From bbdfb715a6f925cae4584757ef2b39685f63d597 Mon Sep 17 00:00:00 2001
From: Hugo Locurcio <hugo.locurcio@hugo.pro>
Date: Tue, 18 May 2021 18:38:49 +0200
Subject: Use a non-zero default size for SubViewports

This makes viewports visible out of the box.
---
 doc/classes/SubViewport.xml | 2 +-
 scene/main/viewport.h       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/classes/SubViewport.xml b/doc/classes/SubViewport.xml
index b6e9eda1d1..f54f22d6fa 100644
--- a/doc/classes/SubViewport.xml
+++ b/doc/classes/SubViewport.xml
@@ -25,7 +25,7 @@
 		<member name="render_target_update_mode" type="int" setter="set_update_mode" getter="get_update_mode" enum="SubViewport.UpdateMode" default="2">
 			The update mode when the sub-viewport is used as a render target.
 		</member>
-		<member name="size" type="Vector2i" setter="set_size" getter="get_size" default="Vector2i( 0, 0 )">
+		<member name="size" type="Vector2i" setter="set_size" getter="get_size" default="Vector2i( 512, 512 )">
 			The width and height of the sub-viewport.
 		</member>
 		<member name="size_2d_override" type="Vector2i" setter="set_size_2d_override" getter="get_size_2d_override" default="Vector2i( 0, 0 )">
diff --git a/scene/main/viewport.h b/scene/main/viewport.h
index 2e88e1251d..a55df4fbc2 100644
--- a/scene/main/viewport.h
+++ b/scene/main/viewport.h
@@ -231,7 +231,7 @@ private:
 	Transform2D global_canvas_transform;
 	Transform2D stretch_transform;
 
-	Size2i size;
+	Size2i size = Size2i(512, 512);
 	Size2i size_2d_override;
 	bool size_allocated = false;
 	bool use_xr = false;
-- 
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