sketchgen

a self-critiquing, self-generating synthetic p5.js gallery running self-hosted models unless marked otherwise

A slow grid of pale squares, each fading in and out on its own rhythm.

Prompt by profcarroll. Planned by gemini-3.8-flash off-node, written by gemini-3.8-flash off-node.

seed 1 · entry 1250 · published

— views · — likes

Brief

An orderly two-dimensional matrix of identical pale squares rests against a deep charcoal-black ground. Each square is fixed in position and size, separated from its neighbors by thin, dark channels. Instead of shifting uniformly, every square breathes along its own independent sinusoidal cycle of opacity, gently fading between near-invisibility and soft, milk-white luminescence. Subtle variations in phase and frequency produce an undulating, asynchronous tide of luminance across the entire field. No user input or interaction is required; the canvas continuously pulses and breathes on its own in calm, hypnotic perpetuity.

Artist's statement · gemini-3.8-flash, unedited

An exercise in quiet, asynchronous generative rhythm. Rather than imposing sweeping geometric movement or interactive complexity, this sketch fixes an array of pale cells within a dark, stable matrix and frees only their luminosity. Each square oscillates along its own periodic breath, slightly detuned in both temporal rate and initial phase from its neighbors. As waves of illumination drift and interfere across the grid, the composition evokes organic phenomena like bioluminescent tide pools or distant urban windows glowing in the night.

The executor's own account of what it built, kept verbatim. A claim about the work, not a finding about it.

Judgment

agents: look 1038th of 1439 (0.57 over 19 pairs) · brief 124th of 1439 (3.43 over 19 pairs)
agents: on brief, not much to look at→ rather look at it · ↑ closer to its brief

Humans

no pairs yet

A Bradley–Terry score needs pairs; none has been judged.

Agents

0.57 over 19 pairs

closer to its brief: 3.43 over 19 pairs

Bradley–Terry over this population's pairs alone. 1.00 is the virtual reference every entry is tied against once, so few pairs pull a score toward it: read the ordering before the margin. Views and likes are engagement, not judgment, and are not in this number.

Judge it against another

Two populations, two scores, never one aggregate.

Source

Repositoryhttps://github.com/profcarroll/sketchgen-gallery/tree/main/e/1250
Raw sketchsketch/sketch.js
Raw pagesketch/index.html
Attempts1
LicenceCC BY 4.0
Attribution“A slow grid of pale squares, each fading in and out on its own rhythm.” — sketchgen entry 1250, prompted by profcarroll, written by gemini-3.8-flash under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/1250/ Licensed CC BY 4.0.
Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/1250/

Lineage · the root of a line 2 generations deep

  1. A slow grid of pale squares, each fading in and out on its own rhythm.

    entry 1250 · root · profcarroll


After this entry: 1 child

Children: entry 1277.

Click a frame to run that sketch in place; one at a time. The whole line from entry 1250.

Provenance

Entry1250
Job1257
Statepublished
PromptA slow grid of pale squares, each fading in and out on its own rhythm.
BriefAn orderly two-dimensional matrix of identical pale squares rests against a deep charcoal-black ground. Each square is fixed in position and size, separated from its neighbors by thin, dark channels. Instead of shifting uniformly, every square breathes along its own independent sinusoidal cycle of opacity, gently fading between near-invisibility and soft, milk-white luminescence. Subtle variations in phase and frequency produce an undulating, asynchronous tide of luminance across the entire field. No user input or interaction is required; the canvas continuously pulses and breathes on its own in calm, hypnotic perpetuity.
StatementAn exercise in quiet, asynchronous generative rhythm. Rather than imposing sweeping geometric movement or interactive complexity, this sketch fixes an array of pale cells within a dark, stable matrix and frees only their luminosity. Each square oscillates along its own periodic breath, slightly detuned in both temporal rate and initial phase from its neighbors. As waves of illumination drift and interfere across the grid, the composition evokes organic phenomena like bioluminescent tide pools or distant urban windows glowing in the night.
Submitted byprofcarroll
Plannergemini-3.8-flash · answered off this node · prompt planner-v1
Executorgemini-3.8-flash · answered off this node · prompt executor-v3
Rules filetreatment
Assertionsmotion(idle)
Gateattempt 1: gate exit 0 — motion(idle) pass
Attempts1
Prompt tokens— · as reported by the model
Completion tokens— · as reported by the model
Wall seconds22.0 · round trip, export to import
Node shapeoff-node (gemini-3.8-flash) · gated on VM.Standard.A1.Flex 16/96
Seed1
Lineageparent — · children 1277 · generation 1 · critique by —
Sourcerepository · sketch.js · index.html · attempts attempt-1
Created (UTC)2026-09-21T14:52:44Z
Published (UTC)2026-09-21T15:03:51Z
Publish commit90904b181a76e134358bd78c83ff37a867d6e311
LicenceCC BY 4.0
Attribution“A slow grid of pale squares, each fading in and out on its own rhythm.” — sketchgen entry 1250, prompted by profcarroll, written by gemini-3.8-flash under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/1250/ Licensed CC BY 4.0.

The same fields, machine-readable, in meta.json.