Creating Consistent 2D Characters with AI for a NSFW Visual Novel – Need Advice!

[pokeraces89]

Hi everyone,

I'm currently developing an adult visual novel using Ren'Py and I need help with character creation using AI. I already have experience running AI models locally on my PC (I use Fooocus), but I'm struggling with maintaining character consistency across different poses, expressions, and scenes—especially for NSFW content.

Does anyone here have experience generating 2D characters with AI while keeping them visually consistent across multiple images? What tools or workflows do you use to ensure the same character can be generated in various situations (different facial expressions, outfits, and even NSFW scenes)?

Additionally, I’ve seen people using Koikatsu for character creation in visual novels. Would it be a better alternative for maintaining character consistency compared to AI-generated art? If anyone has experience with both approaches, I’d love to hear your thoughts on the pros and cons!

I’d really appreciate any guidance on the best methods, whether it’s fine-tuning models, using control nets, or exploring Koikatsu as an option. Looking forward to your insights!

Thanks in advance!

 

[osanaiko]

1. Use a LORA (make one for your specific character / art style if none exists already (no i don't know how to do this yet, haven't needed to))

2. Use a simple "look" with maybe one distinctive aspect to make it obvious which character is which. This applies to clothing as well as body shape/face/hair. AI gen sucks at maintaining consistent clothing detail, so keeping a simple goal makes your life easier.

3. expect to have to do at least some manual editing of the outputs

4. i've found it works well to do cut-n-paste "frankensteining" body parts from several different outputs (or even external sources) into a base image then use IMG2IMG to make it look like your desired art style.

5. PonyXL model and derivatives are best for 2d art sex poses. consider using that as the base for your LORA.

I'm following a very similar process in my game dev "journey", so come over to my dev thread (https://f95zone.to/threads/the-moor...g-titty-snobbish-girl-slow-corruption.205564/) and read up for more details (and jokes and whining)

 

[Obiyo]

Have you tried comfyui ? Fooocus imo is too simple.