Accessing a screen texture from a SubViewport

[cyberhead]

Given the issues I’ve had with setting up a frame accumulation effect, I have provided the details about my problematic setup there:

Frame accumulation effect?

I have attempted to do it using this setup: [Zrzut ekranu 2026-02-11 o 02.25.41] with making sure that I render into these subviewports using these lines of code: sub_viewport.world_2d = get_world_2d() sub_viewport_2.world_2d = get_world_2d() with the following shader settings under the SubViewport2’s ColorRect: [Zrzut ekranu 2026-02-11 o 02.30.42] only to be met with this error: E 0:00:00:837 draw_list_bind_uniform_set: Attempted to use the same texture in framebuffer attachment and …

Any help would be appreciated.