Cable ads: the connector still cannot morph
Identity hold.
Identity hold. The connector is the SKU: housing colour, keying, pin count, strain relief, the marking a tech will match on a drawing. Motion is allowed. A new shell halfway through the clip is not. If the keying swims or a third mating face appears at second twelve, you have a cousin of the part you cannot sell.
Seedance 2.5 is the still-to-motion family. The image-to-video row animates a single still into a continuous clip at up to 720p, four to thirty seconds, native audio with the picture. A second image can set the closing frame when the move has a destination. The product video generator is the tool-shaped door: two or three clean angles of the real object, then camera and scene around it.
Housing, keying, pins — that is the brief
A cable-assembly still is a locked plate. It is not a paragraph about "industrial connector on brushed metal." Paragraphs invent connectors. Image-to-video does not reopen the art direction. Frame one is the file you sent.
Assemblers photograph the part they will ship, not a family resemblance. Attention risk is whether the clip stops a buyer. Identity risk is whether the connector is still the one on the BOM. Eight seconds of the wrong keying is a different SKU.
Do not text-to-video "exact RAL of our housing, keyed to prevent mismatch" and hope the model honours a still you never attached. Make the still. Then animate it. Seedance I2V is still the still-to-motion job is the router.
Hold identity for the whole pass
Prompt camera and physics only. Slow table-top orbit. Locked tripod. A mating motion the still already implies. Do not describe the pinout. Re-describing the housing is how the model treats the housing as optional.
Keep the connector large in frame. Fine markings and pin geometry are the first thing a generator loses. If the part number must read, it has to fill the frame at the start.
Thirty seconds in one pass is why this family holds a SKU: stitching four short text-to-video clips is how the keying drifts. 720p is the ceiling on this I2V endpoint. A 2K hero plate is a different model. Identity is still the I2V choice.
A last frame is optional, and only when it is a second approved still of the same part. A last frame from a different connector family is a morph. Do not call that the same listing.
Two different connectors is a morph
First-last as the product-turn model is for an object that must remain itself while it rotates. Two stills of the same connector, front and three-quarter, is a turn. Two competing housings is a morph. Cable ads cannot morph. The drawing will not.
A/B two part numbers as two I2V clips from two stills. Do not interpolate between them and hope the middle is a third SKU. The middle is where generators invent pins.
Lifestyle around the cable is a split file. I2V for the connector; a talking or scene model for a person, if you have one. Inspect every take at 100% on the marking and the key. Re-run rather than retouch.
Read the marking at 100%
Pause on the connector. Is it the still you would send to the shop? Yes → ship the motion. No → you prompted a scene, used text-to-video, or first-last'd two different parts. Fix the still. I2V will not rescue melted type.
The product video generator is the same rule: photograph the part, describe the scene not the product, generate, cut for the placement. Hold the connector.
FAQ
Can I text-to-video "our connector rotating on a bench" and skip the still?
You can. You will get a connector. It will not be the connector often enough to run as the listing. Seedance I2V exists because the still is the spec.
Do I need a last frame for a simple orbit?
No. One hero still plus a camera move is the usual job. A last frame is control when you must land on a second approved still of the same part.
Why not first-last between the CAD render and the photographed assembly?
Only if both plates are the same part, connectable in the duration, and you accept a warp if the crop is unrelated. A transparent CAD of the housing to a lifestyle photo of a different keying is not a turn. It is a morph. Prefer I2V from the photographed part once you have it.
Is 720p enough for a product ad?
For feed, yes. For a print proof or a 2K plate, you are on a different generate — still start from the locked still. Resolution is delivery. The SKU is the I2V choice.