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spec(t27f): reel_particles -- the t27-basics reel drawn by a .t27 particle engine on glossy black (Closes #10305) - #10308

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spec(t27f): reel_particles -- the t27-basics reel drawn by a .t27 particle engine on glossy black (Closes #10305)#10308
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Closes #10305

What

  • specs/t27f/reel_particles.t27 -- a particle engine that draws the t27-basics reel. Every pixel is a sum this spec computes:
    • 27 lesson particles launched from depth onto damped 3D springs (semi-implicit Euler) into a 9x3 grid; published lessons (18, from reel_t27_basics.STATUS) are lit gold spheres with a halo and one specular point, drafts (9) are thin gold rings; light fades in as each settles;
    • 72 dust particles on softened Kepler orbits in a tilted plane (velocity Verlet), hues gold 45 / violet 275 / green 140 / cyan 190 from particle_field, desaturated so gold stays the one accent;
    • near-black field #0A0A0A, warm key light, glossy floor with a horizon glint and mirrored reflections at 18% fading over 300 px, slow 5% camera push, vignette, highlight roll-off, LCG grain.
    • main streams 450 raw RGB24 frames of 1080x1920 to stderr; ffmpeg reads them as rawvideo with plain flags.
  • specs/t27f/reel_particles_mux.t27 -- prints the ffmpeg filter graph (one-word yellow captions, owner voice, music, limiter, a quiet t27.ai/learn CTA line) from the numbers of owner_voice_reel.t27. Caption windows match the glass reel exactly (0.400-0.800, 3.660-4.640, 10.060-10.750 s).
  • specs/automation/owner_voice_reel.t27 -- restored. It was merged in spec(automation): owner_voice_reel -- the 15 s owner-voice reel recipe as data (Closes #10279) #10281 and deleted by the unrelated spec(claw): preview -- the T27F preview deployment of a PR as law (Closes #10282) #10287.

No code in any other language: the honeycomb deck look and its lab JS glue are not used.

Evidence (Railway lab)

  • Test report: reel_particles 18/18, reel_particles_mux 6/6, owner_voice_reel 8/8; 0 vacuous passes.
  • Reel: 15.000 s, 450 frames, 1080x1920, h264 + AAC 48 kHz stereo, -14.1 LUFS integrated.
  • Luma: frame corner YAVG 23.5 (about #090909 after the vignette), whole frame 27-31; gold present in the grid (U min 81, V max 146); floor reflections reach Y 65.
  • Engine render: 450 frames in 50 s on 48 cores.

Not claimed

The reel is not published anywhere. The field constants are design choices, labelled in the spec.

🤖 Generated with Claude Code

@gHashTag @claude
spec(t27f): reel_particles -- the t27-basics reel drawn by a .t27 par…
07f9f96 
…ticle engine on glossy black (Closes #10305)

The owner asked for a glossy black background, no honeycomb, and a picture
generated by a physical particle engine. reel_particles.t27 computes every
pixel: 27 lesson particles on damped 3D springs into a 9x3 grid (lit or draft
from reel_t27_basics.STATUS), 72 dust particles on softened Kepler orbits under
velocity Verlet, a glossy floor with mirrored reflections, key light, vignette,
tone roll-off and LCG grain. main streams 450 raw RGB24 frames to stderr.

reel_particles_mux.t27 prints the ffmpeg filter graph (captions, voice, music,
limiter) from owner_voice_reel.t27, which PR #10287 deleted by accident and
this commit restores.

Lab: 18/18, 6/6 and 8/8 tests, 0 vacuous; the reel measures 15.000 s,
450 frames, 1080x1920, -14.1 LUFS.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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github-actions Bot commented Oct 18, 2026

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PR Dashboard

Generated at: 2026-10-18 08:13:02 UTC

Summary

Status Count
Total Open PRs 50
PRs with Failing Checks 48
PRs with All Checks Green 2
READY 0
FAILING 48
PENDING 0
NO CHECKS YET 0

These columns do not partition: 0 + 48 + 0 + 0 = 48, and there are 50 open PRs. A PR is being counted twice or not at all.

Seal Status

  • ⚠️ STALE -- sha256(compiler.rs)=0f8c66b9ed0e != manifest seal=87e5cbd3ad94.
    The committed NMSE numbers were certified against an older compiler.rs.
    Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

@github-actions github-actions Bot mentioned this pull request Oct 18, 2026
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gHashTag enabled auto-merge (squash) October 18, 2026 08:16
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gHashTag merged commit 8726e58 into master Oct 18, 2026
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spec(t27f): reel_particles -- the t27-basics reel drawn by a .t27 particle engine on glossy black

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