Fairly new to stable diffusion (have messed around with it on an off over the last year or so), what would be the best way to output at the above resolution? It’s for a desktop background that will stretch over multiple monitors (2 1280x1024 monitors and 1 2560x1080 monitor, plan to split the image in 3 and just crop off the top for the side monitors), thus the insane width.

How should I do this? I have heard SD really prefers your generation resolution to be near the training resolution ,so what would be the best generation resolution with the correct aspect ratio?

Then theres the matter of upscaling it, highres upscaling doesn’t go high enough for width on it’s own (not to mention my 7800xt probably couldn’t handle it VRAM-wise anyway, but maybe it will if I switch to --lowvram), do the AI upscalers in img2img prefer full integers for scaling like regular scalers (e.g. 1080p to 4k looks nicer because it’s a clean 4x pixels) or can I put in say 3.65x scale and it won’t have much of an impact on the final image quality or make the ai upscale weirdly and hallucinate things?

I’m using automatic1111 btw