>>3022573Also, it's better to upscale to 2560x1440 first.
1MP straight to 4K will almost always be deformed.
I found this out when trying to i2i old 2.5K to 4K.
If you can't get a good result you should give up.
Gen a good 2.5K. Maybe add a refiner pass and use illustration janai esrgan instead.
>>3022574Unfortunately I don't know how to. I'm still a newbie and trudging along by trial and error.