a fun cursor follow toy
Revise: the same faint, residual line of deep ink, and this time it should slowly accumulate into concentrated clusters of high contrast color along the path of travel. gemma4 · generation 8 · 7 earlier revisions in the lineage below
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Brief
As the cursor moves across the canvas, it generates a visible, deep ink trail that defines its path. Instead of dissipating, this trail is dynamic and persistent; it slowly accumulates, allowing the faint initial lines to intensify over time. The ink subtly concentrates and deepens, eventually forming defined clusters of high-contrast color. The appearance and structure of the colored clusters are directly dependent on the continuous movement of the cursor, making the user's drawing actions visible as lasting, rich patterns.
Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited
This sketch creates a persistent ink trail that responds to mouse movement, with each stroke building up a dynamic layer of color and intensity. The visual effect emerges from the accumulation of semi-transparent black points that fade over time, creating clusters where the cursor has lingered. As the drawing continues, these clusters become more defined and concentrated, forming a rich pattern that reflects the user's motion through the canvas. The system uses a simple but effective technique of maintaining an array of trail points, updating their ages each frame, and rendering them with opacity that decreases over time. This approach creates a visually compelling result that balances persistence with natural fading, producing an organic feeling of accumulation and decay in the ink patterns.
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
A Bradley–Terry score needs pairs; none has been judged.
Agents
0.59 over 23 pairs
closer to its brief: 0.66 over 23 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/983 |
|---|---|
| Raw sketch | sketch/sketch.js |
| Raw page | sketch/index.html |
| Attempts | 1 |
| Licence | CC BY 4.0 |
| Attribution | “a fun cursor follow toy Revise: the same particle system, and this ti…” — sketchgen entry 983, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/983/ Licensed CC BY 4.0. |
Lineage · generation 8 of 11 in the line from entry 543
a fun cursor follow toy
5 generations folded · 634, 708, 752, 814, 864 · all by gemma4
Revise: the same particle system, and this time the particles organize into a visible, dissipating wake directly trailing the cursor.
Revise: the same particle system, and this time the particles change color from a bright primary hue at the cursor to a soft pastel shade before fully fading.
Revise: the same dynamic and ephemeral wake of particles, and this time the particles grow noticeably larger in size from the moment of creation until they fully fade away.
Revise: the same dynamic, dissipating trail of particles, and this time the particles momentarily form a noticeable ring shape upon reaching peak size.
Revise: the same visible, dynamic wake of dissipating particles, and this time the particles leave behind a smoky, transparent afterglow that fades slightly slower than the particles themselves.
Revise: animate the background so that the cursor toy interacts with it as it moves
Revise: the same dynamic, ephemeral trail of particles, and this time they briefly leave a faint, residual line of ink on the canvas where they passed.
Revise: the same faint, residual line of deep ink, and this time it should slowly accumulate into concentrated clusters of high contrast color along the path of travel.
After this entry: 1 child
Children: entry 1020.
Click a frame to run that sketch in place; one at a time. The whole line from entry 543.
Critique this sketch
Sign in with GitHub to ask for a revision. One sentence becomes the next generation's prompt.
One sentence, under 40 words, no code.
a fun cursor follow toy
Revise: the same particle system, and this time the particles organize into a visible, dissipating wake directly trailing the cursor.
Revise: the same particle system, and this time the particles change color from a bright primary hue at the cursor to a soft pastel shade before fully fading.
Revise: the same dynamic and ephemeral wake of particles, and this time the particles grow noticeably larger in size from the moment of creation until they fully fade away.
Revise: the same dynamic, dissipating trail of particles, and this time the particles momentarily form a noticeable ring shape upon reaching peak size.
Revise: the same visible, dynamic wake of dissipating particles, and this time the particles leave behind a smoky, transparent afterglow that fades slightly slower than the particles themselves.
Revise: animate the background so that the cursor toy interacts with it as it moves
Revise: the same dynamic, ephemeral trail of particles, and this time they briefly leave a faint, residual line of ink on the canvas where they passed.
Revise: the same faint, residual line of deep ink, and this time it should slowly accumulate into concentrated clusters of high contrast color along the path of travel.
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 | 983 |
|---|---|
| Job | 985 |
| State | published |
| Prompt | a fun cursor follow toy Revise: the same particle system, and this time the particles organize into a visible, dissipating wake directly trailing the cursor. Revise: the same particle system, and this time the particles change color from a bright primary hue at the cursor to a soft pastel shade before fully fading. Revise: the same dynamic and ephemeral wake of particles, and this time the particles grow noticeably larger in size from the moment of creation until they fully fade away. Revise: the same dynamic, dissipating trail of particles, and this time the particles momentarily form a noticeable ring shape upon reaching peak size. Revise: the same visible, dynamic wake of dissipating particles, and this time the particles leave behind a smoky, transparent afterglow that fades slightly slower than the particles themselves. Revise: animate the background so that the cursor toy interacts with it as it moves Revise: the same dynamic, ephemeral trail of particles, and this time they briefly leave a faint, residual line of ink on the canvas where they passed. Revise: the same faint, residual line of deep ink, and this time it should slowly accumulate into concentrated clusters of high contrast color along the path of travel. |
| Brief | As the cursor moves across the canvas, it generates a visible, deep ink trail that defines its path. Instead of dissipating, this trail is dynamic and persistent; it slowly accumulates, allowing the faint initial lines to intensify over time. The ink subtly concentrates and deepens, eventually forming defined clusters of high-contrast color. The appearance and structure of the colored clusters are directly dependent on the continuous movement of the cursor, making the user's drawing actions visible as lasting, rich patterns. |
| Statement | This sketch creates a persistent ink trail that responds to mouse movement, with each stroke building up a dynamic layer of color and intensity. The visual effect emerges from the accumulation of semi-transparent black points that fade over time, creating clusters where the cursor has lingered. As the drawing continues, these clusters become more defined and concentrated, forming a rich pattern that reflects the user's motion through the canvas. The system uses a simple but effective technique of maintaining an array of trail points, updating their ages each frame, and rendering them with opacity that decreases over time. This approach creates a visually compelling result that balances persistence with natural fading, producing an organic feeling of accumulation and decay in the ink patterns. |
| Submitted by | profcarroll |
| Planner | gemma4:e4b · prompt planner-v1 |
| Executor | qwen3-coder:30b-a3b-q4_K_M · prompt executor-v3 |
| Rules file | treatment |
| Assertions | responds(drag), no_motion |
| Gate | attempt 1: gate exit 0 — no_motion pass, responds(drag) pass |
| Attempts | 1 |
| Prompt tokens | 2395 |
| Completion tokens | 495 |
| Wall seconds | 40.444 |
| Node shape | VM.Standard.A1.Flex 16/94 |
| Seed | 1 |
| Lineage | parent 938 · children 1020 · generation 8 · critique by gemma4:e4b |
| Source | repository · sketch.js · index.html · attempts attempt-1 |
| Created (UTC) | 2026-09-19T05:36:56Z |
| Published (UTC) | 2026-09-19T14:19:10Z |
| Publish commit | 80748d89fa024f4e09c3484ecc347845787f2007 |
| Licence | CC BY 4.0 |
| Attribution | “a fun cursor follow toy Revise: the same particle system, and this ti…” — sketchgen entry 983, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/983/ Licensed CC BY 4.0. |
The same fields, machine-readable, in meta.json.