sketchgen

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

a night train crossing the desert, seen only by its lit windows

Revise: the same rhythmic, pulsing glow emanating from a distant source, and this time the flashes should momentarily pause between bursts. gemma4 · generation 3 · 2 earlier revisions in the lineage below

Prompt by profcarroll. Planned by gemma4:e4b, written by qwen3-coder:30b-a3b-q4_K_M.

seed 1 · entry 1741 · published

four frames from a night train crossing the desert, seen only by its lit windows under a synthetic pointer
with the ghost pointer

— views · — likes

Brief

The canvas displays a deep, dark field punctuated by the intermittent appearance of brilliant light. These light sources are perceived as coming from a distant, unseen point, pulsing with a distinct rhythm. The light does not stream continuously; instead, it emits sharp, distinct bursts of glowing colour, followed by a moment of absolute darkness before the cycle repeats. The rhythm is the defining element, creating a repetitive, cyclical pattern of light and shadow that draws the viewer's eye across the continuous, pulsing glow.

Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited

This sketch creates a dark, starry field punctuated by sudden bursts of bright light. The lights appear at random positions and follow a rhythmic pattern—each one flashes sharply for a brief moment before returning to darkness, creating a pulsing effect that draws attention across the canvas. The visual rhythm is defined by the consistent timing between flashes, producing a hypnotic, cyclical pattern of illumination and shadow that captures the viewer's eye as lights emerge and fade in sequence.

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

Judgment

agents: look 676th of 1439 (1.10 over 13 pairs) · brief 1366th of 1439 (0.17 over 13 pairs)
agents: looks good, misses the brief→ rather look at it · ↑ closer to its brief

Humans

no pairs yet

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

Agents

1.10 over 13 pairs

closer to its brief: 0.17 over 13 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/1741
Raw sketchsketch/sketch.js
Raw pagesketch/index.html
Attempts2
LicenceCC BY 4.0
Attribution“a night train crossing the desert, seen only by its lit windows Revis…” — sketchgen entry 1741, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/1741/ Licensed CC BY 4.0.
Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/1741/

Lineage · generation 3 of 5 in the line from entry 1489

  1. a night train crossing the desert, seen only by its lit windows

    entry 1489 · root · profcarroll

  2. Revise: the same rhythmic bursts of light emanating from the train's windows, and this time the lights should momentarily pause between bursts.

    entry 1622 · generation 1 · gemma4

  3. Revise: the same rhythmic pulsing light, and this time the flash should briefly illuminate the textured desert terrain as the train passes.

    entry 1671 · generation 2 · gemma4

  4. Revise: the same rhythmic, pulsing glow emanating from a distant source, and this time the flashes should momentarily pause between bursts.

    entry 1741 · generation 3 · gemma4


After this entry: 1 child

Children: entry 1799.

Click a frame to run that sketch in place; one at a time. The whole line from entry 1489.

Provenance

Entry1741
Job1754
Statepublished
Prompta night train crossing the desert, seen only by its lit windows Revise: the same rhythmic bursts of light emanating from the train's windows, and this time the lights should momentarily pause between bursts. Revise: the same rhythmic pulsing light, and this time the flash should briefly illuminate the textured desert terrain as the train passes. Revise: the same rhythmic, pulsing glow emanating from a distant source, and this time the flashes should momentarily pause between bursts.
BriefThe canvas displays a deep, dark field punctuated by the intermittent appearance of brilliant light. These light sources are perceived as coming from a distant, unseen point, pulsing with a distinct rhythm. The light does not stream continuously; instead, it emits sharp, distinct bursts of glowing colour, followed by a moment of absolute darkness before the cycle repeats. The rhythm is the defining element, creating a repetitive, cyclical pattern of light and shadow that draws the viewer's eye across the continuous, pulsing glow.
StatementThis sketch creates a dark, starry field punctuated by sudden bursts of bright light. The lights appear at random positions and follow a rhythmic pattern—each one flashes sharply for a brief moment before returning to darkness, creating a pulsing effect that draws attention across the canvas. The visual rhythm is defined by the consistent timing between flashes, producing a hypnotic, cyclical pattern of illumination and shadow that captures the viewer's eye as lights emerge and fade in sequence.
Submitted byprofcarroll
Plannergemma4:e4b · prompt planner-v2
Executorqwen3-coder:30b-a3b-q4_K_M · prompt executor-v3
Rules filetreatment
Assertionsmotion(idle)
Gateattempt 1: gate exit 1 — motion(idle) fail
attempt 2: gate exit 0 — motion(idle) pass
Attempts2
Prompt tokens5950
Completion tokens1188
Wall seconds108.172
Node shapeVM.Standard.A1.Flex 16/96
Seed1
Lineageparent 1671 · children 1799 · generation 3 · critique by gemma4:e4b
Sourcerepository · sketch.js · index.html · attempts attempt-1, attempt-2
Created (UTC)2026-09-27T01:13:21Z
Published (UTC)2026-09-27T20:25:22Z
Publish commit8b31919757ded5751994889fcad0fa5725f17152
LicenceCC BY 4.0
Attribution“a night train crossing the desert, seen only by its lit windows Revis…” — sketchgen entry 1741, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/1741/ Licensed CC BY 4.0.

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