Can I change one shot in Visuall without redoing the whole video?

Yes. Visuall is built so that a video is a set of visible, editable steps rather than one monolithic render. You can change a single shot and re-run only that step; the unchanged steps are reused, so you don't regenerate the whole video. The site states this directly: "Change one shot, keep the rest," and "re-run only what changed; the rest is reused for free."

Why this works: the canvas is a chain of steps, not one render

On the Visuall canvas, every video is broken into boxes you can see and edit. The page describes the structure as: your story → the AI scene plan → the model for each shot → keyframes → animation → final video. Because each stage is a separate box, editing one box doesn't force the others to recompute.

The example on the site makes the granularity concrete:

If you only change the second scene's description, the story box and the other scenes' keyframes stay as they are. Only the affected frame and its animation need to run again.

The approval step is what makes single-shot edits cheap

The key mechanism is that you approve keyframes before they are animated. The site's phrasing: "Approve the frames you like before they are animated, and re-run only what changed; the rest is reused for free."

This matters because animation is typically the expensive part. By locking in the frames you're happy with, you avoid paying to re-animate shots that were already correct. You iterate on the still image first, then commit to motion only for the shots you've changed.

What "reused for free" means in practice

The site says unchanged steps are "reused for free," which implies no additional credit charge for those steps. It does not publish a per-step credit table in the material here beyond linking to "See what each step costs" on its pricing page, so treat the exact credit cost of a re-run as something to confirm on that page rather than assume.

What the material does support:

• Only the changed step is re-executed.
• Unchanged steps are reused rather than regenerated.
• The reuse is described as free.

What it does not specify here: the precise credit cost of re-running a single animation step, or whether any step carries a minimum charge.

When this workflow fits

This structure suits creators who need to adjust individual shots repeatedly — for example, fixing one scene's framing in a product film while keeping the other scenes intact, or swapping a single clip in a multi-scene short without rebuilding the whole timeline. The site's own example (a 44 BC Rome vlog built from 11 boxes, 225 credits, about two minutes of waiting) shows the box-by-box approach applied to a full multi-scene episode.

If your edits are usually whole-video changes, the per-step structure adds less value. If your edits are typically one shot at a time, it's the main reason to use the canvas.

How to make a single-shot change

1. Open the canvas and locate the box for the shot you want to change (its scene line, its keyframe, or its animation step).
2. Edit only that box — for example, rewrite one scene line, or replace one keyframe.
3. Approve the new keyframe if you changed the frame.
4. Re-run the animation for that shot only.
5. Leave the other boxes untouched; they are reused.

Expected result: the final video updates with your changed shot, and the untouched shots are not regenerated.

Common sticking points

• Changing the story box may cascade into the scene plan, since scenes are derived from the story. Edit the scene line directly if you want to avoid that.
• Approval order matters. If you animate before you're satisfied with a frame, you may end up re-running animation rather than just the still.
• Credit cost of a re-run isn't spelled out in the material here — check the pricing page's step-cost section before assuming a re-run is free.

Visuall offers a free start with 35 credits and states no credit card is required to start, per the site.