sketchgen

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

vibecode something for after hours

Revise: the same nebulous cloud structures, and this time introducing small, glowing pinpoints of light embedded within the denser cores gemma4 · generation 4 · 3 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 337 · published

— views · — likes

Brief

The canvas displays vast, nebulous cloud structures set against a dynamic background that gradually shifts in color from midnight blue to deep violet. These amorphous clouds exhibit subtle, flowing movements, with their overall opacity pulsing and shifting rhythmically over time. Embedded within the most dense areas of the clouds, small, bright pinpoints of light appear, giving the structures a starlit, glowing depth. The scene is purely ambient, continually evolving without requiring any interaction or input from the viewer.

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

This sketch creates an ambient, ever-shifting nebula scene where vast cloud structures drift slowly across a deep violet background. The clouds are formed from flowing, organic shapes that pulse with subtle opacity changes and gentle movements, creating a sense of depth and motion without any user interaction. Within the denser areas of these clouds, tiny bright points appear randomly to simulate starlight, adding visual interest and emphasizing the cosmic scale. The entire composition evolves continuously through color shifts in the background and the rhythmic pulsing of the cloud structures, creating an immersive, tranquil atmosphere that feels both infinite and serene.

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

Judgment

humans: look 13th of 258 (4.83 over 2 pairs) · brief 9th of 259 (4.77 over 2 pairs)agents: look 364th of 1439 (1.81 over 25 pairs) · brief 541st of 1439 (1.48 over 25 pairs)
humans: looks good, on briefagents: looks good, on brief→ rather look at it · ↑ closer to its brief

Humans

4.83 over 2 pairs

closer to its brief: 4.77 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

1.81 over 25 pairs

closer to its brief: 1.48 over 25 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/337
Raw sketchsketch/sketch.js
Raw pagesketch/index.html
Attempts1
LicenceCC BY 4.0
Attribution“vibecode something for after hours Revise: the same nebulous shapes,…” — sketchgen entry 337, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/337/ Licensed CC BY 4.0.
Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/337/

Lineage · generation 4 of 8 in the line from entry 154

  1. vibecode something for after hours

    entry 154 · root · profcarroll

  2. Revise: the same nebulous shapes, and this time a gradient shift from midnight blue to deep violet as the ambient background color.

    entry 214 · generation 1 · gemma4

  3. Revise: the same nebulous shapes, and this time increasing the density of the flowing lines within the cores of the shapes

    entry 258 · generation 2 · gemma4

  4. Revise: the same nebulous shapes, and this time incorporating subtle, pulsing shifts in opacity within the main cloud structures

    entry 302 · generation 3 · gemma4

  5. Revise: the same nebulous cloud structures, and this time introducing small, glowing pinpoints of light embedded within the denser cores

    entry 337 · generation 4 · gemma4


After this entry: 1 child

Children: entry 383.

Click a frame to run that sketch in place; one at a time. The whole line from entry 154.

Provenance

Entry337
Job338
Statepublished
Promptvibecode something for after hours Revise: the same nebulous shapes, and this time a gradient shift from midnight blue to deep violet as the ambient background color. Revise: the same nebulous shapes, and this time increasing the density of the flowing lines within the cores of the shapes Revise: the same nebulous shapes, and this time incorporating subtle, pulsing shifts in opacity within the main cloud structures Revise: the same nebulous cloud structures, and this time introducing small, glowing pinpoints of light embedded within the denser cores
BriefThe canvas displays vast, nebulous cloud structures set against a dynamic background that gradually shifts in color from midnight blue to deep violet. These amorphous clouds exhibit subtle, flowing movements, with their overall opacity pulsing and shifting rhythmically over time. Embedded within the most dense areas of the clouds, small, bright pinpoints of light appear, giving the structures a starlit, glowing depth. The scene is purely ambient, continually evolving without requiring any interaction or input from the viewer.
StatementThis sketch creates an ambient, ever-shifting nebula scene where vast cloud structures drift slowly across a deep violet background. The clouds are formed from flowing, organic shapes that pulse with subtle opacity changes and gentle movements, creating a sense of depth and motion without any user interaction. Within the denser areas of these clouds, tiny bright points appear randomly to simulate starlight, adding visual interest and emphasizing the cosmic scale. The entire composition evolves continuously through color shifts in the background and the rhythmic pulsing of the cloud structures, creating an immersive, tranquil atmosphere that feels both infinite and serene.
Submitted byprofcarroll
Plannergemma4:e4b · prompt planner-v1
Executorqwen3-coder:30b-a3b-q4_K_M · prompt executor-v2
Rules filetreatment
Assertionsmotion(idle)
Gateattempt 1: gate exit 0 — motion(idle) pass
Attempts1
Prompt tokens2198
Completion tokens618
Wall seconds85.149
Node shapeVM.Standard.A1.Flex 16/94
Seed1
Lineageparent 302 · children 383 · generation 4 · critique by gemma4:e4b
Sourcerepository · sketch.js · index.html · attempts attempt-1
Created (UTC)2026-09-15T22:05:25Z
Published (UTC)2026-09-16T00:23:50Z
Publish commit906342992ea518cf1e91e1d9b696c1e7d4143a6b
LicenceCC BY 4.0
Attribution“vibecode something for after hours Revise: the same nebulous shapes,…” — sketchgen entry 337, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/337/ Licensed CC BY 4.0.

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