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---
annotations_creators:
- expert-generated
language:
- en
license: mit
task_categories:
- text-to-3d
- text-to-video
- other
tags:
- blender
- procedural-generation
- physics-simulation
- 4d-generation
- code-generation
pretty_name: Code4D Benchmark
size_categories:
- n<1K
---
# Dataset Card for Code4D (Code2Worlds)
## Dataset Description
- **Paper:** [Code2Worlds: Empowering Coding LLMs for 4D World Generation](https://arxiv.org/abs/2602.11757)
- **Repository:** [GitHub](https://github.com/AIGeeksGroup/Code2Worlds)
### Dataset Summary
The **Code4D** benchmark is a dataset designed to evaluate the capability of Large Language Models (LLMs) in generating physically grounded 4D environments. It pairs natural language prompts with complex 3D scenes (provided here as `.blend` files) that exhibit temporal evolution, physical interactions, and atmospheric changes.
Unlike existing text-to-3D datasets that focus solely on static structures, Code4D challenges models on dynamic fidelity, including fluid dynamics, particle systems, rigid-body dynamics, and soft-body simulations.
This dataset supports the **Code2Worlds** framework, which formulates 4D generation as language-to-simulation code generation using a dual-stream architecture (Object Stream and Scene Stream).
### Supported Tasks and Leaderboards
- **Text-to-4D Scene Generation:** Generating dynamic 3D scenes from text descriptions.
- **Procedural Code Generation:** Evaluating LLMs on generating Blender/Infinigen API calls.
- **Physics Simulation Benchmarking:** Assessing the realism of generated physical interactions.
### Languages
The prompts and documentation are in **English**.
---
## Dataset Structure
### Data Instances
Each instance in the dataset consists of a text prompt and its corresponding Blender project file (`.blend`).
**Example:**
* **Prompt:** "A breeze stirs through the autumn forest, gently swaying the entire tree as leaves dance in the wind."
* **File:** `scene_1.blend`
### Data Fields
- `prompt` (string): The natural language instruction describing the scene and desired dynamics.
- `blend_file` (file): The Blender 3D project file containing the scene layout, assets, and simulation settings.
---
## Dataset Creation
### Curation Rationale
The dataset was constructed to address the "semantic-physical execution gap" in generative models. It specifically targets scenarios where monolithic generation fails, requiring precise control over both local object structures and global environmental layouts.
---
## Considerations for Using the Data
### Software Dependencies
To open and render the `.blend` files properly, you need:
- **Blender 4.3** or higher.
- **Infinigen** libraries.
### Computational Requirements
The benchmark scenes are designed for high-fidelity rendering.
- **Nature Scenes:** Configured for 1920x1080 resolution, 240 frames, 128 samples.
- **Indoor Scenes:** Configured for 1920x1080 resolution, 120 frames, 196 samples.
---
## Citation
If you use this dataset in your research, please cite the following paper:
```bibtex
@article{zhang2026code2worlds,
title={Code2Worlds: Empowering Coding LLMs for 4D World Generation},
author={Zhang, Yi and Wang, Yunshuang and Zhang, Zeyu and Tang, Hao},
journal={arXiv preprint arXiv:2602.11757},
year={2026}
} |