Skip to content

How to Change One Element in a Finished AI Video Without Regenerating It

2026-09-16 · blog how-to · Higgsfield · original

Topic: Post-production & finishing (also: Cost, credits & plans) · mode: Tutorial · tags: flattened table

Higgsfield's blog shows how to change one element of a finished AI video by pointing at it and describing the replacement, so camera, lighting and timing stay as rendered. Genjutsu Object Swap replaces a product, outfit, prop or character; Genjutsu Motion Transfer reuses a clip's movement with a new cast or setting; Seedance 2.5 Edit changes a region you mark or a change you prompt; Video Relight fixes the lighting. A new performance, a change of timing, an object of very different shape or several connected changes still need a full regeneration.

What is said

  • Where you still regenerate

What is said

★ — how much it matters to the source.

  • ★★★ To change one element in a finished AI video, Higgsfield's blog advises pointing directly at what needs to change (an object, a region, or a movement or performance) and describing the replacement, so camera, lighting and timing stay as rendered. · Genjutsu
  • ★★ Higgsfield's blog says the same model run twice with the same prompt rarely returns the same clip: the character may look slightly different and the camera may frame the shot from another angle.
  • ★★ Higgsfield's blog says regenerating an approved clip to fix one small thing can bring back a different camera drift, an off expression or a changed opening moment, the hook that made the ad work.
  • ★★ Higgsfield's blog says a full regeneration can also cost more than a local edit, because every retry rebuilds the entire clip.
  • ★★★ Genjutsu Object Swap replaces one specific object in a video (a character, an outfit or a product) while the camera, lighting and motion of the shot stay as filmed. · Genjutsu, Object Swap
  • ★★★ Genjutsu Motion Transfer takes the motion, camera work and timing of an existing video and applies them to a new scene with a different subject or setting. · Genjutsu, motion transfer
  • ★★ A Genjutsu generation (Object Swap or Motion Transfer) takes up to 30 reference images and one source video up to 30 seconds, driven by a prompt or by a preset with no text, and outputs up to 1080p. · Genjutsu, Object Swap, motion transfer
  • ★★★ Seedance 2.5 Edit changes a clip either from a prompt describing the change, with the model choosing where it applies, or Draw to Edit, marking the exact region on the frame first and then describing what happens inside it.
  • ★★ A Seedance 2.5 Edit generation takes up to 50 references and video up to 30 seconds, and outputs up to 1080p.
  • ★★ Genjutsu workflow: upload the source video and pick Object Swap (change one thing) or Motion Transfer (carry the motion onto a new scene), add references for the replacement, describe the change in a prompt, generate and review against the source. · Genjutsu, Object Swap, motion transfer
  • ★★ Seedance 2.5 Edit workflow: upload the source video, write the change as a prompt or draw on the frame where it should happen, add reference photos or videos, generate and review against the source.
  • ★★ Higgsfield's blog lists Genjutsu Object Swap and Genjutsu Motion Transfer at $4.95 each, with pricing checked in September 2026 and credit costs varying with duration, resolution and settings. · Genjutsu, Object Swap, motion transfer
  • ★★★ Higgsfield's blog advises Video Relight when a shot is correct but its lighting is not: pick a preset, let Auto choose a setup, or build up to two custom lights with direction, colour, brightness and diffusion.
  • ★★★ For changing a product, outfit, prop or character in a finished video, Higgsfield's blog recommends Genjutsu Object Swap. · Genjutsu, Object Swap
  • ★★★ For changing the cast or setting of a video while reusing its original movement, Higgsfield's blog recommends Genjutsu Motion Transfer. · Genjutsu, motion transfer
  • ★★ For a change to a specific marked region, or a local change described in a prompt, Higgsfield's blog recommends Seedance 2.5 Edit.
  • ★★★ Higgsfield's blog says some changes to a finished clip usually need a new source performance or a full regeneration rather than a local edit: a different action or performance, a change of duration, pacing or shot structure, an object of very different size or shape, new contact or occlusion, or several connected elements changing at once.
  • ★★ Higgsfield's blog says replacing an object with one of very different size or shape usually needs a full regeneration rather than a local edit, since the new object still has to move as the original did and a big mismatch in scale or shape breaks that fit.
  • ★★ When camera, lighting, motion and objects all need to change together, Higgsfield's blog says a full regeneration tends to hold together better than stacking several local edits.

Threads in this video

Where the stories that moved here went next

Mentioned

Central: Genjutsu · motion transfer · Object Swap · Seedance 2.5 Edit

Also: Video Relight

Also centred on Seedance 2.5 Edit: AI Video Restoration: How to Enhance and Restore Old Footage to High Quality · How to Create 100+ Ad Variations With AI: Swap Hooks, Products, and Languages

← Previous: Changelog: Higgsfield API is here · Next → Meet the Higgsfield API: How It Works and What You Get