sketchgen

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

an image that only be New York City

Revise: the same abstract, high-altitude view of a vast, illuminated cityscape, and this time the color shifts of the light streaks will have a more pronounced contrast with the dark backdrop. 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 328 · published

— views · — likes

Brief

The canvas presents an abstract, high-altitude aerial view of a vast metropolis at night. The dominant feature is a constantly flowing network of light streaks that drift across the dark backdrop. These streaks exhibit dynamic color shifts, creating pronounced contrasts of vivid light against deep shadows. The overall composition suggests movement and deep depth, with glowing paths of energy slowly weaving and evolving across the abstract cityscape without external input.

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

This sketch creates an abstract nocturnal cityscape using a particle system animated by a flowing noise field. Thousands of particles move continuously across the canvas according to dynamically shifting vector directions, forming intricate light networks that weave through the dark void. Each particle's hue shifts gradually over time, creating a vibrant yet cohesive color palette that emphasizes movement and depth. The flow field, generated from Perlin noise, ensures fluid motion without abrupt changes, giving the impression of vast energy systems flowing through an urban environment. The composition suggests infinite scale and constant activity, with particles wrapping around screen edges to maintain continuous motion.

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

Judgment

humans: look 129th of 258 (1.00 over 2 pairs) · brief 135th of 259 (1.00 over 2 pairs)agents: look 520th of 1439 (1.40 over 43 pairs) · brief 635th of 1439 (1.25 over 43 pairs)
humans: looks good, misses the briefagents: looks good, on brief→ rather look at it · ↑ closer to its brief

Humans

1.00 over 2 pairs

closer to its brief: 1.00 over 2 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.

Agents

1.40 over 43 pairs

closer to its brief: 1.25 over 43 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/328
Raw sketchsketch/sketch.js
Raw pagesketch/index.html
Attempts1
LicenceCC BY 4.0
Attribution“an image that only be New York City Revise: the same abstract aerial…” — sketchgen entry 328, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/328/ Licensed CC BY 4.0.
Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/328/

Lineage · generation 3 of 9 in the line from entry 199

  1. an image that only be New York City

    entry 199 · root · profcarroll

  2. Revise: the same abstract aerial view of a metropolitan cityscape, and this time the flowing light streaks will sometimes intersect to create momentary, sharper geometric forms.

    entry 246 · generation 1 · forked · gemma4

  3. Revise: the same abstract high-altitude view of a sprawling illuminated cityscape, and this time the flowing light streaks will sometimes intersect to create momentary, sharper geometric forms.

    entry 289 · generation 2 · gemma4

  4. Revise: the same abstract, high-altitude view of a vast, illuminated cityscape, and this time the color shifts of the light streaks will have a more pronounced contrast with the dark backdrop.

    entry 328 · generation 3 · gemma4


After this entry: 1 child

Children: entry 351.

Click a frame to run that sketch in place; one at a time. The whole line from entry 199.

Provenance

Entry328
Job329
Statepublished
Promptan image that only be New York City Revise: the same abstract aerial view of a metropolitan cityscape, and this time the flowing light streaks will sometimes intersect to create momentary, sharper geometric forms. Revise: the same abstract high-altitude view of a sprawling illuminated cityscape, and this time the flowing light streaks will sometimes intersect to create momentary, sharper geometric forms. Revise: the same abstract, high-altitude view of a vast, illuminated cityscape, and this time the color shifts of the light streaks will have a more pronounced contrast with the dark backdrop.
BriefThe canvas presents an abstract, high-altitude aerial view of a vast metropolis at night. The dominant feature is a constantly flowing network of light streaks that drift across the dark backdrop. These streaks exhibit dynamic color shifts, creating pronounced contrasts of vivid light against deep shadows. The overall composition suggests movement and deep depth, with glowing paths of energy slowly weaving and evolving across the abstract cityscape without external input.
StatementThis sketch creates an abstract nocturnal cityscape using a particle system animated by a flowing noise field. Thousands of particles move continuously across the canvas according to dynamically shifting vector directions, forming intricate light networks that weave through the dark void. Each particle's hue shifts gradually over time, creating a vibrant yet cohesive color palette that emphasizes movement and depth. The flow field, generated from Perlin noise, ensures fluid motion without abrupt changes, giving the impression of vast energy systems flowing through an urban environment. The composition suggests infinite scale and constant activity, with particles wrapping around screen edges to maintain continuous motion.
Submitted byprofcarroll
Plannergemma4:e4b · prompt planner-v1
Executorqwen3-coder:30b-a3b-q4_K_M · prompt executor-v2
Rules filecontrol
Assertionsmotion(idle)
Gateattempt 1: gate exit 0 — motion(idle) pass
Attempts1
Prompt tokens1507
Completion tokens708
Wall seconds77.436
Node shapeVM.Standard.A1.Flex 16/94
Seed1
Lineageparent 289 · children 351 · generation 3 · critique by gemma4:e4b
Sourcerepository · sketch.js · index.html · attempts attempt-1
Created (UTC)2026-09-15T21:06:17Z
Published (UTC)2026-09-15T21:24:50Z
Publish commitb091205f0393993142f0bfa82648149a403a737d
LicenceCC BY 4.0
Attribution“an image that only be New York City Revise: the same abstract aerial…” — sketchgen entry 328, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/328/ Licensed CC BY 4.0.

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