godot/doc/classes/SubViewportContainer.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="SubViewportContainer" inherits="Container" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
	<brief_description>
		Control for holding [SubViewport]s.
	</brief_description>
	<description>
		A [Container] node that holds a [SubViewport], automatically setting its size.
		[b]Note:[/b] Changing a SubViewportContainer's [member Control.rect_scale] will cause its contents to appear distorted. To change its visual size without causing distortion, adjust the node's margins instead (if it's not already in a container).
	</description>
	<tutorials>
	</tutorials>
	<members>
		<member name="stretch" type="bool" setter="set_stretch" getter="is_stretch_enabled" default="false">
			If [code]true[/code], the sub-viewport will be scaled to the control's size.
		</member>
		<member name="stretch_shrink" type="int" setter="set_stretch_shrink" getter="get_stretch_shrink" default="1">
			Divides the sub-viewport's effective resolution by this value while preserving its scale. This can be used to speed up rendering.
			For example, a 1280×720 sub-viewport with [member stretch_shrink] set to [code]2[/code] will be rendered at 640×360 while occupying the same size in the container.
			[b]Note:[/b] [member stretch] must be [code]true[/code] for this property to work.
		</member>
	</members>
</class>