Update 3D Assets release progress to 50%

README.md

@@ -298,7 +298,7 @@ homepage: https://vlar-group.github.io/PhysInOne.html
 <a href="#release-timetable">🚀 Release Timetable</a><br>
 <a href="#dataset-repositories">📦 Repositories & Downloads</a><br>
 <a href="#data-splits">📊 Data Splits</a><br>
-<a href="#three-d-assets">🧱 Validation 3D Assets</a><br>
+<a href="#three-d-assets">🧱 3D Assets</a><br>
 <a href="#leaderboard-evaluation-data">🏆 Leaderboard Evaluation Data</a><br>
 <a href="#how-to-download">📥 How to Download</a><br>
 &nbsp;&nbsp;&nbsp;<a href="#download-scripts">1. Download Scripts</a><br>
@@ -371,7 +371,7 @@ homepage: https://vlar-group.github.io/PhysInOne.html
 | Rendered Data - Train | `██████████` 100%(122988/122988) | Released     | Last updated: Aug 21              |
 | Rendered Data - Test  | `██████████` 100%              | Released     | All Leaderboard user inputs released; GT excluded |
 | Rendered Data - Val   | `░░░░░░░░░░` 1%(103/15411)    | In progress  |                                   |
-| 3D Assets             | `██░░░░░░░░` 20%              | Partially released | Validation assets for 1,000 scenes |
+| 3D Assets             | `█████░░░░░` 50%              | Partially released | Validation scenes and Train resource libraries |
 | Leaderboard           | `██████████` 100%              | Released     | Public evaluation data for four tasks |
 | Baseline code         | `██░░░░░░░░` 25%              | In progress | Last updated: Jul 23              |
 | Data processing       | `░░░░░░░░░░` 0%               | Not released | Expected around Aug              |
@@ -486,17 +486,19 @@ PhysInOne is divided into <strong>Train, Val, and Test</strong> splits, containi
 
 
 
-<h2 id="three-d-assets" style="margin-left: 0; font-size: 1.9em; line-height: 1.22; margin-top: 1.2em; margin-bottom: 0.5em;">🧱 Validation 3D Assets</h2>
+<h2 id="three-d-assets" style="margin-left: 0; font-size: 1.9em; line-height: 1.22; margin-top: 1.2em; margin-bottom: 0.5em;">🧱 3D Assets</h2>
 <div style="margin-left: 24px; text-align: justify;">
 
-The first public 3D asset release is now available and contains Unreal Engine project resources for <strong>1,000 validation scenes</strong>. The current release includes 4,299 files (approximately 22.25 GiB), including eight archives that must be extracted in place while preserving their project-relative paths. Full training asset archives are not part of this validation release.
+The public 3D asset release is now <strong>50% complete</strong>. It contains the shared Unreal Engine project files, Scene and Trajectory resources for <strong>1,000 validation scenes</strong>, six validation resource archives, and seven training resource archives. The current release contains <strong>4,306 downloadable files</strong>, including <strong>15 ZIP archives</strong>, totaling approximately <strong>73.87 GiB</strong>.
+
+The seven training archives add approximately <strong>51.61 GiB</strong> of backgrounds, raw backgrounds, breakable objects, interactable objects, solid objects, appearance materials, and physical materials. Training Scene maps and training Sequence/Trajectory assets are <strong>not released yet</strong>.
 
 - [Browse the `PhysicBenchmark` project](https://huggingface.co/datasets/vLAR/PhysInOne/tree/main/3D%20Assets/PhysicBenchmark)
 - [Download and setup guide](https://huggingface.co/datasets/vLAR/PhysInOne/blob/main/PhysInOne%20Utils/3D_ASSETS_DOWNLOAD.md)
 - [Automated downloader](https://huggingface.co/datasets/vLAR/PhysInOne/blob/main/PhysInOne%20Utils/scripts/download_3d_assets.py)
 - [Exact validation release list](https://huggingface.co/datasets/vLAR/PhysInOne/blob/main/PhysInOne%20Utils/3d_assets_lists/validation.txt)
 
-Install <strong>Unreal Engine 5.5.4</strong>. Windows is recommended for the simplest setup; Linux is also supported with additional platform configuration. The automated downloader retrieves the exact release, safely extracts all eight ZIP files into their correct parent directories, preserves the Unreal Engine package hierarchy, supports interrupted-run recovery, and records detailed logs.
+Install <strong>Unreal Engine 5.5.4</strong>. Windows is recommended for the simplest setup; Linux is also supported with additional platform configuration. The automated downloader currently retrieves and assembles the exact 1,000-scene validation project subset, safely extracts its eight ZIP files into their correct parent directories, preserves the Unreal Engine package hierarchy, supports interrupted-run recovery, and records detailed logs. The newly released training resource archives are available in their corresponding category folders in the project browser linked above.
 
 ```bash
 pip install -U huggingface_hub tqdm