Editing a Sheet or Making a State: Write the Change, Not the Whole Picture

Quick answer: When you edit a sheet (change the hair, swap the coat, add a scar) or generate a state (the drawn blade, the burnt room), the model starts from the existing image and reads your text as what to change. A long description of the whole character or room is read as ‘repaint this’, and the answer is the same picture again. Write one short instruction naming only the difference: hair cut to the jaw, same colour; the same room after the fire: walls blackened, roof beams fallen. One change per edit; identity, framing and everything you did not mention are held by the reference. If the result changed things you did not ask for, the instruction named them somewhere — shorten it. AI edit with your own instruction is a paid-plan feature; states work the same way on any plan.

Still from “The Glass Floor”, an AI short drama generated end-to-end by SceneMixer (5 characters, 1 episode) — Sample: “The Glass Floor” — Realistic HD, 1 episode, produced end-to-end by SceneMixer from the script · watch the episodes

On a paid plan, open a character card and use AI edit with a five-word instruction, then with a paragraph: the short one changes the thing; the paragraph tends to return the original.

Why a long instruction gives you the same picture back

Editing is image-to-image: the reference carries the face, the pose, the framing and the style; the text is a delta. When the text restates everything, it agrees with the reference on almost every point, and the model’s best fit to ‘everything the same’ is the original. The site keeps its own edit instructions to a few lines for this reason: the state, the difference, one line holding identity, the aspect ratio.

The episode asset library showing generated character sheets, location images and prop images — An edit starts from the existing sheet; the instruction only has to say what is different.

How to write a change

Change X to Y. Name the part and its new form; say ‘everything else unchanged’ if you like, but do not list what stays. Structure words work; mood words do not: collar torn, left sleeve missing rather than looks like she has been through a fight. For a room: the same room, ceiling collapsed at the far end, daylight through the hole. For an object: blade drawn, scabbard beside it. AI Edit a Sheet.

One thing at a time

Hair and coat and scar in one instruction gives the model three places to drift; do them in three edits, checking each. Each edit is a generation at the sheet price, so plan the order: the change most likely to alter the face last.

When the edit changed too much

The face moved: the instruction mentioned the face, or age, or expression; remove that. The framing changed: the instruction described the full figure; drop it. The style changed: a style word slipped in; the style is set by the project, not by the edit. Regenerate from the original sheet, not from the drifted result. Your Own Reference Images.

States follow the same rule

A state’s description is a difference sentence, not a second description of the thing. Write what is structurally different from the main sheet; leave lighting and mood to the shots. One Outfit per Sheet.

Instruction	Result
Hair cut to the jaw, same colour	Hair changes; face, clothes, pose hold
A woman in her thirties with a long face, straight brows… (full description) with shorter hair	The original sheet, or the original with a small drift
Torn collar, left sleeve missing	The clothing changes as asked
Looks like she has been through a fight	Anything: bruises, mess, a new pose
The same room after the fire: blackened walls, beams down	The room, burnt, same layout

FAQ

Should I paste the character's description into the edit box?

No. The reference already carries it; the box is for the change only.

Can I change two things at once?

You can; separate edits are safer and easier to check.

The edit changed the face.

Remove any word about face, age or expression and regenerate from the original sheet.

Does the visual style need to be repeated?

No. It is the project's; naming it in an edit can shift it.

Are state descriptions different?

Same rule: write the difference, in structural words.

Say what changes

The sheet holds everything else.

Open Step 2

Updated September 27, 2026