Add inference dataset documentation

README.md

@@ -160,6 +160,29 @@ For the official iWorldBench evaluation workflow, please refer to the main code
 - [Leaderboard](https://huggingface.co/spaces/EmbodiedCity/iWorld-Bench)
 - [Metric documentation](https://github.com/EmbodiedCity/iWorld-Bench/blob/main/README_metrics.md)
 
+## Inference Dataset (`dataset/all_pack`)
+
+The `dataset/all_pack` directory contains the packaged inference data for running iWorld-Bench evaluations. It includes:
+
+| File / Directory | Description |
+|---|---|
+| `assets/` | First-frame images organized by source dataset and task (Diff/Mem). |
+| `metadata.csv` | Main metadata for Diff and Memory tasks, with sample IDs, dataset names, file paths, control types, and difficulty levels. |
+| `camera_following_metadata.csv` | Metadata for the Camera-Following task. |
+| `videoxfun_diff.csv` | VideoX-Fun-compatible Diff inference CSV. |
+
+**This dataset is designed for inference**: use it together with the evaluation code in the [main repository](https://github.com/EmbodiedCity/iWorld-Bench) to generate videos with your model and then run the iWorld-Bench evaluation pipeline.
+
+To download and use this dataset for inference:
+
+```bash
+# Install huggingface_hub if needed
+pip install huggingface_hub
+
+# Download the dataset
+huggingface-cli download EmbodiedCity/iWorld-Bench-Dataset --repo-type dataset --local-dir iWorld-Bench-Dataset
+```
+
 ## Citation
 
 If you use this dataset, please cite the iWorld-Bench paper: