Convention halls: the empty floor still, then a hook pack
Body once. Openings many.
Body once. Openings many.
A convention hall that regenerates the room for every paid-social test will invent a second truss, a drifted banner, and a floor plan the ops team does not recognise. The empty floor is a still you already own. Animate it once. Then buy a pack of distinct openings and attach the winner. Seedance 2.5 Image to Video is the body. Create a branded hook pack is the set of first seconds. Those are two objects. One prompt is not both.
Photograph the empty hall; do not prompt it
The buyer cannot picture a styled event from a paragraph. They can picture motion on this floor: this ceiling height, this column grid, this loading dock. Lock a still of the empty room you actually rent — daylight, wide, no invented crowd.
Seedance 2.5 I2V animates a single still into a continuous clip at up to 720p, four to thirty seconds, native audio with the picture. Image required. Forty-seven credits listed. Features: image-to-video, first frame, last frame, long form, audio sync. A second image can set the last frame when the move has a destination — a push that must land on the stage, a pan that must end on the doors you actually have.
Image-to-video keeps that file as frame one. Prompt camera and light only: slow push down the aisle, no new booths, no generated attendees, no signage the model typesets. Text-to-video will re-decide the architecture. That is a different building. You cannot sell a different building.
720p is the ceiling. Do not send the empty hall through a talking-presenter row and hope the mouth explains square footage.
The hook pack is openings, not a restage
create_hook_pack takes a brand description and returns N distinct scroll-stopping UGC hooks, charged once for the set. The agent plans the lines so they do not repeat, quotes the figure before you confirm, and submits every clip as a 1080p portrait job rendered with Vidu Q3. Each finished hook has the line burned on as big TikTok-style text.
That is a pack of first seconds. It is not a film of your hall. It does not pick Seedance versus Veo. Vidu Q3 is fixed so the variants are comparable. create_hook_pack is a pack of openings, not a finished film.
Brief the offer: the room, the date window, the objection. Count five unless you have a reason. Do not paste the five taglines you already like — that turns the pack into a renderer. Do not ask the pack to "show the ballroom." The pack will invent a ballroom. You already have a still.
Body once. Attach many first seconds.
Approve one empty-floor still. Run Seedance I2V for the body. Run the hook pack against that offer. Score distinctness cold. Stitch the winning open onto the body you already trust. Do not regenerate the hall to "match the energy" of each hook.
Five I2V jobs of the same floor are five chances for the columns to drift. Five separate "give me a hook" generates are five prices and, usually, five cousins of one sentence. The pack's planner can see the set. Five independent prompts cannot.
Slogans and the booking URL are type you wrote. Burn them after picture lock. Generated type on a truss is a misspelled string you cannot edit. The body can stay the same empty floor for a month. A styled event still is a different plate — photographed with a grant. Do not prompt Seedance to "fill the room with a gala" off an empty jpeg. Filling is restaging. Restaging is a second hall.
FAQ
Can the hook pack generate the empty hall for me?
No. The pack is N planned portrait opens on Vidu Q3 with burned text. Architecture is an I2V still. Brief the offer; animate the room on Seedance.
Does a five-hook pack cost five Seedance jobs?
No. The pack is charged as a set, shown before you confirm. The hall body is a separate I2V generate. Do not buy five hall clips because you needed five openings.
Should I I2V a crowded show floor as the body?
Only if that still is a show you have the right to use, and faces in it are cleared. Prefer the empty floor you own. Crowds are likeness. The empty room is the product.
Can I name Veo inside the hook pack so the open matches the hall?
Not as this job. Comparability is the product. Route a cinematic hero somewhere else after you pick the line. The pack will not become a 4K flythrough because you asked.