How to scale and resize Subviewport in Godot

Help
1

Godot Version

Version 4.x

Question

How to change the size of subviewport in godot via code like i dont want it to fully fit the screen i just wanna change its size and when i change its size how can i scale it like i am making a pixelart game with a base res of 640x360 but i dont want it to fully fit the screen i want the main game subviewport to scale to a pixelperfect res and then instead of the black bars there will be a background i made i have done all the things but this change size of subviewport and scaling it i tried so many things but it is not working and there is no documentation about it. Also I can’t use the subviewportcontainer stretch property because that will cause it to resize by itself to any res and not pixelperfect

2

Calculate and set the size of the container by yourself depending on the main viewport size.

3

But when I try to set the size of the container or the subviewport itself it just doesn’t change I think it’s cause of the anchors of the subviewportcontainer

4

Use positional layout mode or calculate anchor points/offsets yourself, don’t use anchoring presets.