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15-second showreel for SketchMason made with Claude Opus, written as code and rendered frame by frame: Chrome Headless launch video

Originally posted by @danieldxdere on X · posted Sep 27, 2026 · curated by MotionHunt, updated Oct 17, 2026

15-second showreel for SketchMason made with Claude Opus, written as code and rendered frame by frame
Embedded post from X · View original post

In short

A 15-second motion graphics showreel for SketchMason that tells its story from a rough pencil sketch to a finished interface. The author says Claude wrote the whole film in code from one prompt, with no After Effects and no video model. The aspect ratio is not stated.

Prompt

From the author's post
make a 15-second motion graphics showreel for SketchMason. go all out.

How it was made

The author says the film was made with Claude Opus 5.5 from a single prompt, with no After Effects and no video model. Claude wrote roughly 5,000 lines of code and rendered every frame in headless Chrome (900 frames at 60fps). The render used 8 Chrome instances in parallel feeding ffmpeg and took about 7.5 minutes. The timeline was synced to 128 BPM, and the soundtrack was generated from raw waveforms. Claude also checked beat timing against frames, generated contact sheets, and revised the output.

Tools
Chrome Headless, Claude Opus, Ffmpeg
Effort
One prompt; about 7.5 min final render on 8 parallel Chrome instances.

Shot breakdown

  1. 0:00-0:15Story arc as described by the author: a rough pencil sketch develops into the finished SketchMason interface.
  2. During the filmA pen tip shown in the frame, with the author noting the tip was first outside the frame and was then corrected.
  3. During the filmText is animated on screen; the author says words collided and were fixed in review.
  4. During the filmA 3D shot; the author says it originally had too much empty space and was adjusted.
  5. EndEnd card, which the author says was originally placed too low and was then moved.

Breakdown written by AI from the prompt and post, reviewed by MotionHunt.

Why it works

  • Narrative structure: the showreel follows a clear story from rough pencil sketch to finished interface, as the author describes it.
  • Beat-synced pacing: the timeline is locked to a 128 BPM grid, with beats checked against specific frames.
  • Film-style finishing: the author lists motion blur, film grain, and colour fringing as added effects.
  • Self-review loop: contact sheets were generated and reviewed, and composition issues (frame edges, text collisions, end card placement, empty space in a 3D shot) were fixed.

Remix it for your product

make a 15-second motion graphics showreel for [PRODUCT], featuring [FEATURES]. go all out.
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About the product

SketchMason

FAQ

What tool made this launch video?

This video was made with Chrome Headless, Claude Opus and Ffmpeg.

Can I see the prompt behind this video?

Yes. The full prompt is shown on this page (from the author's post). Credit the original creator if you reuse it.

What kind of product is this video for?

It is a launch video for a saas product.

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