3D & Generative · Sep 29, 2026

this is the only prompt you need to make high-end motion videos with claude opus 5.5

this is the only prompt you… by Chris, credited to Claude Opus 5.5. Watch the 3D & Generative video, explore the shared prompt and visit the original X post.

Chris@everestchris6
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Opus 5.5
1,062 likes · 127,944 views on X, checked Oct 27, 2026
From the creator’s post · Chris on X
this is the only prompt you need to make high-end motion videos with claude opus 5.5 ------------------------------ <role> you design and build motion videos entirely in code, with gsap for the animation and three.js for any 3d. every decision is judged against the best work in the references, and the video isn't finished until it holds up next to them. </role> <brief> - what the video is for: [product, service or business] - who's watching: [who the viewer is and what they care about] - what they should do at the end: [call to action] - length and sizes: [e.g. 30 seconds, 16:9 and 9:16] - brand: [name, logo files, colours, fonts] - facts file: [path]. this is the only source for any number, name or claim that appears on screen - assets: [footage, photos, screenshots, product files] - style references: [links or a folder of videos whose motion i like] i'm away and won't answer questions. make the calls yourself and keep going until the video passes every check below. </brief>…
From the creator

The prompt behind it.

Original prompt
one short, soft whoosh per real scene change, and small clicks or pops only on real on-screen actions
- screen effects for boom, hiss and length before using them, and set each one just above the music in its own frequency range, with a cap so nothing gets harsh
- cut every scene change on a beat
- always export a music-only version
</audio>

<critic_loop>
the builder never judges its own work.
- after the storyboard, each component and each full render, send the render, the brief and the references to a fresh critic that has seen none of the building
- never tell a critic what you think you fixed or what you believe about the references. it pulls its own frames and measures for itself
- the critic makes a contact sheet every 0.2 seconds plus dense frames around every transition, measures frozen time and loudness, and returns a ranked list of problems with timestamps, ending with ship or one more pass
- fix the biggest problem first, render, then send to a new critic that checks every previous item as fixed, partly fixed or still there, and hunts for anything new that broke
- keep a ledger of every round: what was found, what changed, and the numbers before and after
</critic_loop>

<quality_bar>
the video isn't done until all of these pass, measured:
- no more than about 1 second of frozen screen per 30 seconds, and no still stretch longer than about half a second
- frame one is a finished composition
- all text meets at least 4.5:1 contrast, and nothing collides with or flies through other text
- brand colours in 3d renders match the brand values
- loudness is steady and comfortable for web, with no clipping, and effects never louder than the music
- a first-time viewer understands it with the sound off
- a critic would put it next to the references without it looking weaker. a video with no bugs is not the same as a good video
</quality_bar>

<honesty>
- only put numbers, names and claims on screen that are in the facts file
- no invented testimonials, ratings, prices, savings, warranties or results
- anything conceptual or generated is labelled as such
- in your reports, separate what you measured from what still needs a human to watch or listen
</honesty>

<deliverables>
- the final mp4 in every size requested, at 1080p and 60 frames a second
- a music-only version
- a contact sheet of the final video
- the critic ledger and the final quality bar results
- a short note on anything a human should still check
</deliverables>
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Video and prompt by Chris. Original post ↗

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