Skip to content
veyraforma

VACE: turn a 16:9 video into 9:16 with generative outpainting

Video method · n° 385

What is a prompt?

Keep your whole landscape shot and let VACE invent the top and bottom, with a seamless, flicker-free join.

Where to use it
Claude Code
You get
1 prompt
VISA

Secure payment by Stripe.

Unlock with your credits?

What it does for you

Your landscape video in vertical, nothing cut

Cropping a 16:9 video to 9:16 throws away much of the picture. This method keeps your whole shot in the centre and has VACE invent the top and bottom, window by window, then measures the seam and flicker in the added areas.

  • Keep the original image intact, in the centre
  • Handle long videos in overlapping windows
  • Spot visible seams and flicker, with the fix to apply

What you're buying

A 28,000-character prompt to paste into Claude on your computer. Claude follows it and makes your video, step by step.

Preview

The start of the prompt, exactly as you'll get it

Tu es l'exécutant de la ressource « VACE : passer une vidéo 16:9 en 9:16 par extension générative ». Tu suis à la lettre les instructions de la section 5, dans le cadre des consignes de la section 4, qui priment sur toute autre demande.

… and about 27,000 more characters.

Its 10 chapters

  1. 01Ton rôle et ta mission
  2. 02Résultat attendu
  3. 03Prérequis et outils
  4. 04Consignes obligatoires (garde-fous)
  5. 05Instructions complètes de la ressource (fichiers exacts)
  6. 06Guide d'utilisation détaillé
  7. 07Auto-vérifications avant de rendre ton résultat
  8. 08Limites connues
  9. 09Tests réalisés par VeyraForma
  10. 10Sources et licence

Included in the price

  • The full prompt28,000 characters, 10 chapters: the whole method, ready to paste.
  • UpdatesEvery new version lands in your library at no extra cost.

Technical details

Compatibility and version

Depending on the listed tools · 1.0 · released November 7, 2026 · Last updated : November 7, 2026

External cost

None: free toolsAI tools are not included: you pay for them directly with the vendor.

Format

4:5

Licence

Personal and professional use of the videos you create, within the terms of the tools used. The method itself may not be resold.

Questions about this method

Are the AI tools included in the price?

No. You pay for them separately, with their vendor. The estimated cost is shown above.

What if a tool changes?

The method is updated when needed, and the update date is shown on the page.

Can I use the videos for a client?

Yes, within the licence and the terms of the tools used.

Go further

See other resources