Posted on X by Ziwei Liu 3D and 4D World Modeling

Our survey is dedicated to 𝟯𝗗 𝗮𝗻𝗱 𝟰𝗗 𝘄𝗼𝗿𝗹𝗱 𝗺𝗼𝗱𝗲𝗹𝘀 — enabling embodied agents to 𝗶𝗺𝗮𝗴𝗶𝗻𝗲, 𝗽𝗿𝗲𝗱𝗶𝗰𝘁, and 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁 with dynamic world

Paper @HuggingPapers : https:// huggingface.co/papers/2509.07 996 …
Repo: https:// github.com/worldbench/sur vey … 𝟯𝗗 𝗮𝗻𝗱 𝟰𝗗 𝗪𝗼𝗿𝗹𝗱 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴: 𝗔 𝗦𝘂𝗿𝘃𝗲𝘆

𝗣𝗮𝗽𝗲𝗿: https:// huggingface.co/papers/2509.07 996 … 𝗚𝗶𝘁𝗛𝘂𝗯: https:// github.com/worldbench/sur vey …

𝗪𝗵𝗮𝘁’𝘀 𝗻𝗲𝘄? World models are emerging as the backbone of embodied AI — enabling agents to 𝗶𝗺𝗮𝗴𝗶𝗻𝗲, 𝗽𝗿𝗲𝗱𝗶𝗰𝘁, and

https://huggingface.co/papers/2509.07996 https://github.com/worldbench/awesome-3d-4d-world-models

3D and 4D World Modeling Research Notes

Overview

This survey explores the emerging field of 3D and 4D world modeling, focusing on how these models enable embodied agents to imagine, predict, and interact with dynamic environments. The paper provides a comprehensive overview of existing approaches, challenges, and future directions in this domain [1][2]. It highlights the importance of world models as the backbone for advanced AI systems that can operate in complex, real-world scenarios.

Technical Analysis

The survey emphasizes the role of 3D and 4D world models in enabling agents to perform tasks such as prediction, imagination, and interaction with dynamic environments. According to [Result #1], 3D models capture spatial information, while 4D models incorporate temporal dynamics, allowing for more realistic simulation and decision-making. The paper categorizes existing approaches into frameworks like geometric representations (e.g., point clouds, meshes), physics-based models, and learned representations using deep learning techniques.

The integration of these models with reinforcement learning (RL) is a key focus, as it enables agents to learn optimal policies by interacting with simulated environments [3]. Additionally, the survey discusses the importance of multimodal integration, where 3D/4D models are combined with other sensory data (e.g., vision, language) to enhance perception and decision-making capabilities.

Implementation Details

The paper references several open-source repositories and tools for implementing world models. Notably, [Result #4] provides a curated list of existing 3D and 4D world modeling frameworks on GitHub. These include projects that leverage deep learning libraries like PyTorch and TensorFlow, as well as physics engines such as Unity and Unreal Engine.

The survey also highlights the importance of benchmarking in this field, citing [Result #2] for its contribution to establishing evaluation metrics and datasets for 3D and 4D world modeling tasks. These benchmarks help researchers compare different approaches and identify areas for improvement.

This research intersects with several other technologies, including:

Computer Vision: Techniques like RGB-D sensing and SLAM (Simultaneous Localization and Mapping) are critical for building accurate 3D representations of environments [1][5].
Robotics: World models provide the foundation for autonomous navigation and manipulation tasks, enabling robots to understand and interact with their surroundings [2].
Virtual Reality (VR): Advances in 4D modeling are driving improvements in VR simulations, allowing for more dynamic and interactive virtual worlds [3].
Artificial Intelligence (AI): The integration of world models with AI systems enhances decision-making capabilities, particularly in embodied AI applications [4].

Key Takeaways

[The survey provides a comprehensive framework for understanding 3D and 4D world modeling, emphasizing their role in embodied AI [1].]
[The integration of these models with reinforcement learning enables agents to learn optimal policies through simulation-based training [2].]
[Future research directions include improving multimodal integration and developing benchmarks for evaluating world model performance [3][5].]

Further Research

Here is the 'Further Reading' section based on the provided search results:

[2509.07996] 3D and 4D World Modeling: A Survey - arXiv.org: https://arxiv.org/abs/2509.07996
Awesome 3D and 4D World Models - GitHub: https://github.com/shashankyld/worldmodel_survey
3D and 4D World Modeling: A Survey | Cool Papers - Immersive Paper ...: https://papers.cool/arxiv/2509.07996

3D and 4D World Models A Survey