Put two characters in one image
See the featureTwo trained characters go into the same image in Create an image: each one plays through its own LoRA. The app first composes the scene with both, then goes over each one's part of the image again with its LoRA. Since 0.9.0, there are no LoRA slots to stack any more: a LoRA goes through its character.
Train both characters first
Each character needs its own image LoRA, trained the normal way from its own photo dataset (see Train a LoRA). Do not try to combine two people into one LoRA: they have to be trained and stored separately for a duo to work.
Connect the two characters
Click Add a subject, pick the first character in the Characters tab, then its Character LoRA tile at the top of the window. Do the same for the second one. Each card then shows the LoRA badge.
Write the scene
Call each one by @ and its name: "@Lea and @Lucas share a laugh at a cafe table". Picking a character puts its @ in the scene, and that @ sends its trigger word, its age and its gender: click it to see exactly what is sent, and change the text if you need to.
Each one's place follows the order of the cards: the first is on the left, the second on the right. To swap them, connect them again in the other order. Describe what tells them apart (outfit, hair) and the scene they share.
Balance the two
- Strength: the strength of the character's LoRA, 1 by default, 1.5 at most. If one face comes through less than the other, raise its strength a little.
- LoRA pass (30 to 90 %, 55 % by default): the share of its half of the image that its LoRA repaints. Higher, it is more faithful to its LoRA (hair, outfit) but the background around it moves. Lower, the scene stays and the LoRA mostly corrects the face.
A landscape or square format gives two figures room to stand side by side. Because the result varies from one render to the next, generate several at once (Images per run: 4) and keep the best one.
Where it renders, and the price
A duo renders on your own graphics card on Windows when both LoRA files are on your PC; otherwise a message offers Switch to Cloud GPU. On Mac, a duo renders online. It takes three passes either way: one to compose the scene, then one per character. Online, each pass costs the price of one image; on your computer, it is free.
With the Pro licence, the API and connected agents can also put several characters in one image (see Pro API: images).