scene/2d/parallax_layer.cpp
index 9a6b63b9a34..0823e09110d 100644
--- a/scene/2d/parallax_layer.cpp
+++ b/scene/2d/parallax_layer.cpp
@@ -69,6 +69,9 @@ Size2 ParallaxLayer::get_motion_offset() const {
 
 void ParallaxLayer::_update_mirroring() {
 
+	if (!is_inside_tree())
+		return;
+
 	ParallaxBackground *pb = Object::cast_to<ParallaxBackground>(get_parent());
 	if (pb) {