Two possible options:
First (Preferred): Use Inpainting to take an existing portrait and make it so that person is in pain. Their identity must be clearly the same.
Second: Use usual tricks like [Celebrity 1 | Celebrity 2] or Roop to invent a brand new generated character which can be reliably generated both with and without pain.
Longer Explanation:
I need to be able to take a photo of a person and show them in various states of emotion. I'm using inpainting in automatic1111, version 1.5. I've found simple emotions like happiness, laughter, sadness, etc all very easy to do, but one that I absolutely can't figure out is pain. Or at least, I can do it, but every time I try and get my subject to look like they're in pain/agony, I completely lose their identity. It stops looking like THEM. So I'm looking for a LORA (or something) that I can use with inpainting that can take someone's portrait and make them look like they're in pain. E.g. their arm just broke and the photo was taken just at the moment that they're realizing it. All the while preserving the subject's identity so it doesn't look like someone else.
To be clear, this bounty is for the process by which I can make a person look like they're in pain while keeping their identity consistent. I THINK a Lora is the right thing, but maybe it's something else. Embeddening? Leco? I dunno.
Thank you everyone!