Align README to paper: 400 cases (243 sim + 157 real)

README.md

@@ -2,31 +2,30 @@
 license: cc-by-sa-4.0
 ---
 
-# Apple-Pi
+# Apple-Pi (Full)
 
-Full Apple-Pi benchmark: **247 simulation cases + 157 realworld cases (404 total)** for evaluating physics reasoning in image and video generation models.
+Full release of the **Apple-Pi physics benchmark**: **400 cases (243 simulation + 157 realworld)** for evaluating physics reasoning in image and video generation models.
 
 ## Folder structure
 
 ```
-apple-pi/
+apple-pi-full/
 ├── README.md
 ├── croissant.json
-├── selected_cases.json
-├── sim_subset/        # 50 simulation cases
-└── realworld_subset/  # 50 realworld cases
+├── sim_subset/         # 243 simulation cases (9 single-task families + composition)
+└── realworld_subset/   # 157 realworld cases (7 physics categories)
 ```
 
 ## Per-case contents
 
 **Simulation** (`sim_subset/<task>/<case_id>/`) — generated with **NVIDIA Isaac Sim** (rigid-body PhysX simulator):
-- `annotation.txt`, `physics_duration.txt`, `formula_info.json`
+- `annotation.txt`, `physics_duration.txt`, `formula_info.json`, `prompt.txt`
 - `initial_state/` (rgb_0000 + white-bg variants + instance segmentation + camera params)
 - `instantaneous_velocity/` (target-time velocity reference)
 - `rgb/0000.png ~ 00NN.png` (rendered video frames @ 24 fps)
 - `instance_segmentation/`, `mask/`, `velocity/`, `depth/`, `density/`, `camera_parameters/`
 
-**Realworld** (`realworld_subset/<category>/[<subcategory>/]<case_id>/`):
+**Realworld** (`realworld_subset/<category>/[<subcategory>/]<case_id>/`) — recorded under controlled laboratory conditions:
 - `annotation.txt`, `formula_info.json`, `physics_duration.txt`, `annotation_config.json`
 - `initial_state/` (first-frame extraction + variants)
 - `instance_segmentation/`, `mask/`, `instantaneous_velocity/`
@@ -34,13 +33,17 @@ apple-pi/
 
 ## Tasks
 
-**Simulation (9 tasks)**: at_rest, circular, freefall, inclined_plane, inelastic_collision, perfectly_elastic_collision, perfectly_inelastic_collision, projectile, uniform_linear.
+**Simulation (9 single-task families + composition)**: at_rest, circular, freefall, inclined_plane, inelastic_collision, perfectly_elastic_collision, perfectly_inelastic_collision, projectile, uniform_linear, composition.
 
-**Realworld (7 categories)**: NewtonsFirstLaw/AtRest, Gravity/{Freefall, Projectile}, ConservationofMomentum/{InelasticCollision, PerfectlyElasticCollision, PerfectlyInelasticCollision}, Composition.
+**Realworld (7 physics categories)**: NewtonsFirstLaw/AtRest, Gravity/{Freefall, Projectile}, ConservationofMomentum/{InelasticCollision, PerfectlyElasticCollision, PerfectlyInelasticCollision}, Composition.
 
 ## Intended use
 
-Zero-shot evaluation of physics reasoning in image- and video-generation models (perception, comprehension, generation tracks). Not intended for training.
+Zero-shot evaluation of physics reasoning in image- and video-generation models across perception, comprehension, and generation tracks. Not intended for training.
+
+## Companion repository
+
+A 100-case representative sample (50 simulation + 50 realworld) is also released for quick inspection at `AnonymousSubmitt/apple-pi`.
 
 ## License