---
license: mit
task_categories:
  - other
tags:
  - physics
  - simulation
  - rigid-body
  - icml2026
size_categories:
  - 1M<n<10M
---

# PhysicsScenes

Anonymous submission for ICML 2026: **"PhysicsLM: Autoregressive Language Modeling of 2D Rigid Body Dynamics"**

## Dataset Description

900K 2D rigid-body physics scenes generated with Pymunk (Chipmunk2D), across
30 scenario types in 6 physical categories.

### Statistics

| Split | Scenes | Scenario types | Seeds |
|-------|--------|----------------|-------|
| Train | 900,000 | 24 (seen) | 1,000,000+ |
| Val | 100,020 | 30 (all) | 5,000,000+ |
| OOD (val) | 20,004 | 6 (held-out) | 5,000,000+ |

**Total size**: ~582 GB uncompressed. Due to size, this repository contains
metadata and a 1,000-scene sample. Full dataset available on request.

### Format

Each scene is a JSONL file with 1 header line + 200 frame lines:
```
{"type": "header", "scenario": "billiards", "difficulty": 2, ...}
{"type": "frame", "frame": 0, "objects": [{"id": 0, "position": {"x": 400.0, "y": 300.0}, "velocity": {"x": -100.0, "y": 0.0}, ...}], ...}
...
```

### Scenario categories

- **Collision** (5 types): billiards, bowling, head_on, explosion, projectile
- **Stacking** (5 types): pyramid, tower, jenga, dominos, bridge
- **Ramp** (5 types): ramp_roll, ski_jump, marble_run, avalanche, plinko
- **Constraint** (5 types): pendulum, chain, seesaw, wrecking_ball, orbit
- **Minigame** (5 types): basketball, conveyor, pong, wind, breakout
- **Complex** (4 types, OOD only): angry_birds, hourglass, newtons_cradle, pinball

## Model

[anonsubmiticml2026/PhysicsLM](https://huggingface.co/anonsubmiticml2026/PhysicsLM)

## Code

[anonsubmiticml2026/physics-llm-paper](https://huggingface.co/anonsubmiticml2026/physics-llm-paper)