And every layer of it is yours to specify.
A social post is not a caption with a picture. It is a rendered video with a thumbnail, a voiceover, burned-in captions, motion, a music bed and two aspect ratios — and every one of those is a decision you make, or a decision someone else makes for you.
| Layer | What you specify | Specific enough | The usual failure |
|---|---|---|---|
| The composition | Which Remotion composition, how many scenes, how long each holds. | “SceneReel, 6 scenes, 900 frames at 30fps — scene 3 holds 5s, the rest 4s.” | “About 30 seconds.” The renderer cannot act on that. |
| The focal element, per scene | One thing the eye goes to in each frame, and what it does. | “Scene 2: the temperature reading, centred, counting up to 18°F then holding.” | Two focal points in one frame. Reads as neither. |
| Motion | Which sanctioned move, and where it starts and stops. | “Convergence on scene 2 only. Nothing moves during the price card.” | “Add some nice animation.” Unbriefable, unreviewable. |
| On-screen text | Every word that appears, exactly as it appears. | “Seven checks. About 70 minutes.” — scene 1, lower third, 2s in. | Leaving captions to whoever renders it. On-screen text is copy, and the voice gate checks it. |
| Voiceover | The script verbatim, plus pace, register and where it breathes. | “Calm, conversational, unhurried — a neighbour on a driveway. Pause before the price. No lift at the CTA.” | Writing the words and leaving the read to chance. The same sentence sells or reassures depending on delivery. |
| Captions | Burned-in styling, position, and whether they mirror the VO exactly. | “Burned in, bottom third, safe area above the platform UI. Verbatim.” | Forgetting that most viewers watch muted. Captions are the primary channel, not an accessibility afterthought. |
| Background music | The bed, its level under the voice, and what it must not do. | “Light acoustic, well under the read, no build and no swell at the CTA.” | A track that crescendos into the call to action — the single fastest way to make honest copy sound like an advert. |
| The thumbnail | The still that decides whether any of the above is ever seen. | “Technician mid-check, report visible, no text overlay.” | Treating it as an export setting. It is the most-viewed frame you will ever make. |
| Both aspect ratios | 16:9 and 9:16 from one source, and what survives the crop. | “Scene 2 is the widest — check the reading is still legible vertical.” | Briefing only the horizontal. The vertical cut is where the point gets cropped out. |
| Audio master | Levels, so it does not arrive quieter than everything around it. | —16 LUFS, consistent across the week. | Not yours to execute, but yours to notice when it is wrong. |
Most people brief at about thirty per cent of what the system can do, because they are used to tooling that punishes ambition. Here the render cost of an elaborate scene and a plain one is roughly the same. Under-briefing is not caution — it is leaving the work unfinished and calling it a style.