Regenerate is a new take, not an edit

A take comes back and something about it is wrong. The label is turned away at the moment you would have paused. The highlight sits on the wrong edge. The whole thing feels colder than the product is. There is a regenerate button, it takes one click, and the obvious thing to do is press it.

Sometimes that is exactly right. Often it is a way of paying twice for the same disappointment, and which one you are about to do is knowable in advance.

What the button actually does

Regenerating is a new attempt at the same brief: the same prompt, the same aspect ratio, a fresh seed. It is not an edit and it does not adjust anything. Nothing you were unhappy with is passed back in as a note. The system is not told what you disliked, because there is nowhere for you to have told it.

So it is better to think of it as a second take of the same setup than as a revision. The camera rolls again. Whatever was decided before the camera rolled is still decided.

The one question that sorts it

Before pressing anything, name the fault out loud in a few words — not "it's a bit off", but the actual thing. Then ask one question about it:

• Would this be different if the system simply rolled again?

That question sorts every complaint into three groups, and the three want three different actions.

Things that vary between takes

Which camera move you got. Where the light lands. Which instant of the ten seconds the label happens to be square to camera. Whether the product enters the frame or is already in it. These genuinely differ from take to take, because they are the part the fresh seed decides.

This is the group regenerate exists for, and on this group it works. If your complaint is here, press the button.

Things the mood already fixed

Now the group people misread most often. Whether the film reads as cold or warm, quiet or busy, expensive or everyday — that is the treatment you chose, and it is not a random draw. It will be the same on the next take, and the take after that, because you asked for it and the system is doing what you asked.

If your complaint is really "this is not the register I wanted", regenerating is the one action guaranteed not to help. Change the mood and shoot again. That is a different brief, so it produces a genuinely different film rather than a different sample of the same one.

This is the part worth internalising, because it is the expensive mistake. Three rerolls chasing a warmth that was never in the brief cost three renders and end where they started.

Things your photo already fixed

The third group is the one the regenerate button never reaches. Shape, colour, finish, materials, the logo, the text on the packaging, which version of the product it is — all of that is conditioned on the photo you uploaded, and holding it steady is the entire point of shooting this way rather than describing a product to a generator.

That means fidelity cuts both ways. If the product looks wrong because the photo was wrong, the film is not misbehaving; it is being accurate about the photo it was given. No seed and no mood will edit your product. Upload a better reference and start again.

The other case in this group looks the same and is not. If the product in the film no longer matches the photo — a letter in the logo changed, a cap redrawn, a matte finish turned glossy — that is drift, not fidelity, and it is not yours to pay for twice. Report the render instead of regenerating it: an automatic check compares it with your reference photo, and if the product drifted, that render's credits come back.

Scuffed packaging in the reference stays scuffed. A retired label stays retired. A photo that never showed the back of the item cannot be asked for the back of the item.

Why this is worth two minutes

Every attempt is a render, and every render is charged. There is no free reroll on any plan, which makes the diagnosis worth more than the click. Two minutes spent deciding which of the three groups your complaint sits in is the difference between one deliberate second take and four hopeful ones.

There is also a fourth verdict, and it is worth allowing yourself. Sometimes the take is good, the brief was right, the reference was current, and the thing you are unhappy with is the product's own presentation — the box really is that plain, the colour really is that flat under even light. That is useful information and it arrived cheaply. It is not a rendering problem, and it will not be solved by rendering.

The short version

Name the fault. Ask whether it would be different next time. If yes, regenerate. If it is the register, change the mood. If the photo was wrong, change the photo. If the render changed your product, report it. If it is none of those, you have learned something about the product rather than the film.