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How to hug

August 2, 2023 at 9:46 am, No comments
AI still struggles with pictures having multiple characters. At least as long as you want to fix these characters' appearances in any meaningful way. It just lacks the concept of different persons: if you say you want a girl with blue hair and a boy with red hair, then you mostly end up with a girl and a boy, both having some arbitrary colors between blue and red... Keep trying and you might get the right result, but if the boy is supposed to wear glasses and has short hair and the girl not and there are even more parameters, then it's getting tricky and NovelAI will not get it.

What to do?

One possibility that we have used a lot is to copy paste: just design the characters separately and then add them together in your graphics software. Works for pictures where the charaters do not interact too much, like our huge group photo:


However, if you want some interaction, e.g. two girls hugging, then this fails.

What to do then?

You can use two pictures as a start:


Here I've used the description of Patti (left) and Azuki (right) and told NovelAI that there are two girls looking like that and hugging. The results were good. (Okay, you might notice that Patti's arms... well... but that's fixable...)

In the next step we then superimpose both pictures on two layers and just remove one person from each layer. In reality that needs a lot of fine tuning, as the postures are not exactly identical, but you can see that the amount of changes that need to be done are definitely doable, even for someone who is not a professional artist. 

In the final picture, we added two more girls to the left and right, some background, and so we get a sweet farewell scene:


It's not perfect, I know, but overall it's quite sweet, I think. What do you think?


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