install extension
ADetailer and Reactor in AUTOMATIC1111
Let's say you have your generated image and you want to replace a specific face...
(same you can doo in img2img-tab), works best with small faces
first it depends how "good" is your face, sometimes in pony-models it is worse so you need first ADetailer (if not go to Reactor)
ADetailer:
Choose
face_yolov8n (maybe try other)
write in prompt what you want for your face i suggest eg. (old woman, old man, looking at viewer, smiles, (freckles:0.5), (wrinkles:0.5) ) ... in negative prompt mabe "teeth" (so smile without teeth -> grin)
(old because later the the swaped face looks more real)
next, i would only play with ADetailer/inpaint, there you can change
Inpaint denoising strength play from 0.4 to 0.6
and if the face still worse you must choose another checkpoint (needs not more VRam but more time to load while generating) you can choose in ADetailer
Reactor:
(Extension Faceswapper is often not working, it does not finde the face)
first you need to generate your face, go to tab "tools", you can choose one image, i suggest to chose at least 3-5 (much more makes no sense), so tab "blend" and build ...
back to main (Select Source) "Face Model", (Reload - icon), choose your model
i suggest
Restore Face Visibility: 0.7-0.9
and
CodeFormer: weight 0.1
original-image
swapped (200% zoom)
******* original ******* -> ******* ADetailer ****** ->******* Reactor *******
okay, now you can try ...
have fun :P
anny questions? ;)