Introducing MARVEL-40M+: High-Fidelity Text-to-3D Content Creation for Next-Gen XR in LUMINOUS
In the LUMINOUS project’s mission to drive advancements in Extended Reality (XR), MARVEL-40M+ plays a critical role in transforming how 3D models are generated from text descriptions. LUMINOUS envisions a future where users interact seamlessly with intelligent systems that adapt to their context and needs, enhancing experiences in fields like immersive learning, training, and healthcare. MARVEL-40M+ serves as a foundational tool in this quest by improving the quality and scalability of text-to-3D content generation, which is central to building intelligent, multimodal XR platforms.
MARVEL-40M+: Bridging Text and 3D Content Creation
The MARVEL-40M+ dataset is the result of an extensive effort to create high-quality text annotations for over 8.9 million 3D assets aggregated from major 3D datasets. This dataset is a leap forward in addressing the challenges of 3D content generation from textual prompts, providing the necessary detail and accuracy to generate high-fidelity 3D models. In particular, MARVEL-40M+ introduces a multi-level annotation pipeline, using multi-view Vision-Language Models (VLMs) and Large Language Models (LLMs), which provides a new layer of semantic precision and linguistic diversity that was previously lacking in existing datasets.

For LUMINOUS, which aims to build adaptable and intelligent XR systems, MARVEL-40M+ enables the creation of 3D assets directly from text, forming the backbone of immersive environments where users can interact with digital assets seamlessly. With the ability to generate detailed 3D models from prompts, this technology makes it easier for users to navigate new environments, providing rich, context-sensitive visuals and actionable information.
How MARVEL-40M+ and LUMINOUS Align
The LUMINOUS project’s goal to create next-gen multimodal platforms that interact with users via speech, text, and visual avatars aligns closely with MARVEL-40M+‘s capabilities in text-to-3D generation. By leveraging the detailed annotations and multi-level descriptions in MARVEL-40M+, LUMINOUS can provide users with realistic, interactive 3D environments generated from natural language prompts, enhancing areas like immersive training and virtual learning environments.
- Immersive Learning and Healthcare: In XR scenarios, users could describe the characteristics of a 3D model they want to generate—whether it’s a medicinal molecule, anatomical structure, or a rehabilitation tool. MARVEL-40M+ helps generate accurate models quickly, allowing healthcare professionals or students to interact with detailed, personalized assets tailored to the context of the training or rehabilitation process.
- XR-Based Training and Design Evaluation: Imagine an architect or designer asking an XR system to generate a 3D model of a building or environment based on a textual description. With MARVEL-40M+, LUMINOUS can facilitate rapid prototyping and design evaluation, enhancing the efficiency and creativity of professionals across fields.

Revolutionizing 3D Content Creation in LUMINOUS
One of the key features of MARVEL-40M+ is the MARVEL-FX3D pipeline, which enables fast and high-fidelity 3D content generation from text. This two-stage pipeline leverages Stable Diffusion for fine-tuning and pretrained 3D models for rapid conversion, making it possible to generate textured meshes in just 15 seconds. For the LUMINOUS project, this level of speed and fidelity is essential for creating dynamic XR experiences that respond in real-time to user input.
With MARVEL-40M+, LUMINOUS can seamlessly integrate text-to-3D generation into its broader vision for intelligent XR environments, where users can describe, interact with, and modify 3D assets instantly, from simple designs to complex, multi-faceted environments.

Future Applications of MARVEL-40M+ in LUMINOUS
As LUMINOUS continues its journey toward creating intelligent XR ecosystems, MARVEL-40M+ will serve as an essential tool for dynamic, user-driven content generation. The next step is further refining the multi-level text-to-3D pipeline, expanding the capabilities of MARVEL-FX3D, and enabling broader applications in industries such as entertainment, architecture, engineering, and education. The combination of detailed annotations, efficient content generation, and domain-specific metadata ensures that MARVEL-40M+ will be instrumental in shaping the future of immersive, multimodal XR experiences.