Help with rendering outside the viewpoirt

Godot Version

Godot 4.3

Question

Hi, I would like to know something, I’m playing a 3D horror game with low resolution, so black borders are formed even on the mobile game, is there a way to put the touch keys in the black borders, that is, at the edges of the viewport? thanks for your attention

No, you can’t. But that means you’re using a wrong resolution proportion, even being low res you can make fill the screen correctly, check if you’re using a 4:3 resolution and if that’s the case, adapt for a 16:9 that will fit in most screens without issues.

can I also adapt it using a 320×240 resolution?

I recommend you take a look on this: Multiple resolutions — Godot Engine (stable) documentation in English

I assume that you are talking about biack bars as depicted in Multiple resolutions — Godot Engine (stable) documentation in English

You can not place buttons in these black bars.
You would need to create a fullscreen viewport and manually place your game content in the middle and the buttons you mentioned on the sides.