Hunyuan3D 2.1 | Image to 3D Model

What is Hunyuan3D-2.1?

Hunyuan3D-2.1 is Tencent's breakthrough 3D asset generation system that turns single images into production-ready 3D models with physically-based rendering (PBR) materials. Building on the strong foundation of Hunyuan3D 2.0, this latest Hunyuan3D-2.1 version delivers significantly improved texture quality with finer surface details and enhanced three-dimensional depth perception.

While Hunyuan3D 2.0 already impressed with solid geometry generation, Hunyuan3D-2.1 takes it to the next level with more nuanced material textures and better spatial understanding. The Hunyuan3D-2.1 system creates proper PBR materials with separate albedo, metallic, and roughness maps, making your generated objects respond to lighting realistically - metals shine convincingly, fabrics absorb light naturally, and surfaces have that perfect tactile quality.

For those familiar with the previous version, you can check out the Hunyuan3D 2.0 workflow to see how far Hunyuan3D-2.1 has come.

Benefits of Hunyuan3D-2.1

• Enhanced Texture Quality: Significant improvement over 2.0 with finer surface details and more realistic material representation in Hunyuan3D-2.1
• Superior 3D Depth: Better spatial understanding creates more convincing three-dimensional forms with Hunyuan3D-2.1
• True PBR Materials: Hunyuan3D-2.1 generates albedo, metallic, and roughness maps for photorealistic rendering that actually works in professional pipelines
• Production-Ready Output: Creates watertight meshes and proper UV mapping that you can immediately use in games, films, or design projects
• Incredible Detail Capture: Hunyuan3D-2.1 preserves fine features like individual calculator buttons, fabric textures, and mechanical parts
• Zero Texture Seams: 3D-aware positioning ensures seamless textures from every viewing angle

Quick Use Guide

Hunyuan3D-2.1 Basic Workflow

1. Prepare your image: Ensure clean background and clear subject - this is critical for best Hunyuan3D-2.1 results
2. Load your reference image using Hunyuan 3D 2.1 Load Image with Transparency
3. Preview your Hunyuan3D-2.1 result in the 3D viewer

Hunyuan3D-2.1 Essential Settings

For Shape Generation:

• steps: 25 (sweet spot for quality vs speed in Hunyuan3D-2.1)
• guidance_scale: 7.5 (how closely it follows your image)
• Keep control_after_generate on "fixed" for consistency

For Texturing:

• view_size: 768 (good quality without killing your VRAM)
• texture_size: 1024 (high-res textures for Hunyuan3D-2.1)
• guidance_scale: 3.0 (texture alignment strength)

Advanced Tips for Hunyuan3D-2.1

Image Preparation is Everything: Clean backgrounds and clear subjects are absolutely critical for optimal Hunyuan3D-2.1 performance. The model performs dramatically better with well-prepared input images - remove backgrounds, center your subject, and ensure good lighting on the main object.

Mesh Quality Control: The Post Process Trimesh node is your friend in Hunyuan3D-2.1. Enable remove_floaters and reduce_faces for cleaner results. Adjust max_facenum based on your needs - lower for real-time applications, higher for high-quality renders.

Texture Resolution Balance: The octree_resolution in the VAE Decoder controls mesh detail level in Hunyuan3D-2.1. 256 is the default, but you can push it higher for more geometric detail if you have the compute power.

More Information

Research & Development:

• Original Paper: Hunyuan3D-2.1 Technical Report
• Official Repository: Tencent Hunyuan3D-2.1
• ComfyUI Integration: ComfyUI-Hunyuan3d-2-1

Acknowledgements

This workflow is powered by Hunyuan3D-2.1, developed by the Tencent Hunyuan3D Team. The Hunyuan3D-2.1 ComfyUI implementation is created by visualbruno and the open-source community, bringing cutting-edge Hunyuan3D-2.1 technology to creators worldwide. Special thanks to the research team for making this fully open-source - democratizing access to production-quality 3D asset generation through Hunyuan3D-2.1.