How to handle double rendering correctly

[amagi]

What I want to know

How to upscale the drawing of an ObjectRender node, add lighting effects, draw it in the viewport, and display it in a window.

current situation

It seems that the image is not being upscaled properly because the resolution is different, or the screen is enlarged.

About Nodes

ObjectRender: Draws sprites
LightRender: Upscales ObjectRender, adds lighting effects, and draws to the screen

What you want to do

When creating a 2D game, I want to draw at low resolution, upscale it, add lighting effects, and then draw the final image.

What I researched

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Environment

Version: 4.4
OS: Windows10
Script: C#

[rinhxe]

You can try reimporting that Sprite2D texture and increasing the scale value in the Import tab.

[amagi]

The problem was that the TextureRect node > Transform > size was set to the low resolution size for sprite drawing. It should have been set to the high resolution for lighting.

My question is, if I want to use more than two rendering resolutions, is it appropriate to use subviewports?