a 3D marble rolls around and down a funnel, implementing collision detection, so it rolls naturally along sufaces

Revise: the same funnel-shaped channel, and this time the alternating intersecting ridges and troughs are replaced by randomly sized, asymmetrical crystalline barriers. gemma4 · generation 11 · 10 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 654 · published

— views · — likes

Brief

A smooth, polished metallic sphere rolls through a complex, geometrically designed channel. The structure is deep and funneled, formed by solid, rigid material. The movement is entirely autonomous, following the paths dictated by the channel’s changing topography. The marble navigates an intricate series of randomly sized, asymmetrical crystalline barriers, which force the sphere into sudden, visible lateral deviations while it rolls toward the exit.

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

This sketch depicts a metallic sphere rolling autonomously through a complex, geometric channel structure. The sphere navigates an intricate path formed by a series of funneled walls and randomly positioned crystalline barriers. Using physics-based movement with gravity and collision detection, the sphere responds dynamically to the channel's topography and the asymmetrical obstacles. The scene rotates slowly to show the three-dimensional complexity of the environment, while the sphere's motion demonstrates how it bounces and changes direction upon contact with various structural elements. The visual design emphasizes the interplay between smooth geometric forms and abrupt lateral deviations caused by the random placement of barriers.

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

Judgment

agents: neither→ rather look at it · ↑ closer to its brief

Humans

no pairs yet

A Bradley–Terry score needs pairs; none has been judged.

Agents

0.26 over 38 pairs

closer to its brief: 0.70 over 38 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

Repository	https://github.com/profcarroll/sketchgen-gallery/tree/main/e/654
Raw sketch	sketch/sketch.js
Raw page	sketch/index.html
Attempts	3
Licence	CC BY 4.0
Attribution	“a 3D marble rolls around and down a funnel, implementing collision de…” — sketchgen entry 654, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/654/ Licensed CC BY 4.0.

Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/654/

Lineage · generation 11 of 13 in the line from entry 127

a 3D marble rolls around and down a funnel, implementing collision detection, so it rolls naturally along sufaces
entry 127 · root · profcarroll
8 generations folded · 178, 179, 231, 278, 319, 349, 354, 410 · by gemma4 and profcarroll
1. Revise: the same funnel-shaped container, and this time the marble rolls along a tilted, non-vertical slope at the base.
  entry 178 · generation 1 · gemma4
2. Revise: improve the camera perspective and collision detection
  entry 179 · generation 2 · profcarroll
3. Revise: the same funnel-shaped channel, and this time the marble rolls along a diagonal slope at the base
  entry 231 · generation 3 · gemma4
4. Revise: the same funnel-shaped channel, and this time the diagonal slope gradually curves inward toward the exit.
  entry 278 · generation 4 · gemma4
5. Revise: the same funnel-shaped channel, and this time the diagonal slope widens and flattens into a collecting basin at the exit.
  entry 319 · generation 5 · gemma4
6. Revise: The same funnel-shaped container, and this time the initial diagonal slope features more dramatic and visible curvature changes.
  entry 349 · generation 6 · gemma4
7. Revise: the same funnel-shaped channel, and this time the shallow basin widens and deepens significantly at the exit.
  entry 354 · generation 7 · gemma4
8. Revise: the same complex, funnel-shaped channel, and this time the initial slope features abrupt shifts in curvature and requires a momentary pause.
  entry 410 · generation 8 · gemma4
Revise: the same complex, solid, funnel-shaped channel, and this time the structure incorporates small, alternating intersecting ridges and troughs forcing the marble into constant, minute course corrections.
entry 461 · generation 9 · gemma4
Revise: the same funnel-shaped channel, and this time the alternating intersecting ridges and troughs force the marble into sudden, visible lateral deviations.
entry 566 · generation 10 · gemma4
Revise: the same funnel-shaped channel, and this time the alternating intersecting ridges and troughs are replaced by randomly sized, asymmetrical crystalline barriers.
entry 654 · generation 11 · gemma4

After this entry: 1 child

Children: entry 717.

Click a frame to run that sketch in place; one at a time. The whole line from entry 127.

Critique this sketch

Provenance

Entry	654
Job	655
State	published
Prompt	a 3D marble rolls around and down a funnel, implementing collision detection, so it rolls naturally along sufaces Revise: the same funnel-shaped container, and this time the marble rolls along a tilted, non-vertical slope at the base. Revise: improve the camera perspective and collision detection Revise: the same funnel-shaped channel, and this time the marble rolls along a diagonal slope at the base Revise: the same funnel-shaped channel, and this time the diagonal slope gradually curves inward toward the exit. Revise: the same funnel-shaped channel, and this time the diagonal slope widens and flattens into a collecting basin at the exit. Revise: The same funnel-shaped container, and this time the initial diagonal slope features more dramatic and visible curvature changes. Revise: the same funnel-shaped channel, and this time the shallow basin widens and deepens significantly at the exit. Revise: the same complex, funnel-shaped channel, and this time the initial slope features abrupt shifts in curvature and requires a momentary pause. Revise: the same complex, solid, funnel-shaped channel, and this time the structure incorporates small, alternating intersecting ridges and troughs forcing the marble into constant, minute course corrections. Revise: the same funnel-shaped channel, and this time the alternating intersecting ridges and troughs force the marble into sudden, visible lateral deviations. Revise: the same funnel-shaped channel, and this time the alternating intersecting ridges and troughs are replaced by randomly sized, asymmetrical crystalline barriers.
Brief	A smooth, polished metallic sphere rolls through a complex, geometrically designed channel. The structure is deep and funneled, formed by solid, rigid material. The movement is entirely autonomous, following the paths dictated by the channel’s changing topography. The marble navigates an intricate series of randomly sized, asymmetrical crystalline barriers, which force the sphere into sudden, visible lateral deviations while it rolls toward the exit.
Statement	This sketch depicts a metallic sphere rolling autonomously through a complex, geometric channel structure. The sphere navigates an intricate path formed by a series of funneled walls and randomly positioned crystalline barriers. Using physics-based movement with gravity and collision detection, the sphere responds dynamically to the channel's topography and the asymmetrical obstacles. The scene rotates slowly to show the three-dimensional complexity of the environment, while the sphere's motion demonstrates how it bounces and changes direction upon contact with various structural elements. The visual design emphasizes the interplay between smooth geometric forms and abrupt lateral deviations caused by the random placement of barriers.
Submitted by	profcarroll
Planner	gemma4:e4b · prompt planner-v1
Executor	qwen3-coder:30b-a3b-q4_K_M · prompt executor-v2
Rules file	control
Assertions	uses(webgl), motion(idle)
Gate	attempt 1: gate exit 1 — motion(idle) fail, uses(webgl) pass attempt 2: gate exit 1 — motion(idle) fail, uses(webgl) pass attempt 3: gate exit 0 — motion(idle) pass, uses(webgl) pass
Attempts	3
Prompt tokens	5203
Completion tokens	2757
Wall seconds	197.871
Node shape	VM.Standard.A1.Flex 16/94
Seed	1
Lineage	parent 566 · children 717 · generation 11 · critique by gemma4:e4b
Source	repository · sketch.js · index.html · attempts attempt-1, attempt-2, attempt-3
Created (UTC)	2026-09-17T11:29:52Z
Published (UTC)	2026-09-17T13:52:15Z
Publish commit	09f916760a32f88a743879e69861c976abf3a625
Licence	CC BY 4.0
Attribution	“a 3D marble rolls around and down a funnel, implementing collision de…” — sketchgen entry 654, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/654/ Licensed CC BY 4.0.

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