# Revise a video step by step

> The whole Optic flow with the labels you see on screen — choose a clip, choose the seconds, describe, press Revise once, download.

This is the whole flow, with the words you see on the page. Open **Studio** and press **Revise a clip**.

## Steps

1. **Bring your clip.** Press **Choose a clip** to open your Gallery and pick a video, or press **Upload** there to add one from your device. On a computer you can also drop or paste a video anywhere on the page; on a phone the Gallery can **Take a video** with your camera. While it uploads, the page says *"Your clip is on its way."*
2. **Choose the stretch.** Under **Your clip**, drag the window — or its **Start** and **End** handles — to the seconds you want revised, right up to the clip's last moment if you like. Optic revises up to 60 seconds of a clip; a longer clip is fine, you choose which seconds. The footer shows how many seconds you chose. With the keyboard, the arrow keys move a handle; hold Shift to move it further.
3. **Press Confirm.** The line beside it changes to *"Range confirmed."* Moving the window later asks you to confirm again.
4. **Say what should change.** Write in the words box. Add pictures with **Add** if you want to show what something should become — everything a picture shows of the subject comes into your video, so pick one that shows it exactly as you want it — and type `@` to point at one of them. Mark a subject with **Focus** and type `#` to point at it by its name. See [Writing Optic prompts](https://routix.studio/help/prompts/writing-optic-prompts).
5. **Choose the quality.** The **Quality** chip offers 720p or 1080p; it starts on 720p.
6. **Check the price.** The button shows **Revise · … credits** as soon as your clip is in. The price depends only on the seconds you chose and the quality — your words and pictures never change it.
7. **Press Revise.** This one press is the payment: the price on the button is what is held from your balance, and the work starts at once — there is no second press. While your film is made, the range control leaves the page.
8. **Wait for your film.** The panel **Your film** says what is happening — *"Reading your clip."*, *"Preparing what the change needs."*, *"Making your film."*, *"Finishing your film."* — with how long it has been working and about how long is left. Until the making starts, you can press **Stop**.
9. **Download it.** When it says *"Your film is ready."*, press **Download**. Switch between **Before** and **After** to compare.

If the film cannot be made, every credit held for it comes back to your balance, and the panel says why. See [When a revision does not work out](https://routix.studio/help/optic/when-a-run-fails).

## After it is ready

- **Revise again · … credits** makes the same stretch with the same words again, at the price on the button — one press, like the first.
- **Share** puts the film on your public page — see [Sharing your work](https://routix.studio/help/community/sharing).
- **Your films**, under the clip, keeps the films you made from it; **All history** opens History.

## Frequently asked questions

### When are credits taken?

When you press **Revise**. The price on the button is held then — the same price you saw — and it is kept only when your film is delivered. If the film is not delivered, every credit comes back on its own.

### Why did the range control disappear?

Once you press **Revise**, the page shows only your film's progress and **Stop**. The range control comes back when a run is stopped or turned down, ready for your next revision.

### Can I close the page while my film is being made?

Yes. Everything after the press — reading your clip and making your film — happens on ROUTIX's side. Your film keeps being made and is waiting in Studio and in History when you come back.

Source: https://routix.studio/help/optic/revise-a-video · Updated 2026-10-24