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h3 recast
Upload a few portraits and H3 Recast puts new people into footage you've already edited — pacing, framing and sound stay exactly where they are.
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What Makes H3 Recast Different
This tool never re-shoots a scene. It reads footage you already have, then rebuilds the on-screen identity from your portraits while the performance stays intact.
- Recasting Instead of RegeneratingThe original pixels stay put. H3 Recast only re-maps who is standing in frame, so the take you approved keeps its exact motion and timing.
- Up to Four New Faces, Mapped Left to RightHand over four portraits at most and each one claims a lead role, holding that same identity through every shot the person turns up in.
- Acting, Edits and Sound Come ThroughEvery glance, gesture and beat of the performance survives the swap, along with the lighting as it falls and the finished audio mix.
How H3 Recast Works in Three Steps
From an edited clip to a fresh cast: three short steps, no timeline work required.
What H3 Recast Handles for You
A closer look at what stays, what changes, and how to protect the original styling when it matters.
The Same Face Through Every Cut
Once a portrait is assigned, that person keeps the role in each shot they appear in, so the casting stays consistent as the edit jumps between angles.
Reorder the Cast with a Prompt
Pairing defaults to left to right; name each on-screen figure and its photo in a short prompt to change who becomes whom.
Keep Hair and Wardrobe Intact
An empty prompt lets the portrait's styling travel with the face; request a face-only swap when the original look has to stay as captured.
Cheap Preview Before the Final Render
A fast 768p pass tells you whether the cast reads correctly before credits go toward a full-resolution export.
Same Length In, Same Length Out
The result runs exactly as long as the clip you fed in, so spend scales with runtime instead of an arbitrary setting.
Pacing and Audio Left Alone
Cut points, tempo and the finished mix are untouched, which means the new version drops straight back into your timeline.
H3 Recast: Questions Answered
Straight answers on swapping the people in an already edited video with H3 Recast.
How long should my source clip be?
Anywhere from five to thirty seconds, with no single shot beyond fifteen. Trim long takes first — the export matches your input length.
How many faces can I swap at once?
Four at most, one portrait each. Lead figures are claimed left to right by default, and a short prompt can reassign that order.
Which photos give the cleanest result?
Sharp, evenly lit, front-facing portraits. Avoid sunglasses, hats, covered faces, group photos, blurry files and heavy filters.
Does the portrait also change hair and clothing?
Frequently yes when no prompt is given, even from a tight head crop. Request a face-only swap if the original hair and outfit must survive.
Is it worth previewing at 768p?
Yes — validate the casting at 768p first, then finish at 1080p. Pricing tracks clip length rather than resolution alone.
When is this the wrong tool?
When you need new movement, a different camera angle or another location. Crowds, small faces, fast action and heavy occlusion break the swap, and likeness can drift over long shots.
Give Your Finished Clip a New Cast with H3 Recast
Start with footage that is already edited and scored, then change who appears on screen. H3 Recast holds the rhythm, framing and mix exactly in place.