take the viewer inside a combustion engine demonstrating pistons and gearing
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft. gemma4 · generation 6 · 5 earlier revisions in the lineage below
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Brief
The canvas displays a cutaway, three-dimensional cross-section of a running combustion engine. The viewer observes the complex mechanical heart of the engine: pistons move vertically within their cylinders, transmitting force down the connecting rods. These rods articulate visibly as they transfer rotational motion to the crankshaft. The crankshaft, the central rotating component, spins dynamically, showing the precise mechanical relationship between the connecting rods and the engine's core structure as the engine cycles through its power stroke.
Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited
This sketch renders a dynamic, three-dimensional cross-section of a combustion engine using p5.js's WEBGL mode. It visualizes the mechanical relationships between key components: pistons moving vertically within cylinders, connecting rods transferring motion from pistons to a central crankshaft, and the crankshaft rotating to simulate an engine cycle. The scene is rendered with clean, geometric shapes that emphasize the precision and motion of the mechanical system. The animation runs autonomously without user input, demonstrating how forces propagate through the engine's core structure in real time.
The executor's own account of what it built, kept verbatim. A claim about the work, not a finding about it.
Judgment
Humans
no pairs yet
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Agents
0.08 over 41 pairs
closer to its brief: 0.40 over 41 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.
Two populations, two scores, never one aggregate.
Source
| Repository | https://github.com/profcarroll/sketchgen-gallery/tree/main/e/795 |
|---|---|
| Raw sketch | sketch/sketch.js |
| Raw page | sketch/index.html |
| Attempts | 1 |
| Licence | CC BY 4.0 |
| Attribution | “take the viewer inside a combustion engine demonstrating pistons and…” — sketchgen entry 795, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/795/ Licensed CC BY 4.0. |
Lineage · generation 6 of 16 in the line from entry 422
take the viewer inside a combustion engine demonstrating pistons and gearing
3 generations folded · 431, 477, 582 · by profcarroll and gemma4
Revise: we should see pistons moving up and down inside a cylinder and a spark explosion pushes the piston down which turns a transaxle connected to a gear
Revise: the same cross-section of a combustion engine's core mechanisms, and this time the connection between the pistons and the rods is more visible
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the intake and exhaust of the cylinders are visually represented with colored fluid flow.
Revise: the same dynamic, cross-sectional cutaway of a running combustion engine, and this time the intake and exhaust valves are visibly actuated and timed with the movement of the connecting rods.
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the connecting rods visibly rotating a crankshaft.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft.
After this entry: 1 child
Children: entry 846.
Click a frame to run that sketch in place; one at a time. The whole line from entry 422.
Critique this sketch
Sign in with GitHub to ask for a revision. One sentence becomes the next generation's prompt.
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take the viewer inside a combustion engine demonstrating pistons and gearing
Revise: we should see pistons moving up and down inside a cylinder and a spark explosion pushes the piston down which turns a transaxle connected to a gear
Revise: the same cross-section of a combustion engine's core mechanisms, and this time the connection between the pistons and the rods is more visible
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the intake and exhaust of the cylinders are visually represented with colored fluid flow.
Revise: the same dynamic, cross-sectional cutaway of a running combustion engine, and this time the intake and exhaust valves are visibly actuated and timed with the movement of the connecting rods.
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the connecting rods visibly rotating a crankshaft.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft.
Revise: …
Critique recorded. Queued for review.
Your username appears on the child entry as the critic, the way the critic model's name appears on this one.
…
Provenance
| Entry | 795 |
|---|---|
| Job | 796 |
| State | published |
| Prompt | take the viewer inside a combustion engine demonstrating pistons and gearing Revise: we should see pistons moving up and down inside a cylinder and a spark explosion pushes the piston down which turns a transaxle connected to a gear Revise: the same cross-section of a combustion engine's core mechanisms, and this time the connection between the pistons and the rods is more visible Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the intake and exhaust of the cylinders are visually represented with colored fluid flow. Revise: the same dynamic, cross-sectional cutaway of a running combustion engine, and this time the intake and exhaust valves are visibly actuated and timed with the movement of the connecting rods. Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the connecting rods visibly rotating a crankshaft. Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft. |
| Brief | The canvas displays a cutaway, three-dimensional cross-section of a running combustion engine. The viewer observes the complex mechanical heart of the engine: pistons move vertically within their cylinders, transmitting force down the connecting rods. These rods articulate visibly as they transfer rotational motion to the crankshaft. The crankshaft, the central rotating component, spins dynamically, showing the precise mechanical relationship between the connecting rods and the engine's core structure as the engine cycles through its power stroke. |
| Statement | This sketch renders a dynamic, three-dimensional cross-section of a combustion engine using p5.js's WEBGL mode. It visualizes the mechanical relationships between key components: pistons moving vertically within cylinders, connecting rods transferring motion from pistons to a central crankshaft, and the crankshaft rotating to simulate an engine cycle. The scene is rendered with clean, geometric shapes that emphasize the precision and motion of the mechanical system. The animation runs autonomously without user input, demonstrating how forces propagate through the engine's core structure in real time. |
| Submitted by | profcarroll |
| Planner | gemma4:e4b · prompt planner-v1 |
| Executor | qwen3-coder:30b-a3b-q4_K_M · prompt executor-v2 |
| Rules file | control |
| Assertions | motion(idle), uses(webgl) |
| Gate | attempt 1: gate exit 0 — motion(idle) pass, uses(webgl) pass |
| Attempts | 1 |
| Prompt tokens | 1542 |
| Completion tokens | 672 |
| Wall seconds | 77.927 |
| Node shape | VM.Standard.A1.Flex 16/94 |
| Seed | 1 |
| Lineage | parent 727 · children 846 · generation 6 · critique by gemma4:e4b |
| Source | repository · sketch.js · index.html · attempts attempt-1 |
| Created (UTC) | 2026-09-18T03:21:32Z |
| Published (UTC) | 2026-09-18T04:54:07Z |
| Publish commit | 656ae6e36a76979337cde2c66cd4ec8ae5383283 |
| Licence | CC BY 4.0 |
| Attribution | “take the viewer inside a combustion engine demonstrating pistons and…” — sketchgen entry 795, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/795/ Licensed CC BY 4.0. |
The same fields, machine-readable, in meta.json.