What is TRELLIS 3D?

A Rectified Flow Transformer predicts which parts of 3D space are occupied — essentially sketching the rough shape of the object. This determines where the object exists in three-dimensional space.

Stage 2: Detail Generation

For each occupied region, the model generates a structured latent representation that captures fine geometric details and surface textures. This is where the visual richness comes from.

Flexible Output Formats

One of TRELLIS's most distinctive features is that the same generation can be decoded into multiple output formats:

This means you don't need to choose your output format upfront — generate once, export as needed.

TRELLIS vs TRELLIS 2

Microsoft released two major versions of TRELLIS:

TRELLIS 2 introduces O-Voxel (Omni-Voxel) representation and a Sparse Compression VAE that achieves 16x spatial compression, enabling higher quality with faster generation.

Key Capabilities

Text-to-3D

Describe what you want in natural language and get a 3D model. From "a medieval sword with a ruby pommel" to "a cute robot holding a balloon" — if you can describe it, TRELLIS can generate it.

Image-to-3D

Upload a single photo and TRELLIS reconstructs a full 3D model. This works for objects, characters, products, and more. The model infers depth, occluded surfaces, and texture details from a single viewpoint.

Local 3D Editing

Unlike most 3D generation models, TRELLIS supports local editing — you can modify specific parts of a generated 3D asset without regenerating the entire model. This is invaluable for iterative design workflows.

Real-World Applications

Game Development

Create characters, props, and environment assets in seconds instead of hours. Export as GLB files that work directly in Unity, Unreal Engine, and web-based game frameworks.

3D Printing

TRELLIS generates watertight geometry and manifold meshes that can be exported as STL files for 3D printing — no manual cleanup required.

E-Commerce

Generate 3D product models from catalog photos. Let customers interact with products in 3D on your website, increasing engagement and reducing return rates.

AR/VR Experiences

Create immersive 3D assets for augmented and virtual reality applications. The GLB output format is ideal for WebXR and other AR/VR platforms.

How Does TRELLIS Compare?

TRELLIS stands out in the 3D generation landscape for several reasons:

• Quality: Reddit communities describe it as a "massive quality leap" over previous methods
• Flexibility: The only major model that supports multiple output formats from a single generation
• Editability: Unique local editing capability not available in competing models
• Speed: 3 seconds per generation with TRELLIS 2

The model was trained on 500,000 diverse 3D objects and has been recognized at CVPR 2025, one of the top computer vision conferences in the world.

Getting Started with TRELLIS

Learn how to get the most out of TRELLIS 2 with our step-by-step guides:

• How to Use TRELLIS 2 — complete guide to image-to-3D and text-to-3D generation, parameter tuning, and export formats
• How to Install TRELLIS 2 — set up TRELLIS 2 locally on Windows, Linux, or with ComfyUI
• How to Test TRELLIS 2 — evaluate output quality with benchmarks against Tripo3D, Meshy AI, and Hunyuan3D

Open Source

TRELLIS 2 is fully open source under the MIT license. You can find the code on GitHub:

• github.com/microsoft/TRELLIS — v1
• github.com/microsoft/TRELLIS.2 — v2

Pre-trained model weights are available on Hugging Face.

Use TRELLIS Online

You can also try TRELLIS without setting up anything locally. Our platform provides an easy-to-use interface for generating 3D models from text or images — no coding required.

Technical Details

For those interested in the research behind TRELLIS:

• Paper v1: "Structured 3D Latents for Scalable and Versatile 3D Generation" — arXiv:2412.01506
• Paper v2: "Native and Compact Structured Latents for 3D Generation" — arXiv:2512.14692
• Conference: CVPR 2025

The research was led by the Spatial Intelligence Group at Microsoft Research Asia (MSRA), with key contributors including Jianfeng Xiang, Zelong Lv, Sicheng Xu, Yu Deng, and Jiaolong Yang.

Try TRELLIS 3D Now — Free Online Generator

Ready to create your first 3D model? You don't need to install anything or write a single line of code.

Start Generating 3D Models Now →

Our online TRELLIS 3D generator lets you:

• Upload any image and get a 3D model in seconds
• Describe what you want in natural language
• Export in multiple formats — GLB for games, Gaussian Splatting for web, or NeRF for photorealistic views
• Edit locally — modify specific parts without regenerating the entire model

Why Use Our Online Generator?

Don't have a high-end GPU? No problem. Our cloud infrastructure runs TRELLIS 2 on optimized hardware, delivering 3-second generations without any setup.

Create Your First 3D Model — It's Free →

Conclusion

TRELLIS 3D represents a fundamental shift in how 3D content is created. What once required specialized skills and expensive software can now be done in seconds with AI. Whether you're building games, creating AR experiences, or prototyping products, TRELLIS makes 3D creation accessible to everyone.

As the technology continues to evolve with TRELLIS 2 and beyond, we can expect even faster generation, higher quality, and new creative possibilities that we haven't yet imagined.