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Revert "feat(registry): the video-primitive moves, documented and customisable (#3090)" (#3162)

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This reverts commit 3b53bfd2f7.
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Miguel Ángel
2026-08-10 14:47:47 -04:00
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registry/components/segmentation-flood/README.md
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# segmentation-flood
Product demo / AI experiment primitive: a machine-vision read of a slotted
subject. Translucent accent segmentation masks FLOOD onto 2-4 regions in
scanline steps (rows arrive in 2-3 frame quanta: flood progress is
quantized to frame steps before any row is drawn), each completed region
gets a thin corner bracket plus a mono label chip, and a subtle HUD
flicker (a deterministic 2-frame luminance toggle) rides the pass, then
stops the instant the flood completes. Settles to a clean labeled read.
4.5s authored, elastic HOLD (never time-scaled).
Reference feel: the gmunk segmentation sheets (red masks flooding under
HUD flicker), tokenized to the contract palette.
## Mounting
```html
<div
class="clip"
data-composition-id="segmentation-flood"
data-composition-src="./components/segmentation-flood.html"
data-variable-values='{"regions":"Chassis, Payload, Horizon, Beacon","accent":"blue"}'
data-start="0"
data-duration="4.5"
data-track-index="0"
></div>
```
## Subject slot
The subject is a slot. Place an inert template anywhere in the HOST page:
```html
<template data-slot="segmentation-flood-subject"> ...subject... </template>
```
Direct `img` / `video` children are stretched to cover the stage;
arbitrary HTML fills it. A missing slot falls back to a token scene: a
surface field with muted shapes seated where the default regions land.
## Variables
| id | type | default | notes |
| -------- | ------ | ---------------------- | -------------------------------------------------------------------------------------------- |
| regions | string | Figure, Signal, Ground | Comma label list; 2 to 4 used. One mask + bracket + chip per label. |
| flood_at | number | 0.8 | Seconds when the pass starts. Clamped so the pass and any exit fit inside the clip. |
| flicker | enum | on | on or off: the 2-frame HUD luminance toggle riding the pass. |
| accent | enum | green | green maps to --brand, blue to --accent, violet to --accent-2. |
| exit | enum | none | none holds the labeled read (frame roots own transitions); fade or up add a 0.45s departure. |
## Choreography
- 0.00s: the subject settles up quietly; no overlay.
- flood_at: region 1's mask starts flooding top to bottom in quantized
scanline rows (a brighter leading row, hairline gaps for texture);
regions stagger 0.35s apart, 1.0s of flood each.
- Each region completes: its corner brackets snap in and its mono chip
rises on the same beat.
- Flood end: the flicker window closes; brackets, chips, and masks hold as
one clean labeled read.
- HOLD: dead still, elastic with the clip duration.
Sync point `flood` fires as the pass starts; align SFX to it.
## Determinism
Region geometry, per-region flood quanta (2 or 3 frames), and scanline row
counts come from one table computed once at build from fixed LCG seed
0x5e6f100d. One plain-object anchor tween feeds one painter that redraws
every mask row and the flicker wash from scratch as pure functions of the
timeline time; the flicker is on exactly when floor(frame / 2) is odd
inside the flood window. Eventful seeks land identical frames in any order
and either direction; the raster basis is the host box measured once at
mount.