Scene
Nested rings
Several concentric rings spinning in alternating directions, each with its own gap. A ring falls through its gap or by wear, after a number of impacts, and every break is a visual and sonic landmark.
Open Nested rings in the editor
Parameters
The same controls as the editor, with the same range. The default is what the example page uses.
| Parameter | Range | Default |
|---|---|---|
| Rings | 2 – 6 | 4 |
| Gap | 6 – 90° | 34 |
| Angular speed | -6 – 6rad/s | 0.9 |
| Hits to break | 1 – 40 | 8 |
| Balls | 1 – 8 | 1 |
| Gravity | 0 – 40 | 12 |
| Bounciness | 0 – 1 | 0.95 |
| Initial speed | 0 – 30 | 5 |
| Growth per collision | 0 – 0.2 | 0 |
How it usually ends
Measured by the engine with the default configuration over a fixed sample of seeds. No number here is an estimate.
- Seeds in the sample
- 40
- Escapes
- 100%
- Settles
- 0%
- Times out
- 0%
- Collisions (median)
- 32
- Duration (median)
- 10.1 s
- Climax (median position)
- 37%
- The fraction of the video where event density peaks. Close to 100% means the best moment is at the end.
Seeds that end well
No seed in the sample reached the search threshold. These are still the best ones.
- seed640719score 68 out of 10027 collisions11.5 sescapeOpen seed 640719 in the editor
- seed1269093score 68 out of 10029 collisions11.7 sescapeOpen seed 1269093 in the editor
- seed1164364score 65 out of 10032 collisions11.3 sescapeOpen seed 1164364 in the editor
- seed4096776score 59 out of 10027 collisions12.8 sescapeOpen seed 4096776 in the editor
- seed2944757score 56 out of 10028 collisions11.1 sescapeOpen seed 2944757 in the editor
Watch
Videos of this scene published by the channel, each with the recipe that produced it.
One Ball, Four Rings, 40 Hits to Break Free — Simbounce
Nested rings · Sep 11, 2026
Four rings, ten hits each to break — this ball needed all forty before the last ring finally gave way. Physics simulation, no cuts, no scripting.
scene40 collisionsView the video and the recipeFive Rings, 75 Hits, One Way Out — Simbounce
Nested rings · Sep 10, 2026
A single ball had to crack five nested rings, fifteen hits each, before the last one gave way — 75 hits total, and the breakthrough came in the final stretch. Physics sim, no cuts, no scripting.
scene75 collisionsView the video and the recipeFive Nested Rings, One Escape — Simbounce
Nested rings · Sep 8, 2026
Five rings, each demanding hits before it breaks — the ball needed 75 hits total, and didn't break free until the very end. Physics sim, no cuts, no scripting.
scene75 collisionsView the video and the recipe
Frequently asked questions
How do I make a Nested rings video?
Open the scene in the editor, adjust the parameters, try a few seeds and export to MP4. Rendering happens in your browser and costs nothing.
Why does the same seed always give the same video?
The simulation is deterministic: fixed-step physics and seeded random numbers. The same seed with the same parameters reproduces the same video on any machine.
How long is a Nested rings video?
The video ends when the scene ends. The median duration measured in the sample is in the outcomes section, and the seed search shows each candidate's duration before rendering.
Can I use the video on TikTok, YouTube and Instagram?
Yes. The export is a vertical video with audio, ready for Shorts, Reels and TikTok. On the free plan it carries a discreet watermark.
How do I pick a seed that ends well?
Use the editor's seed search: it simulates dozens of variations without drawing and ranks the ones with a late climax. The seeds on this page came from the same heuristic.
Make your own variation
Open the scene in the editor with one of the seeds above, or let the search find another.
Open Nested rings in the editor