a fun cursor follow toy
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. gemma4 · generation 5 · 4 earlier revisions in the lineage below
OFF-PLAN — this sketch runs. It differs from the plan the planner wrote for it.
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Brief
When the mouse moves across the canvas, it generates a dynamic wake of shimmering particles. These particles instantly trail the cursor, appearing in vivid form before dissipating. As they fade into the background, they leave behind a faint, smoky, and transparent afterglow. This soft residue persists longer than the actual particles, creating an ethereal, visibly dissipating trail that follows and reflects the entire path of the cursor’s movement.
Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited
This sketch creates a dynamic particle trail that follows the mouse cursor as it moves across the canvas. The particles appear vividly at the cursor's position and then gradually fade out while shrinking, leaving behind a lingering afterglow effect. The system maintains a fixed maximum number of particles to ensure smooth performance, with each particle having its own fading and scaling behavior. The result is an ethereal, dissipating trail that reflects the entire path of mouse movement, creating a visually pleasing and responsive interactive experience.
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
0.84 over 11 pairs
closer to its brief: 0.44 over 11 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/864 |
|---|---|
| Raw sketch | sketch/sketch.js |
| Raw page | sketch/index.html |
| Attempts | 3 |
| Licence | CC BY 4.0 |
| Attribution | “a fun cursor follow toy Revise: the same particle system, and this ti…” — sketchgen entry 864, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/864/ Licensed CC BY 4.0. |
Lineage · generation 5 of 11 in the line from entry 543
a fun cursor follow toy
2 generations folded · 634, 708 · 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.
After this entry: 1 child
Children: entry 880.
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: …
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 | 864 |
|---|---|
| Job | 865 |
| 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. |
| Brief | When the mouse moves across the canvas, it generates a dynamic wake of shimmering particles. These particles instantly trail the cursor, appearing in vivid form before dissipating. As they fade into the background, they leave behind a faint, smoky, and transparent afterglow. This soft residue persists longer than the actual particles, creating an ethereal, visibly dissipating trail that follows and reflects the entire path of the cursor’s movement. |
| Statement | This sketch creates a dynamic particle trail that follows the mouse cursor as it moves across the canvas. The particles appear vividly at the cursor's position and then gradually fade out while shrinking, leaving behind a lingering afterglow effect. The system maintains a fixed maximum number of particles to ensure smooth performance, with each particle having its own fading and scaling behavior. The result is an ethereal, dissipating trail that reflects the entire path of mouse movement, creating a visually pleasing and responsive interactive experience. |
| Submitted by | profcarroll |
| Planner | gemma4:e4b · prompt planner-v1 |
| Executor | qwen3-coder:30b-a3b-q4_K_M · prompt executor-v2 |
| Rules file | treatment |
| Assertions | motion(idle), responds(drag) |
| Gate | attempt 1: gate exit 1 — motion(idle) fail, responds(drag) pass attempt 2: gate exit 1 — motion(idle) fail, responds(drag) pass attempt 3: gate exit 1 — motion(idle) fail, responds(drag) pass |
| Attempts | 3 |
| Prompt tokens | 6855 |
| Completion tokens | 1953 |
| Wall seconds | 121.506 |
| Node shape | VM.Standard.A1.Flex 16/94 |
| Seed | 1 |
| Lineage | parent 814 · children 880 · generation 5 · critique by gemma4:e4b |
| Source | repository · sketch.js · index.html · attempts attempt-1, attempt-2, attempt-3 |
| Created (UTC) | 2026-09-18T10:36:12Z |
| Published (UTC) | 2026-09-18T14:52:44Z |
| Publish commit | 6aa0d8b23f131a0cc2ef33d3647ed03b975a6a70 |
| Licence | CC BY 4.0 |
| Attribution | “a fun cursor follow toy Revise: the same particle system, and this ti…” — sketchgen entry 864, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/864/ Licensed CC BY 4.0. |
The same fields, machine-readable, in meta.json.